Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >

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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Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

May 2023: Below Normal Precipitation, Above Normal Temperatures