Current climate-induced drought is slipping into a trend that scientists say resembles some of the worst droughts in U.S. history, like the Dust Bowl.
By Katherine Bagley,
Drought conditions in more than half of the United States have slipped into a pattern that climatologists say is uncomfortably similar to the most severe droughts in recent U.S. history, including the 1930s Dust Bowl and the widespread 1950s drought.
The 2013 drought season is already off to a worse start than in 2012 or 2011—a trend that scientists at the National Oceanic and Atmospheric Administration (NOAA) say is a good indicator, based on historical records, that the entire year will be drier than last year, even if spring and summer rainfall and temperatures remain the same. If rainfall decreases and temperatures rise, as climatologists are predicting will happen this year, the drought could be even more severe.
The federal researchers also say there is less than a 20 percent chance the drought will end in the next six months.
"There were certainly pockets of drought as we went into spring last year, but overall, the situation was much better than it is now," said Tom Karl, a climatologist and director of NOAA's National Climatic Data Center. "We are going to have to watch really closely ... Last year was bad enough."
In February, 54.2 percent of the contiguous United States experienced drought conditions, compared to 39 percent at the same time last year. Large swaths of South Dakota, Wyoming, Nebraska and Montana—which entered last year's major agricultural growing season with very moist conditions—are now battling severe and extreme drought as farmers get ready to plant their spring crops.
The outlooks for rainfall and temperature are similarly bleak.
NOAA's Climate Prediction Center forecast last week that Texas, Oklahoma and the Pacific Northwest will likely get less rainfall in 2013 than in 2012, and that the entire nation will experience a warmer summer than last year.
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