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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 16th, 2025 7:36:27 pm
Space Weather Message Code: ALTK04
- Serial Number: 2560
- Issue Time: 2025 May 16 2336 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 May 16 2331 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 16th, 2025 6:56:44 pm
Space Weather Message Code: WARK04
- Serial Number: 4967
- Issue Time: 2025 May 16 2256 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 May 16 2255 UTC
- Valid To: 2025 May 17 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: May 16th, 2025 3:00:57 pm
Space Weather Message Code: WATA20
- Serial Number: 1041
- Issue Time: 2025 May 16 1900 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- May 17: None (Below G1) May 18: G1 (Minor) May 19: G1 (Minor)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment: Coronal Hole High Speed Stream influences will likely lead to G1 storm potential 18-19 May.
- 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 16th, 2025 3:42:47 am
Space Weather Message Code: WARK04
- Serial Number: 4966
- Issue Time: 2025 May 16 0742 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 May 16 0742 UTC
- Valid To: 2025 May 16 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 15th, 2025 6:52:51 pm
Space Weather Message Code: WATA20
- Serial Number: 1040
- Issue Time: 2025 May 15 2252 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- May 16: None (Below G1) May 17: None (Below G1) May 18: 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: May 15th, 2025 1:09:27 am
Space Weather Message Code: WARK05
- Serial Number: 2042
- Issue Time: 2025 May 15 0509 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 May 15 0508 UTC
- Valid To: 2025 May 15 1200 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 14th, 2025 11:49:36 pm
Space Weather Message Code: ALTK04
- Serial Number: 2559
- Issue Time: 2025 May 15 0349 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 May 15 0345 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: May 14th, 2025 11:33:21 pm
Space Weather Message Code: WARK04
- Serial Number: 4964
- Issue Time: 2025 May 15 0333 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 May 15 0332 UTC
- Valid To: 2025 May 15 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: May 14th, 2025 2:03:00 pm
Space Weather Message Code: WARK04
- Serial Number: 4963
- Issue Time: 2025 May 14 1803 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 May 14 1730 UTC
- Valid To: 2025 May 15 0000 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 14th, 2025 2:03:36 pm
Space Weather Message Code: ALTK04
- Serial Number: 2558
- Issue Time: 2025 May 14 1803 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 May 14 1755 UTC
- Synoptic Period: 1500-1800 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.
