National Weather Service United States Department of Commerce

Flash Flooding Likely into Tonight for Portions of Kansas and Missouri; Heat Wave Expands to the East Coast; Tropical Storm Krosa Forms Near the Marianas.

Flash flooding likely in northeast Kansas & Missouri into tonight. Widespread extreme heat will develop and persist across much of the Southeast this weekend & next week. Tropical Storm Krosa has formed and will continue to cause heavy rain across Guam & the CNMI through Saturday. Severe storms with flooding rains expected into tonight for portions of the Midwest. Read More >

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Last Map Update: Thu, Jul 24, 2025 at 8:12:34 pm PDT

Scattered thunderstorms are expected Thursday and Friday. The main threats will be cloud to ground lightning, hail, and strong, gusty outflow winds. Brief downpours are also possible due to slow storm motions, which could cause mudslides/debris flows in recently burned areas. Remember that lightning is deadly - when you hear thunder, seek substantial, covered shelter and remain there until 30 minutes following the last rumble of thunder. Late day activity will gradually diminish this weekend, but isolated storms are still possible, especially east of the Cascades.
Do you know what to do when thunderstorms threaten? Here are some easy tips to be thunderstorm safe.
A Red Flag Warning is in effect for abundant lightning on dry fuels for most of NorCal, SE Klamath/southern Lake counties. Scattered thunderstorms are expected, and when combined with dry fuels, could lead to several new fire starts. Use extreme caution with any potential ignition sources to avoid starting a fire.

 

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