by Andrew Freedman
Climate Central, August 15, 2012
The costly and ongoing drought that stretches across a majority of the lower 48 states worsened during the past month, and by one measure it now ranks fifth on the top 10 list of the largest droughts ever recorded in the U.S., according to a new report released Wednesday from the National Climatic Data Center (NCDC).
The drought is affecting the broadest swath of land and has the greatest intensity of any drought since 1956, and is comparable to the Dust Bowl era droughts of the 1930s as well, NCDC scientists reported….
Based on PDSI data, 57.2 percent of the lower 48 states were experiencing “moderately to extremely dry” conditions at the end of July, which was up from 55.2 percent at the end of June.
This places the 2012 drought in fifth place based on its aerial expanse, otherwise known as the drought footprint. …