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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 >

Probability of Exceedance Legend


0-19% Chance 20-39% Chance 40-59% Chance 60-79% Chance 80-100% Chance


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NOTICE:This is an experimental page meant to provide information on the potential for heat impacts in the Grand Canyon. Please contact Carter Humphreys at carter.humphreys@noaa.gov to provide any feedback.




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