⚠️ Flash Flood Warning – Dixon, NE; Bon Homme, SD; Clay, SD; Union, SD; Yankton, SD – Friday, July 3, 2026

Flash Flood Warning issued July 3 at 1:00AM CDT until July 3 at 4:00AM CDT by NWS Sioux Falls SD

Details

FFWFSD

The National Weather Service in Sioux Falls has issued a

* Flash Flood Warning for…
Northern Dixon County in northeastern Nebraska…
Southeastern Bon Homme County in southeastern South Dakota…
Southern Clay County in southeastern South Dakota…
Southwestern Union County in southeastern South Dakota…
Southern Yankton County in southeastern South Dakota…

* Until 400 AM CDT.

* At 100 AM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
1 and 3 inches of rain have fallen. The expected rainfall rate is 1
to 2 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 and automated gauges.

IMPACT…Flash flooding of especially urban areas, along with small
creeks and streams, highways, streets and underpasses, as
well as other poor drainage and low- lying areas.

* Some locations that will experience flash flooding include…
Yankton, Vermillion, Lewis And Clark State Recreation Area, Elk
Point, Newcastle, Meckling and Maskell.

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.

Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.

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.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.