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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 10th, 2025 2:06:58 am
Space Weather Message Code: WARK04
- Serial Number: 4959
- Issue Time: 2025 May 10 0606 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4958
- Valid From: 2025 May 09 1953 UTC
- Now Valid Until: 2025 May 10 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 10th, 2025 1:59:21 am
Space Weather Message Code: WARK05
- Serial Number: 2039
- Issue Time: 2025 May 10 0559 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2038
- Valid From: 2025 May 09 2348 UTC
- Now Valid Until: 2025 May 10 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 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 9th, 2025 7:48:19 pm
Space Weather Message Code: WARK05
- Serial Number: 2038
- Issue Time: 2025 May 09 2348 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 May 09 2348 UTC
- Valid To: 2025 May 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: May 9th, 2025 3:56:36 pm
Space Weather Message Code: WARK04
- Serial Number: 4958
- Issue Time: 2025 May 09 1956 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 May 09 1953 UTC
- Valid To: 2025 May 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: May 9th, 2025 3:57:19 pm
Space Weather Message Code: ALTK04
- Serial Number: 2556
- Issue Time: 2025 May 09 1957 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 May 09 1956 UTC
- Synoptic Period: 1800-2100 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: May 9th, 2025 2:42:37 am
Space Weather Message Code: ALTEF3
- Serial Number: 3463
- Issue Time: 2025 May 09 0642 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3462
- Begin Time: 2025 May 02 1330 UTC
- Yesterday Maximum 2MeV Flux: 15854 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: May 8th, 2025 6:34:16 pm
Space Weather Message Code: ALTK04
- Serial Number: 2555
- Issue Time: 2025 May 08 2234 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 May 08 2234 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: May 8th, 2025 6:24:14 pm
Space Weather Message Code: WARK04
- Serial Number: 4957
- Issue Time: 2025 May 08 2224 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 May 08 2224 UTC
- Valid To: 2025 May 09 0600 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: May 8th, 2025 12:59:27 am
Space Weather Message Code: ALTEF3
- Serial Number: 3462
- Issue Time: 2025 May 08 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3461
- Begin Time: 2025 May 02 1330 UTC
- Yesterday Maximum 2MeV Flux: 12994 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: May 7th, 2025 7:47:12 am
Space Weather Message Code: WATA20
- Serial Number: 1039
- Issue Time: 2025 May 07 1147 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- May 07: None (Below G1) May 08: None (Below G1) May 09: 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.
