South Dakota, 2018Flooding in South Dakota, June 20 to 22, 2018
June 20 to 22, 2018 · NWS UNR · 4 events in 4 counties and zones
From June 17 to June 20, three to five inches of rain fell over the Badlands and portions of southwestern South Dakota. Runoff from the heavy rain caused minor flooding along the White River from Kadoka to the confluence with the Missouri River and the Cheyenne River upstream from Lake Oahe.
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 4
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
From June 17 to June 20, three to five inches of rain fell over the Badlands and portions of southwestern South Dakota. Runoff from the heavy rain caused minor flooding along the White River from Kadoka to the confluence with the Missouri River and the Cheyenne River upstream from Lake Oahe.
Flood, Jackson
- When
- June 20, 9:00 AM MST to 5:15 PM MST
- Where
- Jackson County, 7.99 mi W of Interior to 12.45 mi WNW of Potato Creek
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.720, -102.140
Minor flooding of agricultural land occurred along the White River. The river gauge south of Kadoka along SD Highway 73 crested at 14.0 feet or 1.0 foot above flood stage.
Flood, Tripp
- When
- June 21, 12:45 AM CST to 8:15 PM CST
- Where
- Tripp County, 12.99 mi NW of Hamill to 12.79 mi NW of Ideal
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 43.720, -99.880
Minor flooding of agricultural land occurred along the White River near Oacoma. The river gauge southwest of Oacoma along SD Highway 47 crested at 15.6 feet or 0.6 feet above flood stage.
Flood, Ziebach
- When
- June 21, 9:15 AM MST to June 22, 7:30 AM MST
- Where
- Ziebach County, 4.92 mi W of Bridger to 21.62 mi WSW of Bridger
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 44.550, -102.000
Minor flooding of agricultural land occurred along the Cheyenne River. The river gauge near Bridger along SD Highway 34 crested at 17.8 feet or 1.8 feet above flood stage.
Flood, Haakon
- When
- June 21, 9:15 AM MST to June 22, 7:30 AM MST
- Where
- Haakon County, 16.79 mi WNW of Milesville to 9.2 mi W of Milesville
- Cause
- Heavy Rain
- Reported by
- River/Stream Gage
- Coordinates
- 44.510, -102.000
Minor flooding of agricultural land occurred along the Cheyenne River. The river gauge near Bridger along SD Highway 34 crested at 17.8 feet or 1.8 feet above flood stage.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Flash Flooding and Heavy Rain in Pennsylvania, June 20 to 21, 20181 injured · $13 million · 19 events
- Tornadoes and Flash Flooding in Iowa, June 20 to 21, 2018$1.4 million · EF0 · 32 events
- Flooding in Iowa, June 20 to 30, 2018$2.3 million · 9 events
- Damaging Winds and Lightning Strikes in North Carolina, June 20, 2018$186,000 · 50 kt wind · 10 events
- Flash Flood and Damaging Winds in Illinois, June 20 to 21, 2018$55,000 · 52 kt wind · 3 events
- Damaging Winds in Texas, June 20, 2018$32,000 · 50 kt wind · 3 events
- Damaging Winds and Lightning Strike in North Carolina, June 20, 2018$27,000 · 50 kt wind · 6 events
- Damaging Winds in Virginia, June 20, 2018$19,000 · 50 kt wind · 4 events
- Hail and Damaging Winds in Kansas, June 20, 20181 in hail · 13 events
- Hail in New Mexico, June 20 to 21, 20181 injured · $6,000 · 1.5 in hail · 5 events
- Damaging Wind in Ohio, June 20, 2018$15,000 · 65 kt wind · 1 event
- Tornado and Flash Flood in Iowa, June 20, 2018EF0 · 8 events
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 765153, 765160, 765148, 765151.