Space Weather Message Code: ALTXMF
Serial Number: 253
Issue Time: 2015 Mar 11 1619 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2015 Mar 11 1617 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
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.

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