


Space Environment Warning
Issued by NWS
Issued by NWS
Versions:
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435 WOXX32 KWNP 131857 WARPX1 Space Weather Message Code: WARPX1 Serial Number: 601 Issue Time: 2025 May 13 1852 UTC WARNING: Proton 10MeV Integral Flux above 10pfu expected Valid From: 2025 May 13 1930 UTC Valid To: 2025 May 14 1200 UTC Warning Condition: Onset Predicted NOAA Scale: S1 - Minor www.swpc.noaa.gov/noaa-scales-explanation Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies. # Issued by the US Dept. of Commerce, NOAA, Space Weather Prediction Center # Recent messages, data, and help at http://swpc.noaa.gov/alerts/ # Send questions to SWPC.Webmaster@noaa.gov