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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 26th, 2026 8:35:26 pm
Space Weather Message Code: WARK04
- Serial Number: 5423
- Issue Time: 2026 Sep 27 0035 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Sep 27 0033 UTC
- Valid To: 2026 Sep 27 1200 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 26th, 2026 11:51:34 am
Space Weather Message Code: ALTEF3
- Serial Number: 3745
- Issue Time: 2026 Sep 26 1551 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1,000pfu
- Threshold Reached: 2026 Sep 26 1535 UTC
- Station: GOES-19
- Comment:
Geophysical Alert Message Issued: Sep 25th, 2026 5:55:03 pm
Space Weather Message Code: WARK04
- Serial Number: 5422
- Issue Time: 2026 Sep 25 2155 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Sep 25 2154 UTC
- Valid To: 2026 Sep 26 1200 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 25th, 2026 5:58:25 pm
Space Weather Message Code: ALTK04
- Serial Number: 2687
- Issue Time: 2026 Sep 25 2158 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Sep 25 2158 UTC
- Synoptic Period: 2100-2400
- 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 25th, 2026 4:35:43 am
Space Weather Message Code: WARK05
- Serial Number: 2266
- Issue Time: 2026 Sep 25 0835 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Sep 25 0835 UTC
- Valid To: 2026 Sep 25 1200 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 24th, 2026 11:00:15 pm
Space Weather Message Code: ALTK04
- Serial Number: 2686
- Issue Time: 2026 Sep 25 0300 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Sep 25 0257 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 24th, 2026 10:26:55 pm
Space Weather Message Code: WARK04
- Serial Number: 5421
- Issue Time: 2026 Sep 25 0226 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Sep 25 0226 UTC
- Valid To: 2026 Sep 25 1800 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 24th, 2026 10:30:01 am
Space Weather Message Code: WARK04
- Serial Number: 5420
- Issue Time: 2026 Sep 24 1430 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5419
- Valid From: 2026 Sep 24 0944 UTC
- Now Valid Until: 2026 Sep 24 2100 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 24th, 2026 5:52:18 am
Space Weather Message Code: ALTK04
- Serial Number: 2685
- Issue Time: 2026 Sep 24 0952 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Sep 24 0945 UTC
- Synoptic Period: 0900-1200
- 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 24th, 2026 5:45:24 am
Space Weather Message Code: WARK04
- Serial Number: 5419
- Issue Time: 2026 Sep 24 0945 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Sep 24 0944 UTC
- Valid To: 2026 Sep 24 1500 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.
