


Space Weather Message
Issued by NWS
Issued by NWS
646 WOXX01 KWNP 161016 SUMXM5 Space Weather Message Code: SUMXM5 Serial Number: 294 Issue Time: 2025 Jun 16 1013 UTC SUMMARY: X-ray Event exceeded M5 Begin Time: 2025 Jun 16 0917 UTC Maximum Time: 2025 Jun 16 0938 UTC End Time: 2025 Jun 16 0948 UTC X-ray Class: M6.5 Location: N18E06 NOAA Scale: R2 - Moderate 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. # 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