Thunderstorm Wind, Sully
- When
- August 24, 4:45 AM CST
- Where
- Sully County, 1 mi W of Onida
- Measured
- 61 kt (70 mph)
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 44.700, -100.080
A line of severe thunderstorms moved rapidly southeast across Sully, Hyde, and Hand counties in the morning hours producing destructive winds of up to 100 mph and hail up to the size of baseballs. The wind and hail damaged or destroyed a wide swath of sunflowers and corn beginning from just to the west and north of Onida on east to Holabird, Highmore, to the south of Ree Heights and Miller…
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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 episode as NWS ABR wrote it up.
A line of severe thunderstorms moved rapidly southeast across Sully, Hyde, and Hand counties in the morning hours producing destructive winds of up to 100 mph and hail up to the size of baseballs. The wind and hail damaged or destroyed a wide swath of sunflowers and corn beginning from just to the west and north of Onida on east to Holabird, Highmore, to the south of Ree Heights and Miller before finally exiting the southeast part of Hand county. The wind and hail also damaged or destroyed many gardens, broke numerous vehicle and structure windows, along with causing a lot of damage to the vehicles and the structures. Four highline poles south of Highmore on Highway 47 were snapped off. The school in Highmore had twenty screens shredded by the hail and the wind. At a farm northeast of Onida, a grain bin was blown over 200 yards. The winds also blew the roof off a barn, moved a garage several inches off its foundation east of Onida, and blew a trailer home over near Holabird. Lastly, a countless number of tree limbs and trees were downed by the high winds.
The Aberdeen radar (KABR), 156 km away, was scanning. The volume nearest the first event began at 10:47 UTC.
9 hail, 2 thunderstorm wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 1998Every state in 1998This day in weather historyWarnings in South Dakota, August 1998
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: 5664585, 5664586, 5664588, 5664828, 5664587, 5664827, 5664829, 5664832, 5664830, 5664831, 5664833.