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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: Jun 19th, 2025 7:58:01 pm
Space Weather Message Code: SUM10R
- Serial Number: 876
- Issue Time: 2025 Jun 19 2358 UTC
- SUMMARY: 10cm Radio Burst
- Begin Time: 2025 Jun 19 2346 UTC
- Maximum Time: 2025 Jun 19 2347 UTC
- End Time: 2025 Jun 19 2347 UTC
- Duration: 1 minutes
- Peak Flux: 250 sfu
- Latest Penticton Noon Flux: 137 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: Jun 19th, 2025 7:48:39 pm
Space Weather Message Code: ALTXMF
- Serial Number: 490
- Issue Time: 2025 Jun 19 2348 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2025 Jun 19 2347 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: Jun 19th, 2025 4:42:13 pm
Space Weather Message Code: ALTK04
- Serial Number: 2568
- Issue Time: 2025 Jun 19 2042 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Jun 19 2038 UTC
- Synoptic Period: 1800-2100 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: Jun 19th, 2025 3:14:22 pm
Space Weather Message Code: WARK04
- Serial Number: 5007
- Issue Time: 2025 Jun 19 1914 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Jun 19 1912 UTC
- Valid To: 2025 Jun 20 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: Jun 18th, 2025 7:29:32 pm
Space Weather Message Code: WARK04
- Serial Number: 5006
- Issue Time: 2025 Jun 18 2329 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Jun 18 2329 UTC
- Valid To: 2025 Jun 19 0600 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: Jun 18th, 2025 7:33:39 pm
Space Weather Message Code: ALTK04
- Serial Number: 2567
- Issue Time: 2025 Jun 18 2333 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Jun 18 2327 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: Jun 18th, 2025 1:01:44 am
Space Weather Message Code: ALTTP2
- Serial Number: 1420
- Issue Time: 2025 Jun 18 0501 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 Jun 18 0434 UTC
- Estimated Velocity: 1110 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: Jun 17th, 2025 9:28:30 pm
Space Weather Message Code: WARK04
- Serial Number: 5005
- Issue Time: 2025 Jun 18 0128 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Jun 18 0128 UTC
- Valid To: 2025 Jun 18 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: Jun 17th, 2025 6:37:41 pm
Space Weather Message Code: SUM10R
- Serial Number: 875
- Issue Time: 2025 Jun 17 2237 UTC
- SUMMARY: 10cm Radio Burst
- Begin Time: 2025 Jun 17 2146 UTC
- Maximum Time: 2025 Jun 17 2147 UTC
- End Time: 2025 Jun 17 2147 UTC
- Duration: 1 minutes
- Peak Flux: 200 sfu
- Latest Penticton Noon Flux: 139 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: Jun 17th, 2025 6:04:53 pm
Space Weather Message Code: SUMX01
- Serial Number: 195
- Issue Time: 2025 Jun 17 2204 UTC
- SUMMARY: X-ray Event exceeded X1
- Begin Time: 2025 Jun 17 2138 UTC
- Maximum Time: 2025 Jun 17 2149 UTC
- End Time: 2025 Jun 17 2154 UTC
- X-ray Class: X1.2
- Optical Class: 2b
- Location: N18W10
- 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.
