Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

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On the heels of a much colder than normal April, May finished much warmer than normal across the area. Most areas received below normal precipitation as well. Here are the details at select locations.

Here's a map overview of May temperature and precipitation departures from normal from the Midwestern Regional Climate Center, which uses various observations across the area and interpolates between them.

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Prolonged Atmospheric River Will Impact the Northwest Early this Week

May 2023: Below Normal Precipitation, Above Normal Temperatures