[Scan-DC] Solar Flare now an X20

Cathy Drzyzgula [email protected]
Wed, 05 Nov 2003 17:57:00 -0500



**** EXTREME SOLAR FLARE ****
Powerful Active Region 486 has produced one of the most intense solar 
flares ever measured. The event began at 12:29 P.M. MST (1929 UTC) on 
November 4th and rose quickly to exceed X17 on the GOES-12 X-ray sensor. By 
12:44 P.M. MST (1944 UTC), the GOES sensor was saturated and remained that 
way until 12:56 P.M. (1956 UTC), suggesting this event extended well in to 
the very highest flare category, the X20 plus range. This massive flare 
produced a category R5 (extreme) radio blackout. All short-wave 
communications through the sunlit hemisphere of the Earth experienced 
complete blackout conditions.


Heres some info to make up for my misinformation earlier.  And its even 
radio related.  For the complete report see:
http://www.sel.noaa.gov/advisories/bulletins.html

Cathy