Hail, Mellette
- When
- August 20, 5:30 PM CST
- Where
- Mellette County
- Measured
- 1.75 in hail
- Coordinates
- 43.570, -100.750
Hail and Damaging Winds in South Dakota, August 20, 1973
4 thunderstorm wind, 3 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
- None recorded
- 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
4 thunderstorm wind, 3 hail. Local standard time, as filed.
Thunderstorm Wind, Mellette
- When
- August 20, 5:30 PM CST
- Where
- Mellette County
- Coordinates
- 43.570, -100.750
Thunderstorm Wind, Tripp
- When
- August 20, 7:00 PM CST
- Where
- Tripp County
- Measured
- 62 kt (71 mph)
- Coordinates
- 43.400, -100.200
Hail, Tripp
- When
- August 20, 7:30 PM CST
- Where
- Tripp County
- Measured
- 1.75 in hail
- Coordinates
- 43.370, -99.870
Hail, Codington
- When
- August 20, 7:30 PM CST
- Where
- Codington County
- Measured
- 0.75 in hail
- Coordinates
- 44.880, -97.450
Thunderstorm Wind, Codington
- When
- August 20, 7:30 PM CST
- Where
- Codington County
- Coordinates
- 44.880, -97.450
Thunderstorm Wind, Tripp
- When
- August 20, 7:37 PM CST
- Where
- Tripp County
- Coordinates
- 43.200, -100.130
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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Hail in Georgia, August 20, 1973
- Damaging Winds in Indiana, August 20, 1973
- Tornado and Damaging Winds in Ohio, August 20, 1973
- Damaging Winds in South Carolina, August 20, 1973
- Damaging Wind in California, August 20, 1973
- Damaging Wind in Kentucky, August 20, 1973
- Damaging Wind in Tennessee, August 20, 1973
- Damaging Wind in North Carolina, August 20, 1973
- Damaging Wind in Arizona, August 20, 1973
- Damaging Wind in Utah, August 20, 1973
- Damaging Wind in Nevada, August 20, 1973
More
Every storm in South Dakota in 1973Every state in 1973This day in weather history
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: 10112420, 10112421, 10112422, 10112423, 10112424, 10112425, 10112426.