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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 9th, 2025 6:40:30 pm
Space Weather Message Code: WARK05
- Serial Number: 2095
- Issue Time: 2025 Sep 09 2240 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Sep 09 2240 UTC
- Valid To: 2025 Sep 10 0600 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: Sep 9th, 2025 6:01:25 pm
Space Weather Message Code: WARK04
- Serial Number: 5075
- Issue Time: 2025 Sep 09 2201 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Sep 09 2100 UTC
- Valid To: 2025 Sep 10 1200 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: Sep 9th, 2025 6:02:08 pm
Space Weather Message Code: ALTK04
- Serial Number: 2589
- Issue Time: 2025 Sep 09 2202 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Sep 09 2154 UTC
- Synoptic Period: 2100-2400 UTC
- Active Warning: Yes
- 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 9th, 2025 10:31:10 am
Space Weather Message Code: ALTEF3
- Serial Number: 3522
- Issue Time: 2025 Sep 09 1431 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2025 Sep 09 1420 UTC
- Station: GOES19
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Sep 9th, 2025 4:55:44 am
Space Weather Message Code: WARK04
- Serial Number: 5074
- Issue Time: 2025 Sep 09 0855 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5073
- Valid From: 2025 Sep 09 0210 UTC
- Now Valid Until: 2025 Sep 09 1500 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: Sep 8th, 2025 10:10:30 pm
Space Weather Message Code: WARK04
- Serial Number: 5073
- Issue Time: 2025 Sep 09 0210 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Sep 09 0210 UTC
- Valid To: 2025 Sep 09 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: Sep 8th, 2025 1:08:43 am
Space Weather Message Code: ALTK04
- Serial Number: 2588
- Issue Time: 2025 Sep 08 0508 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Sep 08 0508 UTC
- Synoptic Period: 0300-0600 UTC
- Active Warning: Yes
- 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 7th, 2025 9:29:41 pm
Space Weather Message Code: WARK04
- Serial Number: 5072
- Issue Time: 2025 Sep 08 0129 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Sep 08 0130 UTC
- Valid To: 2025 Sep 08 2359 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: Sep 7th, 2025 2:01:52 pm
Space Weather Message Code: WATA20
- Serial Number: 1061
- Issue Time: 2025 Sep 07 1801 UTC
- CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
- Cancel Serial Number: 1060
- Original Issue Time: 2025 Sep 05 2112 UTC
- Comment: Minor geomagnetic storm conditions are no longer expected to occur through the remainder of 07 Sep.
- 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 6th, 2025 6:28:49 pm
Space Weather Message Code: WARK04
- Serial Number: 5071
- Issue Time: 2025 Sep 06 2228 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5070
- Valid From: 2025 Sep 06 0235 UTC
- Now Valid Until: 2025 Sep 07 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.
