Mar 062012
This image is a full-disk view of the X-ray Su...

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A class X5.4 solar X-ray flare has erupted from major sunspot AR1429. This flare is Earth facing and inbound. Potential radiation storms and radio interruptions are possible with this flare.

Sunspot AR1429 has already sent two CMEs into space since it began turning earthward over the weekend. Neither CME is heading directly at Earth, but both are expected to hit our planet’s magnetosphere. NOAA forecasters predict the CME’s will create a 30% to 40% chance of geomagnetic storms during the next 24-48 hours.

Sep 262011

GEOMAGNETIC STORM: A strong-to-severe geomagnetic storm is in progress (Level 8 Class M) following the impact of a coronal mass ejection (CME) at approximately 12:15 UT on Sept. 26th. The Goddard Space Weather Lab reports a “strong compression of Earth’s magnetosphere. Simulations indicate that solar wind plasma [has penetrated] close to geosynchronous orbit starting at 13:00UT.” Geosynchronous satellites could therefore be directly exposed to solar wind plasma and magnetic fields. High-latitude sky watchers should be alert for Northern and Southern Lights after nightfall.

Aug 092011

4AM this morning and Earth directed. An X flare is the worst type of Sun eruption possible. This is a big one traveling on a fast solar wind.
UPDATED 8-10-11: The brunt of the explosion was not Earth directed. Radiation from the flare created waves of ionization in Earth’s upper atmosphere disrupting communications at some VLF and HF radio frequencies. Any further effects will surface tomorrow and the 12th.