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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 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.
Geophysical Alert Message Issued: May 14th, 2025 7:36:18 am
Space Weather Message Code: SUMXM5
- Serial Number: 289
- Issue Time: 2025 May 14 1136 UTC
- SUMMARY: X-ray Event exceeded M5
- Begin Time: 2025 May 14 1104 UTC
- Maximum Time: 2025 May 14 1119 UTC
- End Time: 2025 May 14 1131 UTC
- X-ray Class: M7
- Optical Class: na
- Location: N15E58
- 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 primarily on sub-solar point on the sunlit side of Earth.
- Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
Geophysical Alert Message Issued: May 14th, 2025 7:17:32 am
Space Weather Message Code: ALTXMF
- Serial Number: 482
- Issue Time: 2025 May 14 1117 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2025 May 14 1115 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 14th, 2025 4:39:47 am
Space Weather Message Code: SUMX01
- Serial Number: 193
- Issue Time: 2025 May 14 0839 UTC
- SUMMARY: X-ray Event exceeded X1
- Begin Time: 2025 May 14 0804 UTC
- Maximum Time: 2025 May 14 0825 UTC
- End Time: 2025 May 14 0831 UTC
- X-ray Class: X2.7
- Optical Class: 2b
- Location: N15E60
- NOAA Scale: R3 - Strong
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
- Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Geophysical Alert Message Issued: May 14th, 2025 4:30:40 am
Space Weather Message Code: SUM10R
- Serial Number: 865
- Issue Time: 2025 May 14 0830 UTC
- SUMMARY: 10cm Radio Burst
- Begin Time: 2025 May 14 0817 UTC
- Maximum Time: 2025 May 14 0818 UTC
- End Time: 2025 May 14 0818 UTC
- Duration: 1 minutes
- Peak Flux: 390 sfu
- Latest Penticton Noon Flux: 117 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 14th, 2025 4:19:46 am
Space Weather Message Code: ALTXMF
- Serial Number: 481
- Issue Time: 2025 May 14 0819 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2025 May 14 0817 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 14th, 2025 12:20:23 am
Space Weather Message Code: ALTTP2
- Serial Number: 1413
- Issue Time: 2025 May 14 0420 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 May 14 0323 UTC
- Estimated Velocity: 238 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 13th, 2025 11:25:24 pm
Space Weather Message Code: ALTXMF
- Serial Number: 480
- Issue Time: 2025 May 14 0325 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2025 May 14 0323 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 13th, 2025 11:45:42 pm
Space Weather Message Code: SUMXM5
- Serial Number: 288
- Issue Time: 2025 May 14 0345 UTC
- SUMMARY: X-ray Event exceeded M5
- Begin Time: 2025 May 14 0305 UTC
- Maximum Time: 2025 May 14 0325 UTC
- End Time: 2025 May 14 0335 UTC
- X-ray Class: M5.3
- Location: N17E65
- 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 primarily on sub-solar point on the sunlit side of Earth.
- Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
