National Weather Service United States Department of Commerce

Thunderstorms Over the Southeast U.S. and Northern Rockies; Critical Fire Weather Conditions in the Plains

Isolated severe thunderstorms and showers will bring a flash flood threat across the Southeast. Scattered severe wind gusts are expected across the northern Rockies into the Plains. Elevated to Critical fire weather conditions are expected across the north/central Plains and Upper Midwest. Read More >

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Last Map Update: Mon, May 12, 2025 at 12:12:23 am PDT

An approaching low pressure system will cause winds to increase from the west in the Mojave desert and slopes over the next few days. A Wind Advisory has been issued as winds 20 to 30 mph with gusts up to 50 mph are expected. The advisory is valid from 8 AM Monday through 2 AM Wednesday.
While air temperatures will be gradually cooling over the next few days, keep in mind that water temperatures can be much colder than air temperatures due to the water originating from snowmelt runoff. It takes less than 15 minutes to lose your dexterity in water below 60 degrees! Always wear a life vest, always bring a life preserver with you, and do not go into closed rivers, streams, and lakes.
Mid level moisture associated with the upcoming system will bring a chance for thunderstorms, mainly in the Sierra Nevada, on Tuesday. Along with expected hazards such as erratic winds, small hail, and locally intense rainfall rates, cloud-to-ground lightning has the potential to spark new wildfires as fuels continue to dry into the season.

 

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