Headline:
Flash Flood Warning issued August 6 at 5:43AM CDT until August 6 at 8:30AM CDT by NWS St Louis MO
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
August 6, 2026 - 3:43am
Expires:
August 6, 2026 - 6:30am
Description:
At 543 AM CDT, Doppler radar indicated that the heaviest rainfall had
ended. However, rain gauges indicate between 1 and 3 inches of rain
have fallen. Areas of flash flooding are likely to continue.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
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, Jonesburg,
Truesdale, Innsbrook, Treloar, Big Spring, Dutzow, Foristell, High
Hill, Rhineland, McKittrick, Holstein and Americus.
This includes Interstate 70 in Missouri between exits 179 and 200.
Instruction:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
Area Description:
Montgomery, MO; Warren, MO
Forcast Office:
NWS St Louis MO
Sender:
w-nws.webmaster@noaa.gov