Headline:
Flash Flood Warning issued May 17 at 8:03PM CDT until May 17 at 11:15PM CDT by NWS Sioux Falls SD
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
May 17, 2026 - 6:03pm
Expires:
May 17, 2026 - 9:15pm
Description:
FFWFSD
The National Weather Service in Sioux Falls has issued a
* Flash Flood Warning for...
North Central Plymouth County in northwestern Iowa...
South Central Sioux County in northwestern Iowa...
* Until 1115 PM CDT.
* At 803 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 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.
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...
Le Mars, Maurice, Struble and Brunsville.
Instruction:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Area Description:
Plymouth, IA; Sioux, IA
Forcast Office:
NWS Sioux Falls SD
Sender:
w-nws.webmaster@noaa.gov