Hail, Marshall
- When
- July 20, 4:25 PM CST
- Where
- Marshall County, 2 mi NE of Eden
- Measured
- 1.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 45.630, -97.400
Tornado and Hail in South Dakota, July 20, 1998
1 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
- 2
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.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 hail, 1 tornado. Local standard time, as filed.
Tornado, Day
- When
- July 20, 5:08 PM CST to 5:15 PM CST
- Where
- Day County, Grenville to 4 mi E of Grenville
- Rating
- F0
- Path length
- 3 mi
- Path width
- 10 yd
- Reported by
- NEWSPAPER
- Coordinates
- 45.500, -97.330
A landspout tornado touched down northeast of Grenville near Enemy Swim Lake. The tornado pulled up two fence posts, some water, and some hay was spread around as it moved southeast. Path length and width were estimated.
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
- Heat in Pennsylvania, July 20 to 23, 1998
- Heat in Maryland, July 20 to 23, 1998
- Heat in Arkansas, July 20 to 31, 1998
- Hail and Damaging Winds in Minnesota, July 20, 1998
- Flooding and Hail in Wisconsin, July 20, 1998
- Heat in Oklahoma, July 20, 1998
- Flash Flooding in Kentucky, July 20, 1998
- Flash Flood and Hail in North Carolina, July 20 to 21, 1998
- Hail and Damaging Winds in Wisconsin, July 20, 1998
- Hail and Damaging Winds in Georgia, July 20, 1998
- Hail and Damaging Wind in Iowa, July 20, 1998
- Heat in Delaware, July 20 to 24, 1998
More
Every storm in South Dakota in 1998Every state in 1998This day in weather historyThe tornado archive for South Dakota, 1998Warnings in South Dakota, July 1998
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: 5661995, 5661994.