National Weather Service United States Department of Commerce

Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

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Last Map Update: Tue, Aug 11, 2026 at 9:12:15 pm PDT

Storm chances expand north to the I-80 corridor today. Lightning, new fire starts, brief heavy rain, small hail, blowing dust, and gusts of 45–55+ mph are possible. A storm near the fires north of Reno could produce erratic winds. Storm chances and flash-flood potential increase Wednesday and Thursday.
A Flash Flood Watch begins Wednesday afternoon for Mono, Mineral, and southern Lyon counties through Thursday evening and the Greater Reno–Carson City–Minden area through Friday evening. Afternoon and evening thunderstorms may produce heavy rain and flash flooding. Primary concerns include flooded roads and debris flows near and downstream of recent burn areas and steep terrain.
A Fire Weather Watch is in effect Thursday for northeast California, Greater Lake Tahoe and Truckee, and northern Washoe County. Lightning over dry fuels and outflow gusts up to 50 mph may cause new fires to start and spread rapidly. Avoid activities that could cause a spark.

 

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