X-Flare!
From Presto Alert:
http://www.sidc.be/products/presto/Latest issue
:Issued: 2011 Nov 03 2042 UTC
roduct: documentation at http://www.sidc.be/products/presto
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# FAST WARNING 'PRESTO' MESSAGE from the SIDC (RWC-Belgium) #
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The GOES X-ray monitor just observed an X1.9 flare peaking at 20:27 UT.
No image data is available at the moment, but giving its high level of
activity during the past 24h, the source region of this flare was
probably NOAA AR 11339. We expect more flaring at M- or X-class level
from this region.
Spaceweather.com:
X-FLARE: Big sunspot AR1339 (described below) unleashed an X2-class solar flare on Nov. 3rd at 2027 UT. A movie from the Solar Dynamics Observatory shows the extreme ultaviolet flash. The flare created waves of ionization in Earth's upper atmosphere, altering the normal progagation of radio waves over Europe and the Americas. Stay tuned for updates