Flash Flood Warning — Johnson County, Kansas
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Current Status
🌊 Active: Flash Flood Warning
Flash Flood Warning issued August 10 at 6:21AM CDT until August 10 at 11:00AM CDT by NWS Kansas City/Pleasant Hill MO
At 621 AM CDT, Doppler radar indicated the strongest storms and heaviest rain rates have ended. Between 2 and 3 inches of rain have fallen with the storms this morning. Additional rainfall amounts up to 0.5 inches are possible in the warned area as rain slowly ends. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. 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... Overland Park, Olathe, Leawood, Gardner, Spring Hill, Clare, Stanley and Stilwell.
Effective August 10, 2026 at 7:21 AM ET · Expires August 10, 2026 at 12:00 PM ET
Event Details
Event Type
Flash Flood Warning
Severity
severe
Issued By
NWS Kansas City/Pleasant Hill MO
Expires
August 10, 2026 at 12:00 PM ET
Last Checked
11 hours ago
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Other Active Alerts in Kansas
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Severe Thunderstorm Watch
Get Flash Flood Warning Alerts for Johnson County
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Frequently Asked Questions
What does a Flash Flood Warning mean for Johnson County, Kansas?
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Is this Flash Flood Warning currently active?
Yes — this alert is active as of our last check (11 hours ago). It's set to expire August 10, 2026 at 12:00 PM ET.
How do I get notified about Flash Flood Warning alerts for Johnson County?
Download StormCast free on Google Play and set Johnson County, Kansas as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.