Eco-Crash News: Weather Changed in the US Northeast


Alex Wierbinski's picture

By Alex Wierbinski - Posted on 31 July 2018

ECO-CRASH NEWS

Weather Changed in the US Northeast

What is causing more extreme precipitation in the northeast?
Dartmouth College, July 31, 2018.

Where & What

"From Maine to West Virginia, the Northeast has seen a larger increase in extreme precipitation than anywhere else in the U.S."

53% Increase in Extreme Precip

"...these heavy rain and snow events, defined as a day with about two inches of precipitation or more, have been 53 percent higher in the Northeast since 1996."

Why

"...hurricanes were responsible for nearly half of the increase in extreme rainfall across the Northeast. A warmer Atlantic Ocean and more water vapor in the atmosphere are fueling these storms, causing them to drop more rain over the Northeast."

"Severe thunderstorms along "fronts," especially intense downpours along cold fronts, accounted for 25 percent of the increase in extreme precipitation."

"Nor'easters and other "extratropical cyclones," which are storms that form outside of the tropics, accounted for 15 percent of the increase in extreme precipitation."

Turbocharged by...

"Other research has found that the causes of more frequent extreme precipitation events in this study -- increased ocean temperatures, more water vapor in the atmosphere, and a wavier jet stream -- are associated with a warmer world."

 

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