⚠️ Flash Flood Warning – Johnson, KS; Leavenworth, KS; Wyandotte, KS; Clay, MO; Platte, MO – Sunday, June 21, 2026

Flash Flood Warning issued June 21 at 4:42AM CDT until June 21 at 8:30AM CDT by NWS Kansas City/Pleasant Hill MO

Details

FFWEAX

The National Weather Service in Pleasant Hill has issued a

* Flash Flood Warning for…
Johnson County in east central Kansas…
Leavenworth County in northeastern Kansas…
Wyandotte County in northeastern Kansas…
Southwestern Clay County in west central Missouri…
Southeastern Platte County in west central Missouri…

* Until 830 AM CDT.

* At 442 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2.5 inches of rain
have fallen. Additional rainfall amounts of 0.5 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 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…
Kansas City, Overland Park, Olathe, Shawnee, Lenexa, Leavenworth,
Leawood, Prairie Village, Lansing, Merriam, Mission, Smithville,
Bonner Springs, De Soto, Parkville, Tonganoxie, Platte City and
Basehor.

Instructions

Turn around, don’t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.