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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: Oct 28th, 2025 2:42:45 pm
Space Weather Message Code: WARK04
- Serial Number: 5122
- Issue Time: 2025 Oct 28 1842 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5121
- Valid From: 2025 Oct 27 2325 UTC
- Now Valid Until: 2025 Oct 29 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: Oct 28th, 2025 11:01:26 am
Space Weather Message Code: ALTK04
- Serial Number: 2602
- Issue Time: 2025 Oct 28 1501 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Oct 28 1451 UTC
- Synoptic Period: 1200-1500 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: Oct 28th, 2025 4:55:06 am
Space Weather Message Code: WARK04
- Serial Number: 5121
- Issue Time: 2025 Oct 28 0855 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5120
- Valid From: 2025 Oct 27 2325 UTC
- Now Valid Until: 2025 Oct 28 1800 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: Oct 27th, 2025 10:53:25 pm
Space Weather Message Code: WARK04
- Serial Number: 5120
- Issue Time: 2025 Oct 28 0253 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5119
- Valid From: 2025 Oct 27 2325 UTC
- Now Valid Until: 2025 Oct 28 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: Oct 27th, 2025 8:10:02 pm
Space Weather Message Code: WATA20
- Serial Number: 1073
- Issue Time: 2025 Oct 28 0010 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Oct 28: G1 (Minor) Oct 29: G1 (Minor) Oct 30: 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: Oct 27th, 2025 7:25:19 pm
Space Weather Message Code: WARK04
- Serial Number: 5119
- Issue Time: 2025 Oct 27 2325 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Oct 27 2325 UTC
- Valid To: 2025 Oct 28 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.
Geophysical Alert Message Issued: Oct 26th, 2025 4:17:25 pm
Space Weather Message Code: WATA20
- Serial Number: 1072
- Issue Time: 2025 Oct 26 2017 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Oct 27: None (Below G1) Oct 28: G1 (Minor) Oct 29: 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: Oct 25th, 2025 4:55:17 pm
Space Weather Message Code: WATA20
- Serial Number: 1071
- Issue Time: 2025 Oct 25 2055 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Oct 26: None (Below G1) Oct 27: None (Below G1) Oct 28: 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: Oct 25th, 2025 1:57:44 am
Space Weather Message Code: ALTK04
- Serial Number: 2601
- Issue Time: 2025 Oct 25 0557 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Oct 25 0557 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: Oct 25th, 2025 1:48:56 am
Space Weather Message Code: WARK04
- Serial Number: 5118
- Issue Time: 2025 Oct 25 0548 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Oct 25 0548 UTC
- Valid To: 2025 Oct 25 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.
