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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 19th, 2025 12:03:14 pm
Space Weather Message Code: WATA20
- Serial Number: 1065
- Issue Time: 2025 Sep 19 1603 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Sep 20: None (Below G1) Sep 21: None (Below G1) Sep 22: G1 (Minor)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- 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 19th, 2025 12:59:57 am
Space Weather Message Code: ALTEF3
- Serial Number: 3528
- Issue Time: 2025 Sep 19 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3527
- Begin Time: 2025 Sep 16 1100 UTC
- Yesterday Maximum 2MeV Flux: 6214 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Sep 18th, 2025 12:59:30 am
Space Weather Message Code: ALTEF3
- Serial Number: 3527
- Issue Time: 2025 Sep 18 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3526
- Begin Time: 2025 Sep 16 1100 UTC
- Yesterday Maximum 2MeV Flux: 4335 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Sep 17th, 2025 10:55:56 am
Space Weather Message Code: WARK04
- Serial Number: 5083
- Issue Time: 2025 Sep 17 1455 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5082
- Valid From: 2025 Sep 14 2015 UTC
- Now Valid Until: 2025 Sep 14 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 17th, 2025 12:59:33 am
Space Weather Message Code: ALTEF3
- Serial Number: 3526
- Issue Time: 2025 Sep 17 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3525
- Begin Time: 2025 Sep 16 1100 UTC
- Yesterday Maximum 2MeV Flux: 3347 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Sep 16th, 2025 4:40:43 pm
Space Weather Message Code: WARK04
- Serial Number: 5082
- Issue Time: 2025 Sep 16 2040 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5081
- Valid From: 2025 Sep 14 2015 UTC
- Now Valid Until: 2025 Sep 17 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: Sep 16th, 2025 7:55:00 am
Space Weather Message Code: WARK04
- Serial Number: 5081
- Issue Time: 2025 Sep 16 1155 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5080
- Valid From: 2025 Sep 14 2015 UTC
- Now Valid Until: 2025 Sep 16 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 16th, 2025 7:20:01 am
Space Weather Message Code: ALTEF3
- Serial Number: 3525
- Issue Time: 2025 Sep 16 1120 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2025 Sep 16 1100 UTC
- Station: GOES19
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Sep 15th, 2025 10:39:56 pm
Space Weather Message Code: ALTK05
- Serial Number: 1853
- Issue Time: 2025 Sep 16 0239 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Sep 16 0235 UTC
- Synoptic Period: 0000-0300 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: Sep 15th, 2025 6:41:24 pm
Space Weather Message Code: WARK04
- Serial Number: 5080
- Issue Time: 2025 Sep 15 2241 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5079
- Valid From: 2025 Sep 14 2015 UTC
- Now Valid Until: 2025 Sep 16 1200 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.
