National Weather Service United States Department of Commerce

Severe Weather and Heavy Rainfall from the High Plains to the Ohio Valley; Heat Continuing in the Central Plains and Southeast

A stationary front will be the focus for daily showers and thunderstorms capable of widely scattered flash flooding and severe weather from the High Plains to the Ohio Valley. Monsoonal thunderstorms could cause local flash flooding across the Southwest and the Great Basin. Dangerous heat continues across the Central Plains and Southeast. Many areas will see their hottest temperatures of the year. Read More >

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Last Map Update: Wed, Aug 12, 2026 at 6:56:34 am PDT

A Fire Weather Watch is in effect for Sierra locations above 3000 feet from 5 am to 9 pm Thursday due to thunderstorm chances and dry fuels.
A pattern change this week brings thunderstorm chances to interior NorCal through the end of the week.
Probabilities of mountain thunderstorms begin to increase today as monsoonal moisture pushes into the region.
Seasonable temperatures today trend below normal through the end of the week and into next week.
With thunderstorm chances through the week, follow these safety tips and stay weather aware!

 

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