WOXX32 KWNP 132131 WARPX1 Space Weather Message Code: WARPX1 Serial Number: 559 Issue Time: 2024 May 13 2127 UTC EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected Extension to Serial Number: 558 Valid From: 2024 May 13 1328 UTC Now Valid Until: 2024 May 14 2359 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