Thunderstorm Wind, Lyman
- When
- July 18, 12:30 AM CST
- Where
- Lyman County
- Coordinates
- 43.900, -100.050
Tornado and Hail in South Dakota, July 18, 1983
6 thunderstorm wind, 1 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
- $2.5 million
- Crop damage
- None recorded
- Events
- 8
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, 1 hail. Local standard time, as filed.
Thunderstorm Wind, Lyman
- When
- July 18, 12:50 AM CST
- Where
- Lyman County
- Coordinates
- 43.880, -99.600
Thunderstorm Wind, Davison
- When
- July 18, 12:55 AM CST
- Where
- Davison County
- Measured
- 69 kt (79 mph)
- Coordinates
- 43.720, -98.020
Thunderstorm Wind, Clay
- When
- July 18, 1:00 AM CST
- Where
- Clay County
- Coordinates
- 42.900, -97.000
Thunderstorm Wind, Lyman
- When
- July 18, 1:05 AM CST
- Where
- Lyman County
- Measured
- 65 kt (75 mph)
- Coordinates
- 43.900, -100.050
Tornado, Codington
- When
- July 18, 3:00 AM CST
- Where
- Codington County
- Rating
- F3
- Path length
- 0.5 mi
- Path width
- 100 yd
- Property damage
- $2.5 million
- Coordinates
- 44.900, -97.170
Hail, Fall River
- When
- July 18, 4:35 PM CST
- Where
- Fall River County
- Measured
- 1.75 in hail
- Coordinates
- 43.230, -103.550
Thunderstorm Wind, Pennington
- When
- July 18, 4:35 PM CST
- Where
- Pennington County
- Measured
- 52 kt (60 mph)
- Coordinates
- 44.080, -103.220
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 in Georgia, July 18, 1983
- Tornado and Hail in Florida, July 18, 1983
- Damaging Winds in Iowa, July 18, 1983
- Hail and Damaging Wind in North Dakota, July 18, 1983
- Damaging Winds in Wisconsin, July 18, 1983
- Damaging Winds in Alabama, July 18, 1983
- Damaging Winds in Ohio, July 18, 1983
- Tornado in Massachusetts, July 18, 1983
- Damaging Wind in Wyoming, July 18, 1983
- Damaging Wind in North Carolina, July 18, 1983
- Damaging Wind in Kentucky, July 18, 1983
More
Every storm in South Dakota in 1983Every state in 1983This day in weather historyThe tornado archive for South Dakota, 1983
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: 10125772, 10125773, 10125774, 10125775, 10125776, 10125777, 10125778, 10125779.