October 16, 2021


Heavy Rains, Flooding

Severe weather once again impacted the state bring large hail, damaging winds, tornadoes, heavy rain and flooding.  Very strong thunderstorms formed over southwest, South Dakota during Wednesday afternoon and became widespread.


These thunderstorms brought very heavy rain with locations reporting over two inches.  The Emergency Management at the Oglala Sioux Tribe reported flash flooding over roads in southwest, South Dakota.  This image showed flooding occurring from Three Mile Creek Area east of Sharps Corner.

The agency warned motorists not to try to cross flooded roads and to call 911 if you needed assistance.


Photo Credit:  OST Emergency Management

Oglala Sioux County was not alone in flood reports.  In Custer County about 1 mile southwest of Dewey, the public reported flooding occurring on the Red Creek and was about four to five feet over the road.  Flash flooding also occurred about 2 mile northwest of Nemo in Lawrence County.  A trained weather spotter reported water was over the Box Elder Creek Road near the Box Elder Forks Campground.

July 3rd, 2019 Rainfall Reports (Over One Inch):
5NE of Millboro: 1.00"
14SE of Mission: 1.03"
3NE of Johnson Siding: 1.29"
2SW of Norris: 1.30"
2SW of Hamill: 1.42"
5E of Piedmont: 1.47"
9SW of Colome: 1.50"
12E of Martin: 1.75"
10NW of Winner: 1.78"
Dewey: 2.25"
14NE of Martin: 2.25"
7NE of Batesland: 2.70"