Thunderstorm Wind, Lyman
- When
- August 20, 12:05 AM CST
- Where
- Lyman County
- Coordinates
- 44.070, -100.050
Tornado and Damaging Winds in South Dakota, August 20, 1980
6 thunderstorm wind, 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
- 0
- Property damage
- $25,000
- Crop damage
- None recorded
- Events
- 7
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, 1 tornado. Local standard time, as filed.
Thunderstorm Wind, Brule
- When
- August 20, 12:27 AM CST
- Where
- Brule County
- Measured
- 62 kt (71 mph)
- Coordinates
- 43.800, -99.330
Thunderstorm Wind, Edmunds
- When
- August 20, 2:10 AM CST
- Where
- Edmunds County
- Coordinates
- 45.450, -99.030
Thunderstorm Wind, Edmunds
- When
- August 20, 2:15 AM CST
- Where
- Edmunds County
- Coordinates
- 45.280, -99.030
Thunderstorm Wind, Brown
- When
- August 20, 2:20 AM CST
- Where
- Brown County
- Measured
- 50 kt (58 mph)
- Coordinates
- 45.450, -98.420
Tornado, Brown
- When
- August 20, 2:26 AM CST
- Where
- Brown County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 33 yd
- Property damage
- $25,000
- Coordinates
- 45.330, -98.420
Thunderstorm Wind, Spink
- When
- August 20, 2:45 AM CST
- Where
- Spink County
- Coordinates
- 45.150, -98.330
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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Damaging Winds in Missouri, August 20, 1980
- Damaging Winds in Iowa, August 20, 1980
- Damaging Winds in Oklahoma, August 20, 1980
- Damaging Winds in Wisconsin, August 20, 1980
- Damaging Winds in Georgia, August 20, 1980
- Damaging Winds in Illinois, August 20, 1980
- Damaging Winds in Nebraska, August 20, 1980
- Damaging Winds in Alabama, August 20, 1980
- Damaging Winds in Virginia, August 20, 1980
- Damaging Wind in Minnesota, August 20, 1980
- Damaging Wind in Colorado, August 20, 1980
- Damaging Wind in Kansas, August 20, 1980
More
Every storm in South Dakota in 1980Every state in 1980This day in weather historyThe tornado archive for South Dakota, 1980
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: 10126528, 10126529, 10126530, 10126531, 10126532, 10126533, 10126534.