NOAA SWPC Space Weather Message: X-Ray Event exceeded X1 (R3)

Space Weather Message Code: SUMX01
Serial Number: 78
Issue Time: 2012 Mar 07 0057 UTC

SUMMARY: X-ray Event exceeded X1
Begin Time: 2012 Mar 07 0002 UTC
Maximum Time: 2012 Mar 07 0024 UTC
End Time: 2012 Mar 07 0040 UTC
X-ray Class: X5.4
Location: N17E29
NOAA Scale: R3 – Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/NOAAscales

Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.

Radio – Wide area blackout of HF (high frequency) radio communication for about an hour.