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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: Mar 25th, 2026 4:06:01 am
Space Weather Message Code: WARK04
- Serial Number: 5299
- Issue Time: 2026 Mar 25 0806 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5298
- Valid From: 2026 Mar 25 0440 UTC
- Now Valid Until: 2025 Mar 26 1500 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: Mar 25th, 2026 12:59:21 am
Space Weather Message Code: ALTEF3
- Serial Number: 3656
- Issue Time: 2026 Mar 25 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3655
- Begin Time: 2026 Mar 22 1430 UTC
- Yesterday Maximum 2MeV Flux: 11907 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Mar 25th, 2026 12:40:29 am
Space Weather Message Code: WARK04
- Serial Number: 5298
- Issue Time: 2026 Mar 25 0440 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Mar 25 0440 UTC
- Valid To: 2026 Mar 25 0900 UTC
- Warning Condition: Onset
- 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: Mar 24th, 2026 1:00:10 am
Space Weather Message Code: ALTEF3
- Serial Number: 3655
- Issue Time: 2026 Mar 24 0500 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3654
- Begin Time: 2026 Mar 22 1430 UTC
- Yesterday Maximum 2MeV Flux: 8285 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Mar 24th, 2026 12:20:30 am
Space Weather Message Code: WARK04
- Serial Number: 5297
- Issue Time: 2026 Mar 24 0420 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5296
- Valid From: 2026 Mar 23 1410 UTC
- Now Valid Until: 2026 Mar 24 2359 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: Mar 23rd, 2026 4:58:30 pm
Space Weather Message Code: WARK05
- Serial Number: 2215
- Issue Time: 2026 Mar 23 2058 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2214
- Valid From: 2026 Mar 23 1440 UTC
- Now Valid Until: 2026 Mar 24 0600 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 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: Mar 23rd, 2026 1:52:12 pm
Space Weather Message Code: ALTK05
- Serial Number: 1994
- Issue Time: 2026 Mar 23 1752 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Mar 23 1750 UTC
- Synoptic Period: 1500-1800 UTC
- Active Warning: Yes
- 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: Mar 23rd, 2026 11:00:56 am
Space Weather Message Code: ALTK05
- Serial Number: 1993
- Issue Time: 2026 Mar 23 1500 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Mar 23 1459 UTC
- Synoptic Period: 1200-1500 UTC
- Active Warning: Yes
- 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: Mar 23rd, 2026 10:41:41 am
Space Weather Message Code: WARK05
- Serial Number: 2214
- Issue Time: 2026 Mar 23 1441 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Mar 23 1440 UTC
- Valid To: 2026 Mar 23 2359 UTC
- Warning Condition: Onset
- 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: Mar 23rd, 2026 10:13:52 am
Space Weather Message Code: WARK04
- Serial Number: 5295
- Issue Time: 2026 Mar 23 1413 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Mar 23 1410 UTC
- Valid To: 2026 Mar 24 0300 UTC
- Warning Condition: Onset
- 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.
