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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: Apr 15th, 2025 11:24:19 am
Space Weather Message Code: WATA50
- Serial Number: 86
- Issue Time: 2025 Apr 15 1524 UTC
- WATCH: Geomagnetic Storm Category G3 Predicted
- Highest Storm Level Predicted by Day:
- Apr 16: G3 (Strong) Apr 17: G1 (Minor) Apr 18: 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 50 degrees Geomagnetic Latitude.
- Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
- Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
- Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
- Radio - HF (high frequency) radio may be intermittent.
- Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Geophysical Alert Message Issued: Apr 15th, 2025 7:16:58 am
Space Weather Message Code: ALTEF3
- Serial Number: 3454
- Issue Time: 2025 Apr 15 1116 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3453
- Begin Time: 2025 Apr 05 1225 UTC
- Yesterday Maximum 2MeV Flux: 1464 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Apr 14th, 2025 7:01:07 pm
Space Weather Message Code: WARK04
- Serial Number: 4924
- Issue Time: 2025 Apr 14 2301 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Apr 14 2300 UTC
- Valid To: 2025 Apr 15 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 14th, 2025 7:02:50 pm
Space Weather Message Code: ALTK04
- Serial Number: 2546
- Issue Time: 2025 Apr 14 2302 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Apr 14 2301 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: Apr 14th, 2025 4:56:32 am
Space Weather Message Code: WARK04
- Serial Number: 4923
- Issue Time: 2025 Apr 14 0856 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4922
- Valid From: 2025 Apr 14 0031 UTC
- Now Valid Until: 2025 Apr 14 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 14th, 2025 1:12:07 am
Space Weather Message Code: ALTEF3
- Serial Number: 3453
- Issue Time: 2025 Apr 14 0512 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3452
- Begin Time: 2025 Apr 05 1225 UTC
- Yesterday Maximum 2MeV Flux: 1150 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Apr 14th, 2025 12:41:42 am
Space Weather Message Code: WARK05
- Serial Number: 2018
- Issue Time: 2025 Apr 14 0441 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Apr 14 0441 UTC
- Valid To: 2025 Apr 14 0900 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: Apr 14th, 2025 12:39:00 am
Space Weather Message Code: ALTK04
- Serial Number: 2545
- Issue Time: 2025 Apr 14 0439 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Apr 14 0429 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 13th, 2025 8:33:03 pm
Space Weather Message Code: WARK04
- Serial Number: 4922
- Issue Time: 2025 Apr 14 0033 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Apr 14 0031 UTC
- Valid To: 2025 Apr 14 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: Apr 13th, 2025 5:20:28 pm
Space Weather Message Code: ALTEF3
- Serial Number: 3452
- Issue Time: 2025 Apr 13 2120 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3451
- Begin Time: 2025 Apr 05 1225 UTC
- Yesterday Maximum 2MeV Flux: 2657 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
