Space Environment Alert
Issued by NWS

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ALTPX2

Space Weather Message Code: ALTPX2
Serial Number: 57
Issue Time: 2014 Sep 12 1556 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2014 Sep 12 1550 UTC
NOAA Scale: S2 - Moderate
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



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