South Dakota, 1984Tornadoes and Hail in South Dakota, May 18, 1984
May 18, 1984 · 6 events in 5 counties and zones
4 tornado, 2 hail, as filed by the National Weather Service.
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
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 6
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.
Tornado, Jerauld
- When
- May 18, 2:25 PM CST
- Where
- Jerauld County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 44.180, -98.780
Tornado, Jerauld
- When
- May 18, 2:55 PM CST
- Where
- Jerauld County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 44.170, -98.680
Tornado, Aurora
- When
- May 18, 3:00 PM CST
- Where
- Aurora County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 43.900, -98.570
Tornado, Hamlin
- When
- May 18, 3:45 PM CST
- Where
- Hamlin County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 44.620, -97.370
Hail, Clark
- When
- May 18, 4:50 PM CST
- Where
- Clark County
- Measured
- 1 in hail
- Coordinates
- 44.850, -97.720
Hail, Codington
- When
- May 18, 5:25 PM CST
- Where
- Codington County
- Measured
- 0.75 in hail
- Coordinates
- 44.850, -97.230
- 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.
- Tornadoes and Damaging Winds in Michigan, May 18, 19841 death · 2 injured · $750 · F0 · 5 events
- Tornadoes and Damaging Winds in Colorado, May 18, 1984$28,000 · F2 · 6 events
- Tornado in Nebraska, May 18, 1984$25,000 · F1 · 1 event
- Hail and Damaging Winds in Illinois, May 18, 19841.75 in hail · 4 events
- Damaging Winds in Wisconsin, May 18, 198455 kt wind · 3 events
- Tornadoes in Texas, May 18, 1984F0 · 2 events
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: 10125839, 10125840, 10125841, 10125842, 10125843, 10125844.