Space Environment Alert
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2
000
WOXX01 KWNP 200026
ALTXMF

Space Weather Message Code: ALTXMF
Serial Number: 247
Issue Time: 2014 Dec 20 0022 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2014 Dec 20 0020 UTC
NOAA Scale: R2 - Moderate
www.swpc.noaa.gov/noaa-scales-explanation
Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

# 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



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.