Global warming to make US thunderstorms larger, more frequent
Summer thunderstorms in North America will likely be larger, wetter and more frequent in a warmer world, dumping 80 percent more rain in some areas and worsening flooding, a new study says.
Future storms will also be wilder, soaking entire cities and huge portions of states, according to a federally-funded study released Monday in the journal Nature Climate Change.
The US in recent years has experienced prolonged drenchings that have doused Nashville in 2010, West Virginia and Louisiana in 2016 and Houston this year. The disasters cost about $20 billion a year in damage.
By the end of century if emissions aren’t curbed, these gully washers will be much worse because they will get bigger, said Andreas Prein, a climate scientist at the National Center for Atmospheric Research in Boulder, Colorado, who led the study.
Prein and colleagues used high-resolution computer simulations to see how global warming will likely change the large thunderstorms that are already daily summer events in North America. Previous studies projected more frequent and wetter storms, but this is the first research to show they likely will be more widespread, covering an entire city instead of just half of it, Prein said.
“We see increases that are beyond our expectations … far beyond our expectations,” Prein said. “It looks everything that can go wrong does go wrong concerning flooding.”
Posted by admin
on Nov 22 2017. Filed under Climate change, Water & Wetland.
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