Source - Space Weather News for April 3, 2011: http://spaceweather.com
DEEP SKY AURORAS: A solar wind stream hit Earth's magnetic field over the weekend, sending a wave of "deep sky auroras" over northern-tier US states. The lights were pale-white or even invisible to the naked eye, but digital cameras revealed spectacular colors and luminous shapes above Wisconsin, Michigan, Minnesota, and elsewhere. Visit http://spaceweather.com for images and more information about this phenomenon.
GEOMAGNETIC STORM ALERTS: Would you like a phone call when geomagnetic storms erupt in your area? Sign up for Space Weather PHONE: http://spaceweatherphone.com.