South Dakota Flash Flood Warning - Severe | Effective 06/02/2026 14:43

Headline: 
Flash Flood Warning issued June 2 at 3:43PM MDT until June 2 at 7:00PM MDT by NWS Rapid City SD
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
June 2, 2026 - 2:43pm
Expires: 
June 2, 2026 - 6:00pm
Description: 
At 343 PM MDT, Trained weather spotters reported thunderstorms producing heavy rain, hail, and street flooding in Oglala. Between 2 and 4 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is already occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Trained spotters reported. 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... Oglala, Loneman, South Lakeside, Dry Wood Housing, Prairie Winds Casino, Number 4, Calico, Slim Butte, Slim Buttes Housing and southwestern Pine Ridge Reservation.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Area Description: 
Fall River, SD; Oglala Lakota, SD
Forcast Office: 
NWS Rapid City SD