Heat Wave in the Eastern US; Heavy Rain in the Ohio Valley

Dangerous, long-lasting heat is expected across portions of the Central and Southeast U.S. Showers and thunderstorms, some severe, may produce heavy rain and localized areas of flash flooding across parts of the Ohio/Tennessee Valleys into the Appalachians. Severe thunderstorms are possible across parts of the northern Great Plains. Fire weather conditions possible in the Great Basin. Read More >

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Last Map Update: Mon, Jul 21, 2025 at 2:36:35 am PDT

Watches, Warnings & Advisories

National Weather Service San Francisco Bay Area, CA

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National Weather Service Los Angeles, CA

Red Flag Warning

Small Craft Advisory

Lake Wind Advisory

Below Average Temperatures for the Week

Cooler for Much of Next Week

An upper level system moving through the Pacific Northwest this week will allow cooler air from the northern Pacific to move into central California. Afternoon highs in the San Joaquin Valley will struggle to get out of the low 90s, with only up to a 35 percent chance to exceed 93° for much of the area.

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Heat Wave in the Eastern US; Heavy Rain in the Ohio Valley

NWS Forecast Office Hanford, CA