Headline:
Flash Flood Warning issued May 18 at 5:01PM CDT until May 18 at 8:00PM CDT by NWS St Louis MO
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
May 18, 2026 - 3:01pm
Expires:
May 18, 2026 - 6:00pm
Description:
FFWLSX
The National Weather Service in St Louis has issued a
* Flash Flood Warning for...
Northwestern Franklin County in east central Missouri...
Northern Gasconade County in east central Missouri...
Warren County in east central Missouri...
* Until 800 PM CDT.
* At 501 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. Additional rainfall amounts up to 1 inch 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...
Warrenton, Wright City, Hermann, Marthasville, Truesdale,
Innsbrook, Treloar, Swiss, Dutzow, Mount Sterling, Foristell,
Berger, Holstein and Bay.
This includes Interstate 70 in Missouri between exits 188 and 200.
Instruction:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Area Description:
Franklin, MO; Gasconade, MO; Warren, MO
Forcast Office:
NWS St Louis MO
Sender:
w-nws.webmaster@noaa.gov