Thunderstorm Wind, Roberts
- When
- June 20, 12:35 AM CST
- Where
- Roberts County
- Measured
- 58 kt (67 mph)
- Coordinates
- 45.850, -97.100
Tornadoes and Hail in South Dakota, June 20, 1991
4 thunderstorm wind, 3 hail, 2 tornado, 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
4 thunderstorm wind, 3 hail, 2 tornado. Local standard time, as filed.
Hail, Roberts
- When
- June 20, 12:45 AM CST
- Where
- Roberts County
- Measured
- 1.75 in hail
- Coordinates
- 45.930, -96.830
Thunderstorm Wind, Lake
- When
- June 20, 6:12 AM CST
- Where
- Lake County
- Measured
- 65 kt (75 mph)
- Coordinates
- 44.000, -97.120
Hail, Minnehaha
- When
- June 20, 5:25 PM CST
- Where
- Minnehaha County
- Measured
- 1.75 in hail
- Coordinates
- 43.630, -96.950
Tornado, Edmunds
- When
- June 20, 5:40 PM CST
- Where
- Edmunds County
- Rating
- F0
- Path length
- 0.7 mi
- Path width
- 50 yd
- Coordinates
- 45.530, -99.670
Tornado, Spink
- When
- June 20, 6:20 PM CST
- Where
- Spink County
- Rating
- F0
- Path length
- 0.5 mi
- Path width
- 50 yd
- Property damage
- $25,000
- Coordinates
- 44.650, -98.100
Hail, Beadle
- When
- June 20, 6:30 PM CST
- Where
- Beadle County
- Measured
- 0.75 in hail
- Coordinates
- 44.200, -98.000
Thunderstorm Wind, Codington
- When
- June 20, 7:30 PM CST
- Where
- Codington County
- Measured
- 55 kt (63 mph)
- Coordinates
- 44.900, -97.100
Thunderstorm Wind, Codington
- When
- June 20, 7:47 PM CST
- Where
- Codington County
- Measured
- 60 kt (69 mph)
- Coordinates
- 44.900, -96.880
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.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Hail in North Dakota, June 20, 1991
- Hail in New Mexico, June 20, 1991
- Damaging Wind in Tennessee, June 20, 1991
- Tornadoes and Hail in Texas, June 20, 1991
- Hail and Damaging Wind in Kansas, June 20, 1991
- Damaging Winds in Florida, June 20, 1991
- Hail in Oklahoma, June 20, 1991
- Hail and Damaging Wind in Colorado, June 20, 1991
- Hail and Damaging Wind in Montana, June 20, 1991
- Damaging Winds in Minnesota, June 20, 1991
- Hail in Idaho, June 20, 1991
- Hail in Louisiana, June 20, 1991
More
Every storm in South Dakota in 1991Every state in 1991This day in weather historyThe tornado archive for South Dakota, 1991Warnings in South Dakota, June 1991
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: 10125963, 10125964, 10125965, 10125966, 10125967, 10125968, 10125969, 10125970, 10125971.