National Weather Service United States Department of Commerce

Heavy to Excessive Rainfall in the Central Appalachians; Severe Weather in the Mid-South; Hot Weather in Southern California

Heavy to excessive rainfall may lead to flooding today over southwest Pennsylvania into northern West Virginia, and western Maryland. Severe thunderstorms are possible this afternoon and evening in the Mid-South and across Eastern North Carolina. An extended period of hot weather is forecast for parts of coastal southern California including Los Angeles from today through Thursday. Read More >

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Last Map Update: Wed, May 21, 2025 at 5:40:28 am PDT

Dry conditions are expected the rest of tonight through Thursday night. Friday afternoon there will be increasing chances of showers and thunderstorms across mainly areas north of the I-80 corridor. Any precipitation that falls on Friday is expected to be light, generally less than a few hundredths of an inch of rain.
Thunderstorm chances increase across Humboldt and Elko Counties Friday afternoon as a trough approaches from the west. This map shows a 20 % chance of thunderstorms up along the NV/OR and NV/ID borders Friday evening at 5:00 PM PDT, tapering to around a 2% chance of thunderstorms along the I-80 corridor. Thunderstorms are expected to end by 8:00 PM Friday.
Warm and dry conditions will persist through the end of the week, with temperatures climbing into the 70s and 80s.

 

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