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Having SatCom problems?
A burst of radiation on the sun's surface may trigger a geomagnetic storm, which can disrupt satellite communications.
In order to prevent unnecessary maintenance on satellite communications systems Air Sat One has provided a feed of Geophysical Events from NOAA's Space Weather Prediction Center. Check here to see if solar activity could be a cause of satellite communications problems.
Geophysical Alert Message Issued: Sep 16th, 2026 1:38:03 am
Space Weather Message Code: WARK04
- Serial Number: 5418
- Issue Time: 2026 Sep 16 0538 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5417
- Valid From: 2026 Sep 15 1849 UTC
- Now Valid Until: 2026 Sep 16 1800 UTC
- Warning Condition: Persistence
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- 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.
Geophysical Alert Message Issued: Sep 15th, 2026 8:34:08 pm
Space Weather Message Code: ALTK04
- Serial Number: 2684
- Issue Time: 2026 Sep 16 0034 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Sep 16 0030 UTC
- Synoptic Period: 0000-0300
- Active Warning: YES
- Comment:
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- 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.
Geophysical Alert Message Issued: Sep 15th, 2026 2:56:11 pm
Space Weather Message Code: WARK05
- Serial Number: 2265
- Issue Time: 2026 Sep 15 1856 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Sep 15 1855 UTC
- Valid To: 2026 Sep 16 0600 UTC
- Warning Conditions: Onset
- Noaa Scale: G1 - Minor
- Comment:
- NOAA Scale: G1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- 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.
Geophysical Alert Message Issued: Sep 15th, 2026 2:50:25 pm
Space Weather Message Code: WARK04
- Serial Number: 5417
- Issue Time: 2026 Sep 15 1850 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Sep 15 1849 UTC
- Valid To: 2026 Sep 16 0600 UTC
- Warning Conditions: Onset
- Comment:
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- 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.
Geophysical Alert Message Issued: Sep 15th, 2026 1:37:51 pm
Space Weather Message Code: WATA20
- Serial Number: 1125
- Issue Time: 2026 Sep 15 1737 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Sep 16: G1 (Minor) Sep 17: G1 (Minor) Sep 18: None (Below G1)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment:
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- 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.
Geophysical Alert Message Issued: Sep 14th, 2026 2:02:37 pm
Space Weather Message Code: ALTK04
- Serial Number: 2683
- Issue Time: 2026 Sep 14 1802 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Sep 14 1743 UTC
- Synoptic Period: 1500-1800
- Active Warning: YES
- Comment:
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- 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.
Geophysical Alert Message Issued: Sep 14th, 2026 12:54:02 pm
Space Weather Message Code: WARK04
- Serial Number: 5416
- Issue Time: 2026 Sep 14 1654 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Sep 14 1653 UTC
- Valid To: 2026 Sep 14 2349 UTC
- Warning Conditions: Onset
- Comment:
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- 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.
Geophysical Alert Message Issued: Sep 14th, 2026 11:47:26 am
Space Weather Message Code: WATA20
- Serial Number: 1124
- Issue Time: 2026 Sep 14 1547 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Sep 15: G1 (Minor) Sep 16: G1 (Minor) Sep 17: None (Below G1)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment:
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- 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.
Geophysical Alert Message Issued: Sep 14th, 2026 7:03:04 am
Space Weather Message Code: ALTEF3
- Serial Number: 3744
- Issue Time: 2026 Sep 14 1103 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Continuation of Serial Number: 3743
- Begin Time: 2026 Sep 10 1304 UTC
- Yesterday Maximum 2MeV Flux: 1827 pfu
- Max time: 2026 Sep 13 1800 UTC
Geophysical Alert Message Issued: Sep 13th, 2026 4:27:29 am
Space Weather Message Code: ALTEF3
- Serial Number: 3743
- Issue Time: 2026 Sep 13 0827 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Continuation of Serial Number: 3742
- Begin Time: 2026 Sep 10 1304 UTC
- Yesterday Maximum 2MeV Flux: 1828 pfu
- Max time: 2026 Sep 12 1615 UTC
