Thunderstorm Wind, Buffalo
- When
- June 20, 6:30 PM CST
- Where
- Buffalo County
- Measured
- 69 kt (79 mph)
- Coordinates
- 44.050, -99.430
Tornadoes and Hail in South Dakota, June 20, 1975
6 thunderstorm wind, 2 tornado, 1 hail, as filed by the National Weather Service.
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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $25,000
- Crop damage
- None recorded
- Events
- 9
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.
Event by event
6 thunderstorm wind, 2 tornado, 1 hail. Local standard time, as filed.
Thunderstorm Wind, Tripp
- When
- June 20, 7:00 PM CST
- Where
- Tripp County
- Measured
- 85 kt (98 mph)
- Coordinates
- 43.370, -99.870
Thunderstorm Wind, Tripp
- When
- June 20, 7:15 PM CST
- Where
- Tripp County
- Coordinates
- 43.430, -99.950
Thunderstorm Wind, Hughes
- When
- June 20, 8:17 PM CST
- Where
- Hughes County
- Measured
- 55 kt (63 mph)
- Coordinates
- 44.380, -100.280
Tornado, Brown
- When
- June 20, 10:00 PM CST
- Where
- Brown County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 45.480, -98.450
Tornado, Brown
- When
- June 20, 10:13 PM CST
- Where
- Brown County
- Rating
- F1
- Path length
- 2.5 mi
- Path width
- 20 yd
- Property damage
- $25,000
- Coordinates
- 45.370, -98.500
Hail, Brookings
- When
- June 20, 10:30 PM CST
- Where
- Brookings County
- Measured
- 1.75 in hail
- Coordinates
- 44.250, -97.030
Thunderstorm Wind, Brookings
- When
- June 20, 10:30 PM CST
- Where
- Brookings County
- Measured
- 61 kt (70 mph)
- Coordinates
- 44.250, -97.030
Thunderstorm Wind, Charles Mix
- When
- June 20, 11:55 PM CST
- Where
- Charles Mix County
- Coordinates
- 43.150, -98.570
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Hail in Colorado, June 20, 1975
- Tornadoes and Hail in Nebraska, June 20, 1975
- Tornadoes and Hail in Illinois, June 20, 1975
- Hail and Damaging Winds in Georgia, June 20, 1975
- Hail and Damaging Winds in Texas, June 20, 1975
- Hail in Indiana, June 20, 1975
- Damaging Winds in Minnesota, June 20, 1975
- Damaging Winds in South Carolina, June 20, 1975
- Hail in Michigan, June 20, 1975
- Hail in Ohio, June 20, 1975
- Hail in West Virginia, June 20, 1975
- Damaging Wind in North Carolina, June 20, 1975
More
Every storm in South Dakota in 1975Every state in 1975This day in weather historyThe tornado archive for South Dakota, 1975
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 2026-09-24. Each event’s entry at NCEI: 10113954, 10113955, 10113956, 10113957, 10113958, 10113959, 10113960, 10113961, 10113962.