Flash Flood Warning until 06:00PM 
FFWFSD The National Weather Service in Sioux Falls has issued a
* Flash Flood Warning for... Southeastern Lyon County in northwestern Iowa... Northwestern O'Brien County in northwestern Iowa... Northeastern Sioux County in northwestern Iowa...
* Until 600 PM CDT.
* At 401 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. The expected rainfall rate is 3 to 5 inches in 1 hour. Additional rainfall amounts of 0.5 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... Sheldon, Archer and Matlock.
* AFFECTED AREAS: LYON, IA ... O'BRIEN, IA ... SIOUX, IA
Instructions:
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Address/Location
Sioux County Sheriff's Office
4363 Ironwood Ave., Ste 1
Orange City, IA 51250
Contact
Emergency: 9-1-1
Non-emergencies: 712-737-3307