Source - Space Weather News for March 7, 2012: http://spaceweather.com
SOLAR ACTIVITY: Big sunspot AR1429 has unleashed another major flare--an X5-class eruption on March 7th at 00:28 UT. As a result of the blast, a radiation storm is underway and a CME will likely hit Earth's magnetic field in a day or so. Geomagnetic storms are already in progress at high latitudes due to earlier eruptions from the active sunspot. Last night, auroras were spotted over several northern-tier US states including Michigan and Wisconsin. Check http://spaceweather.com for updates and images.
SPACE WEATHER ALERTS: Would you like a call when geomagnetic storms are in progress? Space weather alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).