LCMAP Change Magnitude - 2011 Tornadoes

This image shows the impact of tornadoes that struck the Tuscaloosa and Birmingham, Alabama area on April 27, 2011 through USGS LCMAP’s Change Magnitude product. The paths of the tornadoes are marked by streaks of in blue, with areas of purple, representing changes in the high- to mid-range of the product’s magnitude scale. Other areas of change are scattered throughout the image, noting changes of various magnitudes that took place throughout the year.