South Dakota, 2018

Flooding in South Dakota, June 21, 2018

June 21, 2018 · NWS ABR · 2 events in 2 counties and zones

Three to five inches of rain fell over the Badlands and southwest South Dakota from June 17th through the 20th. Runoff caused minor flooding along the White River from Kadoka to the confluence of the Missouri River.

Where it happened

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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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.

What happened

The episode as NWS ABR wrote it up.

Three to five inches of rain fell over the Badlands and southwest South Dakota from June 17th through the 20th. Runoff caused minor flooding along the White River from Kadoka to the confluence of the Missouri River. The river was only above flood stage at Oacoma for a short time period on June 21st when it rose to just above the flood stage of 15 feet to 15.6 feet. Minor flooding of agricultural land occurred as a result.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 flood. Local standard time, as filed.

Flood, Jones

When
June 21, 12:45 PM CST to 8:15 PM CST
Where
Jones County, 8 mi W of Okaton to 2.59 mi WSW of Okaton
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
43.880, -101.060

Flood, Lyman

When
June 21, 12:45 PM CST to 8:15 PM CST
Where
Lyman County, 13.36 mi S of Vivian to 11.5 mi S of Vivian
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
43.730, -100.230

What these are

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.

The same day elsewhere

More

Every storm in South Dakota in 2018Every state in 2018This day in weather historyWarnings in South Dakota, June 2018

Sources

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: 774978, 774979.