P11A 2023-04-23 18:28:50.627

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O:8:”stdClass”:3:{s:2:”id”;s:4:”P11A”;s:6:”issued”;s:23:”2023-04-23 18:28:50.627″;s:7:”message”;s:436:”Space Weather Message Code: ALTPX1
Serial Number: 328
Issue Time: 2023 Apr 23 1828 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2023 Apr 23 1815 UTC
NOAA Scale: S1 – Minor

NOAA Space Weather Scale descriptions can be found at
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.”;}