Major X1.1 solar flare peaked around Sunspot 1429 on March 5th, 2012

Earth orbiting satellites have detected an X1.1-class solar flare from sunspot AR1429 that produced a bright CME and resulted with strong R3 Level Radio Blackout. The flare peaked at 04:13 UTC on March 5th. A bright Coronal Mass Ejection (CME) is now seen in the latest STEREO Behind and Lasco images. The expanding plasma cloud is mostly heading towards the north and east, however a small portion looks to be Earth directed.

The expanding cloud will probably deliver a glancing blow to Earth's magnetic field on March 6th or 7th.

When the CME from today's X-flare arrives, a geomagnetic storm might already be in progress. An earlier CME is en route and nearing our planet. According to analysts at the Goddard Space Weather Lab, the cloud, which was produced by an M2-class eruption from sunspot AR1429 on March 4th, could deliver a glancing blow to Earth's magnetic field on March 6th at 04:30 UTC (+/- 7 hr).

Space Weather Message Code: SUMX01 / Serial Number: 77 / Issue Time: 2012 Mar 05 04:48 UTC

SUMMARY: X-ray Event exceeded X1

Begin Time: 2012 Mar 05 02:30 UTC
Maximum Time: 2012 Mar 05 04:09 UTC
End Time: 2012 Mar 05 04:43 UTC
X-ray Class: X1.1
Optical Class: 2b
Location: N15E54
NOAA Scale: R3 - Strong

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.

Follow Sun's activity in real time.

LASCO C2



X-ray flux



Global D-region absorption


This page will be updated with new information available.

Tags: X-CLASS

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