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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 30th, 2025 9:46:14 pm
Space Weather Message Code: SUM10R
- Serial Number: 869
- Issue Time: 2025 May 31 0146 UTC
- SUMMARY: 10cm Radio Burst
- Begin Time: 2025 May 30 2339 UTC
- Maximum Time: 2025 May 30 2356 UTC
- End Time: 2025 May 31 0121 UTC
- Duration: 102 minutes
- Peak Flux: 1100 sfu
- Latest Penticton Noon Flux: 157 sfu
- Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Geophysical Alert Message Issued: May 30th, 2025 8:23:09 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1416
- Issue Time: 2025 May 31 0023 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 May 30 2353 UTC
- Estimated Velocity: 1938 km/s
- Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
Geophysical Alert Message Issued: May 30th, 2025 7:59:42 pm
Space Weather Message Code: ALTXMF
- Serial Number: 485
- Issue Time: 2025 May 30 2359 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2025 May 30 2359 UTC
- NOAA Scale: R2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
Geophysical Alert Message Issued: May 30th, 2025 6:10:30 pm
Space Weather Message Code: WARK04
- Serial Number: 4979
- Issue Time: 2025 May 30 2210 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4978
- Valid From: 2025 May 28 1747 UTC
- Now Valid Until: 2025 May 31 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: May 30th, 2025 1:43:35 pm
Space Weather Message Code: WARK05
- Serial Number: 2050
- Issue Time: 2025 May 30 1743 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2049
- Valid From: 2025 May 29 0113 UTC
- Now Valid Until: 2025 May 31 0300 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 30th, 2025 7:52:07 am
Space Weather Message Code: ALTEF3
- Serial Number: 3472
- Issue Time: 2025 May 30 1152 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3471
- Begin Time: 2025 May 30 0155 UTC
- Yesterday Maximum 2MeV Flux: pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: May 30th, 2025 7:42:47 am
Space Weather Message Code: WARK05
- Serial Number: 2049
- Issue Time: 2025 May 30 1142 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2048
- Valid From: 2025 May 29 0113 UTC
- Now Valid Until: 2025 May 30 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 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 30th, 2025 2:29:39 am
Space Weather Message Code: ALTTP2
- Serial Number: 1415
- Issue Time: 2025 May 30 0629 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 May 30 0612 UTC
- Estimated Velocity: 538 km/s
- Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
Geophysical Alert Message Issued: May 29th, 2025 10:12:06 pm
Space Weather Message Code: ALTEF3
- Serial Number: 3471
- Issue Time: 2025 May 30 0212 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2025 May 30 0155 UTC
- Station: GOES-19
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: May 29th, 2025 10:02:11 pm
Space Weather Message Code: ALTK05
- Serial Number: 1782
- Issue Time: 2025 May 30 0202 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 May 30 0155 UTC
- Synoptic Period: 0000-0300 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.
