Kansas Severe Flash Flood Warning | Effective 06/20/2026 22:43

Headline: 
Flash Flood Warning issued June 21 at 12:43AM CDT until June 21 at 4:45AM CDT by NWS Topeka KS
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
June 20, 2026 - 10:43pm
Expires: 
June 21, 2026 - 2:45am
Description: 
FFWTOP The National Weather Service in Topeka has issued a * Flash Flood Warning for... Northwestern Geary County in east central Kansas... Clay County in north central Kansas... Southeastern Cloud County in north central Kansas... Northeastern Ottawa County in north central Kansas... Southwestern Pottawatomie County in northeastern Kansas... Southwestern Riley County in northeastern Kansas... * Until 445 AM CDT. * At 1242 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 2.5 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Manhattan, Clay Center, Wakefield, Riley, Miltonvale, Milford, Leonardville, Olsburg, Randolph, Green, Longford, Oak Hill, Milford Lake, Keats, Idana and Tuttle Creek Lake.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.
Area Description: 
Clay, KS; Cloud, KS; Geary, KS; Ottawa, KS; Pottawatomie, KS; Riley, KS
Forcast Office: 
NWS Topeka KS