Rainfall and Flood in New Orleans
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00:00Extreme rainfall drenched New Orleans on Monday afternoon, flooding homes and businesses and turning roadways into rivers.
00:08Parts of the city recorded six to nine inches of rain in just a few hours.
00:13That's more rain than typically falls in all of April.
00:17There's only a one to two percent chance of this kind of rain happening in any given year, according to NOAA data.
00:24But a tropical storm wasn't responsible for this event, unlike many notable floods in New Orleans.
00:30This was a product of juiced up spring thunderstorms in a warming world.
00:35Rain is falling harder in cities across the U.S. as the planet warms from fossil fuel pollution, according to a recent study by the nonprofit research group Climate Central.
00:46Hourly rainfall rates in New Orleans are up to 10 percent higher now than they were in 1970, meaning rainfall events like Mondays are becoming more common.