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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 6th, 2025 12:45:11 pm
Space Weather Message Code: ALTK05
- Serial Number: 1846
- Issue Time: 2025 Sep 06 1645 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Sep 06 1642 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: Sep 6th, 2025 11:29:11 am
Space Weather Message Code: WARK05
- Serial Number: 2094
- Issue Time: 2025 Sep 06 1529 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Sep 06 1530 UTC
- Valid To: 2025 Sep 06 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: Sep 5th, 2025 10:41:26 pm
Space Weather Message Code: ALTK04
- Serial Number: 2587
- Issue Time: 2025 Sep 06 0241 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Sep 06 0240 UTC
- Synoptic Period: 0000-0300 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 5th, 2025 10:34:35 pm
Space Weather Message Code: WARK04
- Serial Number: 5070
- Issue Time: 2025 Sep 06 0234 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Sep 06 0235 UTC
- Valid To: 2025 Sep 06 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 5th, 2025 5:12:52 pm
Space Weather Message Code: WATA20
- Serial Number: 1060
- Issue Time: 2025 Sep 05 2112 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Sep 05: G1 (Minor) Sep 06: G1 (Minor) Sep 07: 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 4th, 2025 3:17:31 pm
Space Weather Message Code: WATA20
- Serial Number: 1059
- Issue Time: 2025 Sep 04 1917 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Sep 05: G1 (Minor) Sep 06: G1 (Minor) Sep 07: None (Below G1)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment: G1 (Minor) geomagnetic storming due to recurrent positive polarity coronal hole high speed stream effects is ikely by late on the 05 Sep UTC day and continuing into 06 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 3rd, 2025 4:59:03 pm
Space Weather Message Code: WATA20
- Serial Number: 1058
- Issue Time: 2025 Sep 03 2059 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Sep 04: None (Below G1) Sep 05: None (Below G1) Sep 06: G1 (Minor)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment: G1 (Minor) geomagnetic storming is likely on 06 Sep due to recurrent, positive polarity coronal hole high speed stream influences.
- 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 3rd, 2025 1:56:44 am
Space Weather Message Code: WARK05
- Serial Number: 2093
- Issue Time: 2025 Sep 03 0556 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2091
- Valid From: 2025 Sep 01 2041 UTC
- Now Valid Until: 2025 Sep 03 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 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 3rd, 2025 1:56:45 am
Space Weather Message Code: WARK04
- Serial Number: 5069
- Issue Time: 2025 Sep 03 0556 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5068
- Valid From: 2025 Sep 01 2040 UTC
- Now Valid Until: 2025 Sep 03 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 2nd, 2025 11:01:41 pm
Space Weather Message Code: ALTK05
- Serial Number: 1845
- Issue Time: 2025 Sep 03 0301 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Sep 03 0259 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.
