####018000814####
WOXX32 KWNP 110221

ALTPX2



Space Weather Message Code: ALTPX2

Serial Number: 66

Issue Time: 2024 Feb 11 0219 UTC



ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu

Begin Time: 2024 Feb 11 0210 UTC

NOAA Scale: S2 - Moderate

www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience small, increased radiation exposures.

Spacecraft - Infrequent single-event upsets to satellites are possible.

Radio - Small effects on polar HF (high frequency) 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