ALERT: Proton Event 100 MeV Integral Flux exceeded 1 pfu

Space Weather Message Code: ALTPC0 Serial Number: 39 Issue Time: 2013 May 22 1503 UTC ALERT: Proton Event 100MeV Integral Flux exceeded 1pfu Begin Time: 2013 May 22 1455 UTC NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/NOAAscales Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.