WOXX32 KWNP 261931 ALTPX1 Space Weather Message Code: ALTPX1 Serial Number: 353 Issue Time: 2024 Oct 26 1929 UTC ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu Begin Time: 2024 Oct 26 1910 UTC 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