[SFDXA] Long Duration Solar Flare

[Bill]

*LONG-DURATION SOLAR FLARE:*Growing sunspot AR3032 exploded on June 13th 
(0407 UT), producing anM3-class 
<https://www.spaceweather.com/glossary/flareclasses.html>solar flare 
that lasted more than 3 hours. NASA's Solar Dynamics Observatory 
recorded the slow-motion blast:

Extreme ultraviolet radiation from the flare caused a shortwave radio 
blackout over Japan and southeast Asia, affecting frequencies below 30 
MHz:blackout map 
<https://www.spaceweather.com/images2022/13jun22/mflare_strip_opt.gif>. 
Also, the explosion probably hurled a CME into space. The US Air Force 
detected aType II solar radio burst 
<https://www.atnf.csiro.au/pasa/17_1/cairns/paper/node5.html>, which is 
usually caused by shock waves in the leading edge of a CME. Confirmation 
awaits fresh data from SOHO coronagraphs Stay tuned.*Solar flare 
alerts:*SMS Text <https://spaceweatheralerts.com/>.

Spaceweather.com
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