Hail, Roberts
- When
- July 21, 3:00 PM CST
- Where
- Roberts County
- Measured
- 1.75 in hail
- Coordinates
- 45.500, -97.130
Hail and Damaging Winds in South Dakota, July 21, 1981
5 hail, 2 thunderstorm wind, 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
5 hail, 2 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Roberts
- When
- July 21, 3:00 PM CST
- Where
- Roberts County
- Coordinates
- 45.500, -97.130
Hail, Hamlin
- When
- July 21, 3:20 PM CST
- Where
- Hamlin County
- Measured
- 1.75 in hail
- Coordinates
- 44.720, -97.030
Thunderstorm Wind, Hamlin
- When
- July 21, 3:20 PM CST
- Where
- Hamlin County
- Coordinates
- 44.720, -97.030
Hail, Deuel
- When
- July 21, 4:00 PM CST
- Where
- Deuel County
- Measured
- 1.75 in hail
- Coordinates
- 44.720, -96.880
Hail, Grant
- When
- July 21, 5:00 PM CST
- Where
- Grant County
- Measured
- 1.75 in hail
- Coordinates
- 45.050, -96.680
Hail, Oglala Lakota
- When
- July 21, 7:10 PM CST
- Where
- Oglala Lakota County
- Measured
- 1.75 in hail
- Coordinates
- 43.180, -102.750
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
- Tornadoes and Hail in Oklahoma, July 21, 1981
- Tornadoes and Hail in Nebraska, July 21, 1981
- Hail and Damaging Winds in North Dakota, July 21, 1981
- Hail and Damaging Winds in Arkansas, July 21, 1981
- Hail and Damaging Winds in Minnesota, July 21, 1981
- Damaging Winds in Iowa, July 21, 1981
- Damaging Wind in Delaware, July 21, 1981
- Damaging Wind in Utah, July 21, 1981
- Damaging Wind in Alabama, July 21, 1981
- Damaging Wind in Arizona, July 21, 1981
More
Every storm in South Dakota in 1981Every state in 1981This 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: 10123438, 10123439, 10123440, 10123441, 10123442, 10123443, 10123444.