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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: May 1st, 2025 4:23:19 pm
Space Weather Message Code: ALTK05
- Serial Number: 1757
- Issue Time: 2025 May 01 2023 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 May 01 2022 UTC
- Synoptic Period: 1800-2100 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: May 1st, 2025 1:50:19 pm
Space Weather Message Code: WATA20
- Serial Number: 1037
- Issue Time: 2025 May 01 1750 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- May 02: G1 (Minor) May 03: None (Below G1) May 04: None (Below G1)
- 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: May 1st, 2025 9:52:03 am
Space Weather Message Code: WARK04
- Serial Number: 4944
- Issue Time: 2025 May 01 1352 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4943
- Valid From: 2025 May 01 0343 UTC
- Now Valid Until: 2025 May 02 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 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: May 1st, 2025 6:40:41 am
Space Weather Message Code: WARK04
- Serial Number: 4943
- Issue Time: 2025 May 01 1040 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4942
- Valid From: 2025 May 01 0343 UTC
- Now Valid Until: 2025 May 01 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: May 1st, 2025 1:38:29 am
Space Weather Message Code: ALTK04
- Serial Number: 2554
- Issue Time: 2025 May 01 0538 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 May 01 0532 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: Apr 30th, 2025 11:43:51 pm
Space Weather Message Code: WARK04
- Serial Number: 4942
- Issue Time: 2025 May 01 0343 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 May 01 0343 UTC
- Valid To: 2025 May 01 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: Apr 30th, 2025 7:30:52 am
Space Weather Message Code: WARK04
- Serial Number: 4941
- Issue Time: 2025 Apr 30 1130 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4940
- Valid From: 2025 Apr 30 0225 UTC
- Now Valid Until: 2025 Apr 30 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: Apr 29th, 2025 11:00:30 pm
Space Weather Message Code: ALTK04
- Serial Number: 2553
- Issue Time: 2025 Apr 30 0300 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Apr 30 0259 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: Apr 29th, 2025 10:25:26 pm
Space Weather Message Code: WARK04
- Serial Number: 4940
- Issue Time: 2025 Apr 30 0225 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Apr 30 0225 UTC
- Valid To: 2025 Apr 30 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: Apr 27th, 2025 12:32:51 pm
Space Weather Message Code: ALTEF3
- Serial Number: 3455
- Issue Time: 2025 Apr 27 1632 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2025 Apr 27 1605 UTC
- Station: GOES-19
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
