Hail, Tripp
- When
- May 20, 3:00 PM CST
- Where
- Tripp County
- Measured
- 1.75 in hail
- Coordinates
- 43.430, -100.080
Tornado and Hail in South Dakota, May 20, 1974
8 hail, 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
- None recorded
- Crop damage
- None recorded
- Events
- 9
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
8 hail, 1 tornado. Local standard time, as filed.
Hail, Tripp
- When
- May 20, 3:20 PM CST
- Where
- Tripp County
- Measured
- 1.75 in hail
- Coordinates
- 43.100, -100.220
Hail, Lyman
- When
- May 20, 3:30 PM CST
- Where
- Lyman County
- Measured
- 4.5 in hail
- Coordinates
- 43.900, -99.870
Hail, Hyde
- When
- May 20, 4:00 PM CST
- Where
- Hyde County
- Measured
- 1.75 in hail
- Coordinates
- 44.250, -99.450
Hail, Hyde
- When
- May 20, 4:20 PM CST
- Where
- Hyde County
- Measured
- 1.75 in hail
- Coordinates
- 44.520, -99.430
Hail, Tripp
- When
- May 20, 4:30 PM CST
- Where
- Tripp County
- Measured
- 1.75 in hail
- Coordinates
- 43.170, -100.030
Hail, Lyman
- When
- May 20, 4:30 PM CST
- Where
- Lyman County
- Measured
- 1.75 in hail
- Coordinates
- 43.900, -99.870
Hail, Beadle
- When
- May 20, 6:30 PM CST
- Where
- Beadle County
- Measured
- 1.75 in hail
- Coordinates
- 44.400, -98.470
Tornado, Roberts
- When
- May 20, 8:35 PM CST
- Where
- Roberts County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 45.780, -97.020
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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
- Tornadoes and Damaging Winds in North Dakota, May 20, 1974
- Tornado and Hail in Missouri, May 20, 1974
- Tornadoes and Hail in Nebraska, May 20, 1974
- Tornado and Hail in Texas, May 20, 1974
- Hail and Damaging Wind in Tennessee, May 20, 1974
- Damaging Winds in Alabama, May 20, 1974
- Hail in Kansas, May 20, 1974
- Hail in Georgia, May 20, 1974
More
Every storm in South Dakota in 1974Every state in 1974This day in weather historyThe tornado archive for South Dakota, 1974
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: 10113522, 10113523, 10113524, 10113525, 10113526, 10113527, 10113528, 10113529, 10113530.