Full Notification

FFWFSD The National Weather Service in Sioux Falls has issued a

* Flash Flood Warning for... Western Lyon County in northwestern Iowa... Western Sioux County in northwestern Iowa... Southwestern Rock County in southwestern Minnesota... Eastern Bon Homme County in southeastern South Dakota... Northwestern Clay County in southeastern South Dakota... Southeastern Hutchinson County in southeastern South Dakota... Lincoln County in southeastern South Dakota... Southeastern McCook County in southeastern South Dakota... Southern Minnehaha County in southeastern South Dakota... Turner County in southeastern South Dakota... Yankton County in southeastern South Dakota...

* Until 1130 PM CDT.

* At 733 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 1 to 3 inches in 1 hour. Additional rainfall amounts of 1 to 3 inches 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... Sioux Falls, Yankton, Canton, Tyndall, Parker, Lewis And Clark State Recreation Area, Brandon, Harrisburg, Tea, Hartford, Lennox, Springfield, Freeman, Crooks, Garretson, Wall Lake, Centerville, Worthing and Larchwood.

* AFFECTED AREAS: LYON, IA ... SIOUX, IA ... ROCK, MN ... BON HOMME, SD ... CLAY, SD ... HUTCHINSON, SD ... LINCOLN, SD ... MCCOOK, SD ... MINNEHAHA, SD ... TURNER, SD ... YANKTON, SD

Instructions:

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.