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Weltraum Wetter

Solarwindgeschwindigkeit Solarwind-Magnetfelder Mittag 10.7cm Rauschfluss
Bt Bz

Aktualisierung

Aktualisierung

Aktualisierung
ALERT
Geomagnetic K-index of 7
Issued: 19.04.2024 19:52 UTC
Geomagnetic K-index of 7
Threshold Reached: 2024 Apr 19 1951 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G3 - Strong

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

WARNING
Geomagnetic K-index of 7 or greater expected
Issued: 19.04.2024 19:51 UTC
Geomagnetic K-index of 7 or greater expected
Valid From: 2024 Apr 19 1950 UTC
Valid To: 2024 Apr 19 2359 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

WARNING
Geomagnetic K-Index of 6 expected
Issued: 19.04.2024 19:42 UTC
Geomagnetic K-Index of 6 expected
Valid From: 2024 Apr 19 1939 UTC
Valid To: 2024 Apr 19 2359 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

ALERT
Geomagnetic K-index of 6
Ausgestellt: 19.04.2024 19:40 UTC
Geomagnetic K-index of 6
Threshold Reached: 2024 Apr 19 1935 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

WARNING
Geomagnetic K-Index of 6 expected
Ausgestellt: 19.04.2024 19:40 UTC
Geomagnetic K-Index of 6 expected
Valid From: 2024 Apr 19 1939 UTC
Valid To: 2024 Apr 19 2359 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 19.04.2024 19:20 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Apr 19 1915 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 19.04.2024 17:55 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4589
Valid From: 2024 Apr 19 0650 UTC
Now Valid Until: 2024 Apr 20 0600 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 19.04.2024 15:52 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Apr 19 1550 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 5 expected
Ausgestellt: 19.04.2024 14:16 UTC
Geomagnetic K-index of 5 expected
Extension to Serial Number: 1866
Valid From: 2024 Apr 19 0900 UTC
Now Valid Until: 2024 Apr 19 2359 UTC
Warning Condition: persistence

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 19.04.2024 14:15 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Apr 19 1414 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

WARNING
Geomagnetic K-index of 5 expected
Ausgestellt: 19.04.2024 09:00 UTC
Geomagnetic K-index of 5 expected
Valid From: 2024 Apr 19 0900 UTC
Valid To: 2024 Apr 19 1500 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Geomagnetic K-index of 4
Ausgestellt: 19.04.2024 07:50 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 19 0745 UTC
Synoptic Period: 0600-0900 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 19.04.2024 06:48 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 19 0650 UTC
Valid To: 2024 Apr 19 1800 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-Index of 6 expected
Ausgestellt: 16.04.2024 23:09 UTC
Geomagnetic K-Index of 6 expected
Valid From: 2024 Apr 16 2309 UTC
Valid To: 2024 Apr 17 0300 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

EXTENDED WARNING
Geomagnetic K-index of 5 expected
Ausgestellt: 16.04.2024 22:55 UTC
Geomagnetic K-index of 5 expected
Extension to Serial Number: 1864
Valid From: 2024 Apr 16 1909 UTC
Now Valid Until: 2024 Apr 17 0600 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 16.04.2024 22:54 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4587
Valid From: 2024 Apr 15 2306 UTC
Now Valid Until: 2024 Apr 17 0900 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 16.04.2024 22:45 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Apr 16 2239 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

WATCH
Geomagnetic Storm Category G1 Predicted
Ausgestellt: 16.04.2024 21:23 UTC
Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 17: None (Below G1) Apr 18: G1 (Minor) Apr 19: None (Below G1)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 16.04.2024 19:12 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Apr 16 1910 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

WARNING
Geomagnetic K-index of 5 expected
Ausgestellt: 16.04.2024 19:09 UTC
Geomagnetic K-index of 5 expected
Valid From: 2024 Apr 16 1909 UTC
Valid To: 2024 Apr 16 2359 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 16.04.2024 14:24 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4586
Valid From: 2024 Apr 15 2306 UTC
Now Valid Until: 2024 Apr 16 2359 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 5 expected
Ausgestellt: 16.04.2024 11:08 UTC
Geomagnetic K-index of 5 expected
Valid From: 2024 Apr 16 1108 UTC
Valid To: 2024 Apr 16 1500 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 16.04.2024 05:56 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4585
Valid From: 2024 Apr 15 2306 UTC
Now Valid Until: 2024 Apr 16 1500 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Geomagnetic K-index of 4
Ausgestellt: 16.04.2024 01:00 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 16 0053 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 15.04.2024 23:06 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 15 2306 UTC
Valid To: 2024 Apr 16 0600 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WATCH
Geomagnetic Storm Category G1 Predicted
Ausgestellt: 13.04.2024 21:10 UTC
Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 14: G1 (Minor) Apr 15: G1 (Minor) Apr 16: None (Below G1)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

WATCH
Geomagnetic Storm Category G1 Predicted
Ausgestellt: 12.04.2024 21:12 UTC
Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 13: None (Below G1) Apr 14: G1 (Minor) Apr 15: None (Below G1)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

SUMMARY
X-ray Event exceeded M5
Ausgestellt: 11.04.2024 17:27 UTC
X-ray Event exceeded M5
Begin Time: 2024 Apr 11 1652 UTC
Maximum Time: 2024 Apr 11 1706 UTC
End Time: 2024 Apr 11 1711 UTC
X-ray Class: M5.4
Location: S15E90
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

ALERT
Type IV Radio Emission
Ausgestellt: 11.04.2024 17:14 UTC
Type IV Radio Emission
Begin Time: 2024 Apr 11 1659 UTC
Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

ALERT
X-Ray Flux exceeded M5
Ausgestellt: 11.04.2024 17:07 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Apr 11 1705 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 09.04.2024 05:34 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 09 0533 UTC
Valid To: 2024 Apr 09 1200 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 08.04.2024 05:21 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 08 0520 UTC
Valid To: 2024 Apr 08 1500 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 06.04.2024 02:03 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 06 0205 UTC
Valid To: 2024 Apr 06 1200 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

CANCEL WATCH
Geomagnetic Storm Category G1 Predicted
Ausgestellt: 05.04.2024 18:06 UTC
Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 994
Original Issue Time: 2024 Apr 02 1926 UTC

Comment: Conditions no longer meet watch criteria.

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 05.04.2024 05:55 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4580
Valid From: 2024 Apr 04 1138 UTC
Now Valid Until: 2024 Apr 05 2359 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Geomagnetic K-index of 4
Ausgestellt: 05.04.2024 00:02 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 04 2359 UTC
Synoptic Period: 2100-0000 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 04.04.2024 22:56 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4579
Valid From: 2024 Apr 04 1138 UTC
Now Valid Until: 2024 Apr 05 0600 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 04.04.2024 11:39 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 04 1138 UTC
Valid To: 2024 Apr 04 2359 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 03.04.2024 02:10 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 03 0210 UTC
Valid To: 2024 Apr 03 0600 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WATCH
Geomagnetic Storm Category G1 Predicted
Ausgestellt: 02.04.2024 19:26 UTC
Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 03: None (Below G1) Apr 04: G1 (Minor) Apr 05: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 02.04.2024 11:03 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 02 1102 UTC
Valid To: 2024 Apr 02 1800 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WATCH
Geomagnetic Storm Category G1 Predicted
Ausgestellt: 01.04.2024 18:08 UTC
Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 02: None (Below G1) Apr 03: None (Below G1) Apr 04: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Geomagnetic K-index of 4
Ausgestellt: 01.04.2024 08:03 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 01 0803 UTC
Synoptic Period: 0600-0900 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 01.04.2024 07:39 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 01 0740 UTC
Valid To: 2024 Apr 01 1500 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Geomagnetic K-index of 4
Ausgestellt: 31.03.2024 03:00 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Mar 31 0158 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 31.03.2024 01:48 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Mar 31 0147 UTC
Valid To: 2024 Mar 31 1800 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

SUMMARY
X-ray Event exceeded M5
Ausgestellt: 30.03.2024 22:24 UTC
X-ray Event exceeded M5
Begin Time: 2024 Mar 30 2101 UTC
Maximum Time: 2024 Mar 30 2116 UTC
End Time: 2024 Mar 30 2215 UTC
X-ray Class: M9.4
Location: S13W88
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

ALERT
X-Ray Flux exceeded M5
Ausgestellt: 30.03.2024 21:16 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 30 2114 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

SUMMARY
X-ray Event exceeded M5
Ausgestellt: 28.03.2024 23:37 UTC
X-ray Event exceeded M5
Begin Time: 2024 Mar 28 2029 UTC
Maximum Time: 2024 Mar 28 2056 UTC
End Time: 2024 Mar 28 2101 UTC
X-ray Class: X1.1
Optical Class: 3b
Location: S14W61
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

SUMMARY
X-ray Event exceeded M5
Ausgestellt: 28.03.2024 21:12 UTC
X-ray Event exceeded M5
Begin Time: 2024 Mar 28 2029 UTC
Maximum Time: 2024 Mar 28 2056 UTC
End Time: 2024 Mar 28 2101 UTC
X-ray Class: X1.1
Optical Class: 3b
Location: S14W61
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

ALERT
X-Ray Flux exceeded M5
Ausgestellt: 28.03.2024 20:45 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 28 2041 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

SUMMARY
X-ray Event exceeded M5
Ausgestellt: 28.03.2024 16:33 UTC
X-ray Event exceeded M5
Begin Time: 2024 Mar 28 1540 UTC
Maximum Time: 2024 Mar 28 1556 UTC
End Time: 2024 Mar 28 1603 UTC
X-ray Class: M6.1
Optical Class: 1n
Location: S13W56
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

ALERT
X-Ray Flux exceeded M5
Ausgestellt: 28.03.2024 16:00 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 28 1556 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

SUMMARY
X-ray Event exceeded M5
Ausgestellt: 28.03.2024 06:45 UTC
X-ray Event exceeded M5
Begin Time: 2024 Mar 28 0616 UTC
Maximum Time: 2024 Mar 28 0629 UTC
End Time: 2024 Mar 28 0636 UTC
X-ray Class: M7.0
Location: S13W52
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

ALERT
X-Ray Flux exceeded M5
Ausgestellt: 28.03.2024 06:29 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 28 0627 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 26.03.2024 02:51 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4573
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 26 0900 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

SUMMARY
Proton Event 10MeV Integral Flux exceeded 10pfu
Ausgestellt: 26.03.2024 01:30 UTC
Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024 Mar 23 0815 UTC
Maximum Time: 2024 Mar 23 1820 UTC
End Time: 2024 Mar 25 1515 UTC
Maximum 10MeV Flux: 956 pfu
NOAA Scale: S2 - Moderate

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 25.03.2024 19:12 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4572
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 26 0300 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

EXTENDED WARNING
Proton 10MeV Integral Flux above 10pfu expected
Ausgestellt: 25.03.2024 11:53 UTC
Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 553
Valid From: 2024 Mar 23 0617 UTC
Now Valid Until: 2024 Mar 25 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 25.03.2024 08:56 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4571
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 25 2100 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

EXTENDED WARNING
Geomagnetic K-index of 5 expected
Ausgestellt: 25.03.2024 08:56 UTC
Geomagnetic K-index of 5 expected
Extension to Serial Number: 1861
Valid From: 2024 Mar 23 2036 UTC
Now Valid Until: 2024 Mar 25 1800 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-Index of 6 expected
Ausgestellt: 25.03.2024 08:56 UTC
Geomagnetic K-Index of 6 expected
Extension to Serial Number: 512
Valid From: 2024 Mar 24 1435 UTC
Now Valid Until: 2024 Mar 25 1500 UTC
Warning Condition: persistence

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

SUMMARY
10cm Radio Burst
Ausgestellt: 25.03.2024 07:20 UTC
10cm Radio Burst
Begin Time: 2024 Mar 25 0643 UTC
Maximum Time: 2024 Mar 25 0643 UTC
End Time: 2024 Mar 25 0645 UTC
Duration: 2 minutes
Peak Flux: 310 sfu
Latest Penticton Noon Flux: 195 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

SUMMARY
Proton Event 10MeV Integral Flux exceeded 100pfu
Ausgestellt: 25.03.2024 07:01 UTC
Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2024 Mar 23 1405 UTC
Maximum Time: 2024 Mar 23 1820 UTC
End Time: 2024 Mar 24 1945 UTC
Maximum 10MeV Flux: 956 pfu
NOAA Scale: S2 - Moderate

ALERT
Geomagnetic K-index of 5
Ausgestellt: 25.03.2024 05:24 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 25 0523 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Proton 10MeV Integral Flux above 10pfu expected
Ausgestellt: 24.03.2024 23:36 UTC
Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 552
Valid From: 2024 Mar 23 0617 UTC
Now Valid Until: 2024 Mar 25 1200 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

Comment: This is an extension of the 10 MeV > 10pfu (S1) warning condition in response to continued flux above the S1 threshold.

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

ALERT
Geomagnetic K-index of 6
Ausgestellt: 24.03.2024 19:07 UTC
Geomagnetic K-index of 6
Threshold Reached: 2024 Mar 24 1903 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 24.03.2024 18:43 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 24 1840 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Geomagnetic K-index of 8, 9-
Ausgestellt: 24.03.2024 16:29 UTC
Geomagnetic K-index of 8, 9-
Threshold Reached: 2024 Mar 24 1628 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G4 - Severe

Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude.
Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
Radio - HF (high frequency) radio propagation sporadic or blacked out.
Aurora - Aurora may be seen as low as Alabama and northern California.

ALERT
Geomagnetic K-index of 7
Ausgestellt: 24.03.2024 15:47 UTC
Geomagnetic K-index of 7
Threshold Reached: 2024 Mar 24 1546 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G3 - Strong

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

WARNING
Geomagnetic K-index of 7 or greater expected
Ausgestellt: 24.03.2024 15:43 UTC
Geomagnetic K-index of 7 or greater expected
Valid From: 2024 Mar 24 1543 UTC
Valid To: 2024 Mar 25 0600 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

ALERT
Geomagnetic K-index of 6
Ausgestellt: 24.03.2024 15:31 UTC
Geomagnetic K-index of 6
Threshold Reached: 2024 Mar 24 1526 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 24.03.2024 15:17 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 24 1516 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

SUMMARY
Geomagnetic Sudden Impulse
Ausgestellt: 24.03.2024 15:02 UTC
Geomagnetic Sudden Impulse
Observed: 2024 Mar 24 1437 UTC
Deviation: 377 nT
Station: MEA

ALERT
Geomagnetic K-index of 6
Ausgestellt: 24.03.2024 14:45 UTC
Geomagnetic K-index of 6
Threshold Reached: 2024 Mar 24 1444 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 24.03.2024 14:43 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 24 1443 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 24.03.2024 14:34 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4570
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 25 1500 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

EXTENDED WARNING
Geomagnetic K-index of 5 expected
Ausgestellt: 24.03.2024 14:34 UTC
Geomagnetic K-index of 5 expected
Extension to Serial Number: 1860
Valid From: 2024 Mar 23 2036 UTC
Now Valid Until: 2024 Mar 25 1200 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

WARNING
Geomagnetic K-Index of 6 expected
Ausgestellt: 24.03.2024 14:34 UTC
Geomagnetic K-Index of 6 expected
Valid From: 2024 Mar 24 1435 UTC
Valid To: 2024 Mar 25 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

WARNING
Geomagnetic Sudden Impulse expected
Ausgestellt: 24.03.2024 14:26 UTC
Geomagnetic Sudden Impulse expected
Valid From: 2024 Mar 24 1430 UTC
Valid To: 2024 Mar 24 1500 UTC
IP Shock Passage Observed: 2024 Mar 24 1411 UTC

EXTENDED WARNING
Geomagnetic K-index of 5 expected
Ausgestellt: 24.03.2024 08:55 UTC
Geomagnetic K-index of 5 expected
Extension to Serial Number: 1859
Valid From: 2024 Mar 23 2036 UTC
Now Valid Until: 2024 Mar 24 1500 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 24.03.2024 08:55 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4569
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 24 2100 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 24.03.2024 03:01 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 24 0259 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Geomagnetic K-index of 6
Ausgestellt: 23.03.2024 23:22 UTC
Geomagnetic K-index of 6
Threshold Reached: 2024 Mar 23 2320 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

EXTENDED WARNING
Geomagnetic K-index of 5 expected
Ausgestellt: 23.03.2024 22:24 UTC
Geomagnetic K-index of 5 expected
Extension to Serial Number: 1858
Valid From: 2024 Mar 23 2036 UTC
Now Valid Until: 2024 Mar 24 0900 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 23.03.2024 22:23 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4568
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 24 1200 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-Index of 6 expected
Ausgestellt: 23.03.2024 22:20 UTC
Geomagnetic K-Index of 6 expected
Valid From: 2024 Mar 23 2219 UTC
Valid To: 2024 Mar 24 0600 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 23.03.2024 21:44 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 23 2144 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 23.03.2024 20:56 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 23 2055 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Proton 10MeV Integral Flux above 10pfu expected
Ausgestellt: 23.03.2024 20:43 UTC
Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 551
Valid From: 2024 Mar 23 0617 UTC
Now Valid Until: 2024 Mar 24 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S2 - Moderate

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

WARNING
Geomagnetic K-index of 5 expected
Ausgestellt: 23.03.2024 20:37 UTC
Geomagnetic K-index of 5 expected
Valid From: 2024 Mar 23 2036 UTC
Valid To: 2024 Mar 24 0600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

WATCH
Geomagnetic Storm Category G3 Predicted
Ausgestellt: 23.03.2024 18:40 UTC
Geomagnetic Storm Category G3 Predicted

Highest Storm Level Predicted by Day:
Mar 24: G2 (Moderate) Mar 25: G3 (Strong) Mar 26: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 23.03.2024 17:54 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4567
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 24 0600 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

SUMMARY
X-ray Event exceeded M5
Ausgestellt: 23.03.2024 15:14 UTC
X-ray Event exceeded M5
Begin Time: 2024 Mar 23 1351 UTC
Maximum Time: 2024 Mar 23 1402 UTC
End Time: 2024 Mar 23 1415 UTC
X-ray Class: M5.3
Optical Class: sf
Location: N21W02
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

ALERT
Proton Event 10MeV Integral Flux exceeded 100pfu
Ausgestellt: 23.03.2024 14:30 UTC
Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2024 Mar 23 1405 UTC
NOAA Scale: S2 - Moderate

Potential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience small, increased radiation exposures.
Spacecraft - Infrequent single-event upsets to satellites are possible.
Radio - Small effects on polar HF (high frequency) propagation resulting in fades at lower frequencies.

ALERT
X-Ray Flux exceeded M5
Ausgestellt: 23.03.2024 13:54 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 23 1352 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 23.03.2024 11:55 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4566
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 23 1800 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 23.03.2024 09:04 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 23 0859 UTC
Synoptic Period: 0600-0900 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Proton Event 10MeV Integral Flux exceeded 10pfu
Ausgestellt: 23.03.2024 08:33 UTC
Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024 Mar 23 0815 UTC
NOAA Scale: S1 - Minor

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

WARNING
Proton 10MeV Integral Flux above 10pfu expected
Ausgestellt: 23.03.2024 06:17 UTC
Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2024 Mar 23 0617 UTC
Valid To: 2024 Mar 23 2100 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

ALERT
Geomagnetic K-index of 5
Ausgestellt: 23.03.2024 05:37 UTC
Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 23 0536 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

WARNING
Geomagnetic K-index of 5 expected
Ausgestellt: 23.03.2024 05:23 UTC
Geomagnetic K-index of 5 expected
Valid From: 2024 Mar 23 0523 UTC
Valid To: 2024 Mar 23 1200 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ALERT
Geomagnetic K-index of 4
Ausgestellt: 23.03.2024 05:12 UTC
Geomagnetic K-index of 4
Threshold Reached: 2024 Mar 23 0512 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 23.03.2024 04:14 UTC
Geomagnetic K-index of 4 expected
Valid From: 2024 Mar 23 0415 UTC
Valid To: 2024 Mar 23 1200 UTC
Warning Condition: Onset

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

SUMMARY
10cm Radio Burst
Ausgestellt: 23.03.2024 02:33 UTC
10cm Radio Burst
Begin Time: 2024 Mar 23 0107 UTC
Maximum Time: 2024 Mar 23 0117 UTC
End Time: 2024 Mar 23 0213 UTC
Duration: 66 minutes
Peak Flux: 240 sfu
Latest Penticton Noon Flux: 198 sfu
Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

SUMMARY
X-ray Event exceeded X1
Ausgestellt: 23.03.2024 02:31 UTC
X-ray Event exceeded X1
Begin Time: 2024 Mar 23 0058 UTC
Maximum Time: 2024 Mar 23 0133 UTC
End Time: 2024 Mar 23 0222 UTC
X-ray Class: X1.1
Location: N17E03
NOAA Scale: R3 - Strong

Comment: Location is difficult to ascertain with certainty because both Region 3614 and Region 3615 (S13E10) erupted with nearly similar intensity.

Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

ALERT
Type II Radio Emission
Ausgestellt: 23.03.2024 02:02 UTC
Type II Radio Emission
Begin Time: 2024 Mar 23 0109 UTC
Estimated Velocity: 791 km/s
Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

ALERT
X-Ray Flux exceeded M5
Ausgestellt: 23.03.2024 01:19 UTC
X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 23 0116 UTC
NOAA Scale: R2 - Moderate

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

WATCH
Geomagnetic Storm Category G1 Predicted
Ausgestellt: 22.03.2024 20:13 UTC
Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Mar 23: None (Below G1) Mar 24: None (Below G1) Mar 25: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 22.03.2024 11:55 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4564
Valid From: 2024 Mar 21 0304 UTC
Now Valid Until: 2024 Mar 22 1500 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

EXTENDED WARNING
Geomagnetic K-index of 4 expected
Ausgestellt: 22.03.2024 08:55 UTC
Geomagnetic K-index of 4 expected
Extension to Serial Number: 4563
Valid From: 2024 Mar 21 0304 UTC
Now Valid Until: 2024 Mar 22 1200 UTC
Warning Condition: Persistence

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

Table

Datum Radio flux 10.7 cm SESC Sonnenflecken Anzahl Sonnenfleckenbereich 10E-6 Neue Region GOES15 X-ray Bkgd flux Lichtblitze
X-ray Optisch
C M X S 1 2 3
21.03.2024 197 141 1060 2 * 3 0 0 4 0 0 0
22.03.2024 198 171 1080 1 * 15 2 0 18 1 1 0
23.03.2024 209 146 1280 1 * 5 12 1 9 3 3 0
24.03.2024 195 145 1230 1 * 12 9 0 12 6 2 0
25.03.2024 190 163 1540 1 * 10 1 0 20 1 0 0
26.03.2024 178 149 1480 0 * 16 6 0 9 0 0 0
27.03.2024 175 114 1270 0 * 13 2 0 27 2 0 0
28.03.2024 173 101 1150 0 * 8 3 1 6 3 1 1
29.03.2024 167 79 1090 0 * 12 2 0 15 1 0 0
30.03.2024 140 60 930 1 * 8 1 0 7 0 0 0
31.03.2024 134 50 110 1 * 6 0 0 0 0 0 0
01.04.2024 125 50 112 1 * 0 1 0 2 0 0 0
02.04.2024 113 35 76 1 * 0 0 0 0 0 0 0
03.04.2024 112 45 101 1 * 0 0 0 0 0 0 0
04.04.2024 114 47 170 1 * 0 0 0 1 0 0 0
05.04.2024 121 81 310 3 * 5 0 0 0 0 0 0
06.04.2024 123 71 400 1 * 1 0 0 0 0 0 0
07.04.2024 125 79 380 0 * 2 0 0 1 0 0 0
08.04.2024 125 79 470 1 * 2 0 0 0 0 0 0
09.04.2024 124 64 405 0 * 2 0 0 0 0 0 0
10.04.2024 131 54 410 1 * 11 0 0 3 0 0 0
11.04.2024 144 81 560 1 * 10 1 0 4 0 0 0
12.04.2024 152 83 570 0 * 8 0 0 7 0 0 0
13.04.2024 161 115 750 2 * 8 1 0 3 0 0 0
14.04.2024 178 152 770 3 * 13 1 0 12 1 0 0
15.04.2024 192 193 1070 2 * 13 8 0 12 5 0 0
16.04.2024 199 176 1200 1 * 4 1 0 0 0 1 0
17.04.2024 217 199 1150 2 * 12 1 0 9 1 1 0
18.04.2024 227 247 1380 2 * 3 3 0 11 2 0 0
19.04.2024 213 243 1120 3 * 11 2 0 11 1 0 0
Mittelwert/Total 162 114 787 34 213 57 2 203 27 9 1

Übersichtsgrafik

Lichtblitze

Solar wind

Solar Wind

The solar wind is a stream of plasma released from the upper atmosphere of the Sun. It consists of mostly electrons, protons and alpha particles with energies usually between 1.5 and 10 keV. The stream of particles varies in density, temperature, and speed over time and over solar longitude. These particles can escape the Sun's gravity because of their high energy, from the high temperature of the corona and magnetic, electrical and electromagnetic phenomena in it.

The solar wind is divided into two components, respectively termed the slow solar wind and the fast solar wind. The slow solar wind has a velocity of about 400 km/s, a temperature of 1.4–1.6×10e6 K and a composition that is a close match to the corona. By contrast, the fast solar wind has a typical velocity of 750 km/s, a temperature of 8×10e5 K and it nearly matches the composition of the Sun's photosphere. The slow solar wind is twice as dense and more variable in intensity than the fast solar wind. The slow wind also has a more complex structure, with turbulent regions and large-scale structures.

Solar radio flux at 10.7 cm

Solar radio flux at 10.7 cm

The solar radio flux at 10.7 cm (2800 MHz) is an excellent indicator of solar activity. Often called the F10.7 index, it is one of the longest running records of solar activity. The F10.7 radio emissions originates high in the chromosphere and low in the corona of the solar atmosphere. The F10.7 correlates well with the sunspot number as well as a number of UltraViolet (UV) and visible solar irradiance records. Reported in “solar flux units”, (s.f.u.), the F10.7 can vary from below 50 s.f.u., to above 300 s.f.u., over the course of a solar cycle.

Flares

Flares

A solar flare is a sudden flash of brightness observed over the Sun's surface or the solar limb, which is interpreted as a large energy release of up to 6 × 10e25 joules of energy. They are often, but not always, followed by a colossal coronal mass ejection. The flare ejects clouds of electrons, ions, and atoms through the corona of the sun into space. These clouds typically reach Earth a day or two after the event.

Solar flares affect all layers of the solar atmosphere (photosphere, chromosphere, and corona), when the plasma medium is heated to tens of millions of kelvin, while the electrons, protons, and heavier ions are accelerated to near the speed of light. They produce radiation across the electromagnetic spectrum at all wavelengths, from radio waves to gamma rays, although most of the energy is spread over frequencies outside the visual range and for this reason the majority of the flares are not visible to the naked eye and must be observed with special instruments. Flares occur in active regions around sunspots, where intense magnetic fields penetrate the photosphere to link the corona to the solar interior. Flares are powered by the sudden (timescales of minutes to tens of minutes) release of magnetic energy stored in the corona. The same energy releases may produce coronal mass ejections (CME), although the relation between CMEs and flares is still not well established.

The frequency of occurrence of solar flares varies, from several per day when the Sun is particularly "active" to less than one every week when the Sun is "quiet", following the 11-year cycle (the solar cycle). Large flares are less frequent than smaller ones.

Classification

Solar flares are classified as A, B, C, M or X according to the peak flux (in watts per square metre, W/m2) of 100 to 800 picometre X-rays near Earth, as measured on the GOES spacecraft.

Classification Peak Flux Range at 100-800 picometer
W/m2
A < 10e-7
B 10e-7 to 10e-6
C 10e-6 to 10e-5
M 10e-5 to 10e-4
X 10e-4 to 10e-3
Z > 10e-3

An earlier flare classification is based on Hα spectral observations. The scheme uses both the intensity and emitting surface. The classification in intensity is qualitative, referring to the flares as: (f)aint, (n)ormal or (b)rilliant. The emitting surface is measured in terms of millionths of the hemisphere and is described below. (The total hemisphere area AH = 6.2 × 1012 km2.)

Classification Corrected area
(millionths of hemisphere)
S < 100
1 100 - 250
2 250 - 600
3 600 - 1200
4 > 1200

Sunspot number

Sunspots

Sunspots are temporary phenomena on the photosphere of the Sun that appear visibly as dark spots compared to surrounding regions. They correspond to concentrations of magnetic field that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere. Sunspots usually appear in pairs, with pair members of opposite magnetic polarity. The number of sunspots varies according to the approximately 11-year solar cycle.

Sunspot populations quickly rise and more slowly fall on an irregular cycle of 11 years, although significant variations in the number of sunspots attending the 11-year period are known over longer spans of time. For example, from 1900 to the 1960s, the solar maxima trend of sunspot count has been upward; from the 1960s to the present, it has diminished somewhat. Over the last decades the Sun has had a markedly high average level of sunspot activity; it was last similarly active over 8,000 years ago.

The number of sunspots correlates with the intensity of solar radiation over the period since 1979, when satellite measurements of absolute radiative flux became available. Since sunspots are darker than the surrounding photosphere it might be expected that more sunspots would lead to less solar radiation and a decreased solar constant. However, the surrounding margins of sunspots are brighter than the average, and so are hotter; overall, more sunspots increase the Sun's solar constant or brightness. The variation caused by the sunspot cycle to solar output is relatively small, on the order of 0.1% of the solar constant (a peak-to-trough range of 1.3 W/m2 compared to 1366 W/m2 for the average solar constant).

K-Indizes



Heute


0h
UTC
3h
UTC
6h
UTC
9h
UTC
12h
UTC
15h
UTC
18h
UTC
21h
UTC
2. 67 2. 00 3.



Data


Estimated Planetary

Estimated Planetary

Datum A K-Indizes (UTC)
0h 3h 6h 9h 12h 15h 18h 21h
22.03.2024 11 3. 67 3. 33 3.
23.03.2024 36 2. 67 5. 00 4.
24.03.2024 64 4. 67 3. 33 3.
25.03.2024 22 4. 33 5. 00 3.
26.03.2024 11 3. 33 2. 67 1.
27.03.2024 7 3. 00 1. 33 2.
28.03.2024 7 2. 00 1. 33 2.
29.03.2024 6 2. 00 2. 00 1.
30.03.2024 5 0. 67 1. 00 1.
31.03.2024 9 3. 67 2. 00 2.
01.04.2024 11 2. 00 3. 33 3.
02.04.2024 8 1. 67 1. 67 1.
03.04.2024 7 3. 00 2. 33 1.
04.04.2024 12 1. 67 1. 33 2.
05.04.2024 12 2. 33 3. 33 3.
06.04.2024 10 3. 33 2. 33 3.
07.04.2024 6 1. 67 2. 00 1.
08.04.2024 8 2. 67 3. 33 3.
09.04.2024 11 0. 67 2. 67 3.
10.04.2024 8 3. 00 1. 67 2.
11.04.2024 6 2. 33 2. 67 0.
12.04.2024 7 2. 33 2. 67 1.
13.04.2024 5 2. 00 2. 33 0.
14.04.2024 6 2. 33 1. 00 2.
15.04.2024 8 2. 33 2. 00 0.
16.04.2024 31 4. 00 3. 33 4.
17.04.2024 7 3. 00 1. 33 1.
18.04.2024 4 1. 67 0. 67 0.
19.04.2024 41 2. 33 1. 33 4.
20.04.2024 14 2. 67 2. 00 3.

Middle Latitude

Datum A K-Indizes
22.03.2024 10 3 3 3 3 1 2 1 1
23.03.2024 25 3 5 4 4 3 4 3 4
24.03.2024 43 4 3 3 4 5 7 5 4
25.03.2024 17 4 4 3 3 4 2 2 2
26.03.2024 11 3 2 1 3 2 2 3 3
27.03.2024 7 3 1 2 2 2 2 1 2
28.03.2024 6 1 1 2 1 2 2 2 2
29.03.2024 4 1 1 1 2 2 2 1 0
30.03.2024 4 1 1 1 1 2 2 1 1
31.03.2024 8 3 2 2 2 2 2 2 2
01.04.2024 9 1 3 3 1 2 3 2 2
02.04.2024 7 0 1 1 3 3 3 1 1
03.04.2024 10 2 1 1 1 2 2 1 5
04.04.2024 33 6 3 3 3 3 4 6 3
05.04.2024 10 2 3 2 3 2 3 2 2
06.04.2024 8 3 2 3 2 2 1 1 2
07.04.2024 5 1 2 1 1 2 2 1 1
08.04.2024 8 2 3 3 1 2 2 1 1
09.04.2024 10 1 2 3 2 3 2 2 3
10.04.2024 7 2 1 2 2 3 2 2 1
11.04.2024 6 2 2 0 2 2 2 2 1
12.04.2024 6 1 2 1 2 2 2 2 2
13.04.2024 6 2 2 0 1 2 3 2 1
14.04.2024 5 1 0 2 2 2 1 2 2
15.04.2024 7 1 2 0 2 2 2 2 3
16.04.2024 17 3 1 4 3 3 3 4
17.04.2024 8 3 2 1 2 2 1 3 2
18.04.2024 5 2 0 2 1 2 1 2
19.04.2024 21 2 1 4 4 4 3 5 3
20.04.2024 2 2 3 3 3 2 2

High Latitude

Datum A K-Indizes
22.03.2024 9 3 2 3 4 1 1 0 0
23.03.2024 44 2 4 7 5 4 5 4 4
24.03.2024 00 4 4 5 5 6 9 7 4
25.03.2024 21 3 3 4 4 5 3 3 1
26.03.2024 9 2 3 1 3 3 2 1 2
27.03.2024 4 2 2 2 2 1 0 0 1
28.03.2024 13 2 2 1 5 4 1 1 1
29.03.2024 6 1 0 3 3 3 1 0 0
30.03.2024 2 0 0 0 1 0 1 1 1
31.03.2024 4 2 1 2 2 0 1 0 2
01.04.2024 14 2 3 5 3 3 1 2 1
02.04.2024 9 1 1 0 5 2 1 1 1
03.04.2024 8 2 2 2 3 2 3 1 0
04.04.2024 18 0 0 2 5 5 3 2 3
05.04.2024 21 2 3 4 5 5 3 2 1
06.04.2024 12 3 2 4 3 3 1 2 1
07.04.2024 8 2 2 1 3 3 2 1 1
08.04.2024 9 2 3 4 3 1 1 0 0
09.04.2024 18 1 2 3 5 5 2 2 2
10.04.2024 11 2 1 1 4 2 4 2 1
11.04.2024 3 2 1 0 1 1 1 1 1
12.04.2024 3 1 2 1 1 0 1 1 1
13.04.2024 2 1 1 1 0 0 0 0 1
14.04.2024 3 2 0 2 1 1 0 1 1
15.04.2024 2 1 1 0 1 0 0 2 1
16.04.2024 36 3 3 5 4 4 5 6 4
17.04.2024 13 3 1 1 3 3 5 1 1
18.04.2024 1 1 0 0 1 0 0 0 1
19.04.2024 46 2 1 5 5 4 7 6 3
20.04.2024 2 2 4 6 3 3 2

About

The K-index quantifies disturbances in the horizontal component of earth's magnetic field with an integer in the range 0–9 with 1 being calm and 5 or more indicating a geomagnetic storm. It is derived from the maximum fluctuations of horizontal components observed on a magnetometer during a three-hour interval. The label K comes from the German word Kennziffer meaning “characteristic digit”. The K-index was introduced by Julius Bartels in 1938.

The Estimated 3-hour Planetary Kp-index is derived at the NOAA Space Weather Prediction Center using data from the following ground-based magnetometers:

  • Sitka, Alaska
  • Meanook, Canada
  • Ottawa, Canada
  • Fredericksburg, Virginia
  • Hartland, UK
  • Wingst, Germany
  • Niemegk, Germany
  • Canberra, Australia

These data are made available thanks to the cooperative efforts between SWPC and data providers around the world, which currently includes the U.S. Geological Survey, Natural Resources Canada (NRCAN), the British Geological Survey, the German Research Centre for Geosciences (GFZ), and Geoscience Australia. Important magnetometer observations are also contributed by the Institut de Physique du Globe de Paris and the Korean Space Weather Center K-index Watches are issued when the highest predicted NOAA estimated Kp-indices for a day are K = 5, 6, 7, or >= 8 and is reported in terms of the NOAA G scale. K-index Warnings are issued when NOAA estimated Kp-indices of 4, 5, 6, and 7 or greater are expected. K-index Alerts are issued when the NOAA estimated Kp-indices reach 4, 5, 6, 7, 8, or 9.


More info
Datenquelle: NOAA, Wikipedia

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