Thunderstorm Wind, Lake
- When
- July 11, 1:00 AM CST
- Where
- Lake County
- Measured
- 52 kt (60 mph)
- Coordinates
- 44.000, -97.120
Tornado and Hail in South Dakota, July 11, 1987
13 thunderstorm wind, 2 hail, 1 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
- 2
- Property damage
- $25,000
- Crop damage
- None recorded
- Events
- 16
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
13 thunderstorm wind, 2 hail, 1 tornado. Local standard time, as filed.
Thunderstorm Wind, Charles Mix
- When
- July 11, 1:03 AM CST
- Where
- Charles Mix County
- Measured
- 70 kt (81 mph)
- Coordinates
- 43.150, -98.550
Thunderstorm Wind, Douglas
- When
- July 11, 1:30 AM CST
- Where
- Douglas County
- Measured
- 70 kt (81 mph)
- Coordinates
- 43.270, -98.300
Thunderstorm Wind, Brookings
- When
- July 11, 2:00 AM CST
- Where
- Brookings County
- Measured
- 70 kt (81 mph)
- Coordinates
- 44.330, -96.900
Thunderstorm Wind, Bon Homme
- When
- July 11, 2:00 AM CST
- Where
- Bon Homme County
- Measured
- 64 kt (74 mph)
- Coordinates
- 42.850, -97.880
Thunderstorm Wind, Hutchinson
- When
- July 11, 2:00 AM CST
- Where
- Hutchinson County
- Measured
- 78 kt (90 mph)
- Coordinates
- 43.400, -97.980
Thunderstorm Wind, McCook
- When
- July 11, 2:40 AM CST
- Where
- McCook County
- Measured
- 70 kt (81 mph)
- Coordinates
- 43.600, -97.300
Tornado, Minnehaha
- When
- July 11, 3:02 AM CST
- Where
- Minnehaha County
- Rating
- F2
- Path length
- 5 mi
- Path width
- 100 yd
- Property damage
- $25,000
- Coordinates
- 43.830, -96.730
Thunderstorm Wind, Minnehaha
- When
- July 11, 3:15 PM CST
- Where
- Minnehaha County
- Measured
- 52 kt (60 mph)
- Coordinates
- 43.820, -96.720
Thunderstorm Wind, Stanley
- When
- July 11, 4:15 PM CST
- Where
- Stanley County
- Measured
- 54 kt (62 mph)
- Coordinates
- 44.370, -101.220
Thunderstorm Wind, Stanley
- When
- July 11, 4:30 PM CST
- Where
- Stanley County
- Measured
- 54 kt (62 mph)
- Injuries
- 2 direct, 0 indirect
- Coordinates
- 44.370, -100.450
Thunderstorm Wind, Hughes
- When
- July 11, 4:43 PM CST
- Where
- Hughes County
- Measured
- 70 kt (81 mph)
- Coordinates
- 44.370, -100.330
Hail, McCook
- When
- July 11, 6:30 PM CST
- Where
- McCook County
- Measured
- 1.75 in hail
- Coordinates
- 43.730, -97.380
Thunderstorm Wind, Hutchinson
- When
- July 11, 8:00 PM CST
- Where
- Hutchinson County
- Measured
- 56 kt (64 mph)
- Coordinates
- 43.170, -97.500
Hail, McCook
- When
- July 11, 8:01 PM CST
- Where
- McCook County
- Measured
- 1.75 in hail
- Coordinates
- 43.730, -97.150
Thunderstorm Wind, Clay
- When
- July 11, 8:25 PM CST
- Where
- Clay County
- Measured
- 52 kt (60 mph)
- Coordinates
- 43.080, -97.170
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
- Tornadoes and Hail in Michigan, July 11, 1987
- Tornadoes and Hail in Iowa, July 11, 1987
- Tornado and Hail in Minnesota, July 11, 1987
- Damaging Winds in Wisconsin, July 11, 1987
- Damaging Winds in New York, July 11, 1987
- Hail and Damaging Winds in North Carolina, July 11, 1987
- Damaging Winds in Nebraska, July 11, 1987
- Damaging Winds in Pennsylvania, July 11, 1987
- Damaging Winds in Kansas, July 11, 1987
- Damaging Winds in Ohio, July 11, 1987
- Damaging Winds in Indiana, July 11, 1987
- Hail in New Jersey, July 11, 1987
More
Every storm in South Dakota in 1987Every state in 1987This day in weather historyThe tornado archive for South Dakota, 1987Warnings in South Dakota, July 1987
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: 10126877, 10126878, 10126879, 10126880, 10126881, 10126882, 10126883, 10126884, 10126885, 10126886, 10126887, 10126888, 10126889, 10126890, 10126891, 10126892.