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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: Mar 24th, 2025 11:20:00 pm
Space Weather Message Code: WARK04
- Serial Number: 4887
- Issue Time: 2025 Mar 25 0320 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Mar 25 0330 UTC
- Valid To: 2025 Mar 25 1530 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: Mar 24th, 2025 7:07:58 am
Space Weather Message Code: WATA30
- Serial Number: 247
- Issue Time: 2025 Mar 24 1107 UTC
- WATCH: Geomagnetic Storm Category G2 Predicted
- Highest Storm Level Predicted by Day:
- Mar 24: G1 (Minor) Mar 25: G2 (Moderate) Mar 26: 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 55 degrees Geomagnetic Latitude.
- Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
- Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
- Radio - HF (high frequency) radio propagation can fade at higher latitudes.
- Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.
Geophysical Alert Message Issued: Mar 24th, 2025 12:11:36 am
Space Weather Message Code: WARK05
- Serial Number: 1999
- Issue Time: 2025 Mar 24 0411 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Mar 24 0410 UTC
- Valid To: 2025 Mar 24 1500 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: Mar 23rd, 2025 8:57:08 pm
Space Weather Message Code: SUMSUD
- Serial Number: 285
- Issue Time: 2025 Mar 24 0057 UTC
- SUMMARY: Geomagnetic Sudden Impulse
- Observed: 2025 Mar 24 0038 UTC
- Deviation: 15 nT
- Station: NGK
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
Geophysical Alert Message Issued: Mar 23rd, 2025 9:29:52 pm
Space Weather Message Code: WARK04
- Serial Number: 4886
- Issue Time: 2025 Mar 24 0129 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Mar 24 0129 UTC
- Valid To: 2025 Mar 24 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: Mar 23rd, 2025 10:35:52 pm
Space Weather Message Code: ALTK04
- Serial Number: 2538
- Issue Time: 2025 Mar 24 0235 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Mar 24 0233 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: Mar 23rd, 2025 8:28:17 pm
Space Weather Message Code: WARSUD
- Serial Number: 241
- Issue Time: 2025 Mar 24 0028 UTC
- WARNING: Geomagnetic Sudden Impulse expected
- Valid From: 2025 Mar 24 0030 UTC
- Valid To: 2025 Mar 24 0130 UTC
- IP Shock Passage Observed: 2025 Mar 24 0017 UTC
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
Geophysical Alert Message Issued: Mar 22nd, 2025 7:37:47 pm
Space Weather Message Code: ALTK05
- Serial Number: 1725
- Issue Time: 2025 Mar 22 2337 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 22 2337 UTC
- Synoptic Period: 2100-2400 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: Mar 22nd, 2025 7:05:26 pm
Space Weather Message Code: WARK04
- Serial Number: 4885
- Issue Time: 2025 Mar 22 2305 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4884
- Valid From: 2025 Mar 21 1715 UTC
- Now Valid Until: 2025 Mar 23 2359 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: Mar 22nd, 2025 12:49:28 pm
Space Weather Message Code: WARK04
- Serial Number: 4884
- Issue Time: 2025 Mar 22 1649 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4883
- Valid From: 2025 Mar 21 1715 UTC
- Now Valid Until: 2025 Mar 22 2359 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.
