NOAA – Extended Drought Conditions in the United States
“By early July 2012, more than 60% of the contiguous United States was experiencing drought conditions, nearly double the area from early January. This animation shows monthly composites of D1 to D4 categories of drought in the contiguous U.S. over the time frame January 2012 to July 2012 using data from the U.S. Drought Monitor. …