Monday, May 7, 2012

LDE M1.9 Flare From Sunspots 1470 & 1471 Combo

   We just had a LDE (long duration event) M1.9 Solar Flare peaking @ 14:31 UTC Monday May 7. This LDE flare was a result of a two punch combo from sunspots 1470 & 1471 located on the southwest area of the solar disk. CME's are often the result of a LDE event and so will be watching for signs of a CME produced in association with this event.

Check back soon for updates as more data becomes available.

   We can now see on STEREO A the 1st signs that there was indeed a CME produced in association with this LDE M1.9 Flare. Sadly, STEREO A has stopped updating. We will keep a close watch on STEREO A for any updated images.

   Now it would appear that we have lost data from STEREO B
With SOHO LASCO still not working, this leaves us with STEOREO A. STEREO A still has not updates since 14:54 UTC.

CME Update:

TWO INCOMING CMEs: A pair of solar eruptions on May 7th hurled coronal masss ejections (CMEs) toward Earth. Forecasttracks prepared by analysts at the Goddard Space Weather Lab suggests that clouds with arrive in succession on May 9th at 13:40 UT and May 10th at 07:54 UT (+/- 7 hours).
CORONAL HOLE: A dark hole in the sun's atmosphere (a 'coronal hole') is spewing a stream of solar wind toward Earth. The impact of the stream, expected on May 9-11, could add to the effect of the incoming CMEs, boosting the chances of strong geomagnetic activity later this week.

CME Arrival Late May 9th & May 10th 2012 ; Event Issue Date: 2012-05-07 11:04:20.0 GMT
 CME Arrival Time: 2012-05-09 13:40:16.0 GMT
 Arival Time Confidence Level: ± 6 hours
 Disturbance Duration: 6 hours


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