National Weather Service United States Department of Commerce

Severe Thunderstorm and Excessive Rainfall Potential for the Central U.S. Today

Severe thunderstorms with a threat for large hail, isolated damaging winds and possibly a tornado are expected in parts of eastern Colorado today from mid afternoon to early evening. Several days of heavy rainfall will begin today over the western Gulf Coast where Flood Watches and excessive rainfall outlooks have been issued for today, Saturday, and Sunday. Read More >

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Last Map Update: Thu, May 21, 2026 at 2:20:18 pm PDT

Summer like conditions are expected for the majority of the week and through the holiday weekend. Morning clouds along the coast are likely, but should give way to sunshine by the afternoon. Inland temperatures are expected to be 10-15 degrees above normal through Sunday. Weak instability in the region brings about a 10% chance of thunderstorms across northern California for Friday and Saturday afternoons. Conditions could begin to change on Memorial Day. We’re watching for the potential for a cold low pressure system to move into the Pacific Northwest Monday into early next week, which could bring a 10-15 degree cooling trend on Monday along with increasing rain chances later in the day. Stay tuned as details become more clear over the coming days.
With warmer temperatures on the way, it’s good to remember that area waterways remain cold and rivers are swift. Wear a life jacket, limit time in cold water, never swim alone and have a flotation device that can be thrown to someone in need.

 

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