Google has released a set of satellite images of the tornado destruction that swept across parts of the southern US. The images are available in this Picasa Web album. This imagery, as well as data sets such as Red Cross shelter locations and tornado touchdown reports, are available in this collection on Google Maps. We will continue to add imagery and data as it comes available.
Left: Google imagery from late 2010. Right: GeoEye imagery from Thursday, April 28. Top: Charleston Square Apartments, Tuscaloosa, Alabama. Bottom: Towns of Pleasant Grove, Concord, and Hueytown, Jefferson County, Alabama.