Tornadoes and Hail in South Dakota, August 5, 1987

Name: Tornadoes and Hail in South Dakota, August 5, 1987
Start: 1987-08-05T15:20
End: 1987-08-05T22:25
Location: South Dakota

August 5, 1987 · NWS FSD · 29 events in 17 counties and zones

16 thunderstorm wind, 7 hail, 6 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

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $250,000
Crop damage: None recorded
Events: 29

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

16 thunderstorm wind, 7 hail, 6 tornado. Local standard time, as filed.

Hail, Sully

When: August 5, 3:20 PM CST
Where: Sully County
Measured: 1.75 in hail
Coordinates: 44.620, -100.330

Thunderstorm Wind, Sully

When: August 5, 4:00 PM CST
Where: Sully County
Measured: 61 kt (70 mph)
Coordinates: 44.600, -100.000

Tornado, Hughes

When: August 5, 4:20 PM CST
Where: Hughes County
Rating: F0
Path length: 4 mi
Path width: 10 yd
Coordinates: 44.370, -100.200

Hail, Potter

When: August 5, 4:20 PM CST
Where: Potter County
Measured: 1.75 in hail
Coordinates: 45.350, -99.950

Hail, Edmunds

When: August 5, 4:39 PM CST
Where: Edmunds County
Measured: 1.75 in hail
Coordinates: 45.570, -99.480

Hail, Edmunds

When: August 5, 4:55 PM CST
Where: Edmunds County
Measured: 1.75 in hail
Coordinates: 45.570, -99.250

Hail, Edmunds

When: August 5, 5:00 PM CST
Where: Edmunds County
Measured: 4.5 in hail
Coordinates: 45.450, -99.670

Thunderstorm Wind, Faulk

When: August 5, 5:24 PM CST
Where: Faulk County
Measured: 52 kt (60 mph)
Coordinates: 45.150, -98.750

Tornado, Lyman

When: August 5, 5:35 PM CST
Where: Lyman County
Rating: F0
Path length: 0.1 mi
Path width: 30 yd
Coordinates: 43.900, -99.930

Thunderstorm Wind, Brown

When: August 5, 5:38 PM CST
Where: Brown County
Measured: 54 kt (62 mph)
Coordinates: 45.470, -98.500

Tornado, Lyman

When: August 5, 5:40 PM CST
Where: Lyman County
Rating: F2
Path length: 1.2 mi
Path width: 80 yd
Property damage: $250,000
Coordinates: 44.020, -99.870

Tornado, Lyman

When: August 5, 5:44 PM CST
Where: Lyman County
Rating: F1
Path length: 0.1 mi
Path width: 60 yd
Coordinates: 43.920, -99.780

Thunderstorm Wind, Brown

When: August 5, 5:57 PM CST
Where: Brown County
Measured: 52 kt (60 mph)
Coordinates: 45.320, -98.570

Thunderstorm Wind, Clark

When: August 5, 6:08 PM CST
Where: Clark County
Measured: 50 kt (58 mph)
Coordinates: 44.700, -97.720

Tornado, Lyman

When: August 5, 6:15 PM CST
Where: Lyman County
Rating: F0
Path length: 0.2 mi
Path width: 20 yd
Coordinates: 43.880, -99.720

Thunderstorm Wind, Beadle

When: August 5, 6:26 PM CST
Where: Beadle County
Measured: 66 kt (76 mph)
Coordinates: 44.350, -98.220

Tornado, Lyman

When: August 5, 6:35 PM CST
Where: Lyman County
Rating: F0
Path length: 0.2 mi
Path width: 20 yd
Coordinates: 43.780, -99.580

Thunderstorm Wind, Beadle

When: August 5, 6:44 PM CST
Where: Beadle County
Measured: 50 kt (58 mph)
Coordinates: 44.350, -98.220

Thunderstorm Wind, Brown

When: August 5, 6:45 PM CST
Where: Brown County
Measured: 52 kt (60 mph)
Coordinates: 45.880, -98.380

Thunderstorm Wind, Beadle

When: August 5, 6:52 PM CST
Where: Beadle County
Measured: 66 kt (76 mph)
Coordinates: 44.180, -97.980

Thunderstorm Wind, Brule

When: August 5, 7:09 PM CST
Where: Brule County
Measured: 53 kt (61 mph)
Coordinates: 43.800, -99.330

Hail, Brule

When: August 5, 7:20 PM CST
Where: Brule County
Measured: 2.75 in hail
Coordinates: 43.750, -98.950

Hail, Tripp

When: August 5, 8:00 PM CST
Where: Tripp County
Measured: 1.75 in hail
Coordinates: 43.580, -99.680

Thunderstorm Wind, Hamlin

When: August 5, 8:30 PM CST
Where: Hamlin County
Measured: 80 kt (92 mph)
Coordinates: 44.580, -97.100

Thunderstorm Wind, Davison

When: August 5, 8:50 PM CST
Where: Davison County
Measured: 58 kt (67 mph)
Coordinates: 43.720, -98.020

Thunderstorm Wind, Hutchinson

When: August 5, 9:00 PM CST
Where: Hutchinson County
Measured: 58 kt (67 mph)
Coordinates: 43.480, -97.680

Thunderstorm Wind, Gregory

When: August 5, 9:00 PM CST
Where: Gregory County
Measured: 70 kt (81 mph)
Coordinates: 43.250, -99.150

Thunderstorm Wind, Bon Homme

When: August 5, 10:00 PM CST
Where: Bon Homme County
Measured: 60 kt (69 mph)
Coordinates: 42.850, -97.880

Thunderstorm Wind, Yankton

When: August 5, 10:25 PM CST
Where: Yankton County
Measured: 52 kt (60 mph)
Coordinates: 42.870, -97.380

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in South Dakota in 1987 Every state in 1987 This day in weather history The tornado archive for South Dakota, 1987 Warnings in South Dakota, August 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: 10127147, 10127148, 10127149, 10127150, 10127151, 10127152, 10127153, 10127154, 10127155, 10127156, 10127157, 10127158, 10127159, 10123542, 10123543, 10123544, 10123545, 10123546, 10123547, 10123548, 10123549, 10123550, 10123551, 10123552, 10123553, 10123554, 10123555, 10123556, 10123557.