Hail, Oglala Lakota
- When
- August 4, 6:20 PM MST
- Where
- Oglala Lakota County, 7.05 mi W of Rockyford
- Measured
- 1.5 in hail
- Reported by
- Trained Spotter
- Coordinates
- 43.510, -102.640
Hail lasted 15 minutes with the largest stone measuring 1.5 inches.
Storms developed along the Black Hills just to the west and south of Sturgis during the rally. A storm coming off the Black Hills was able to produce a funnel cloud on the west side of Rapid City that had a lot of exposure.
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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 UNR wrote it up.
Storms developed along the Black Hills just to the west and south of Sturgis during the rally. A storm coming off the Black Hills was able to produce a funnel cloud on the west side of Rapid City that had a lot of exposure.
The Rapid City radar (KUDX), 70 km away, was scanning. The volume nearest the first event began at 01:17 UTC.
6 hail, 1 funnel cloud. Local standard time, as filed.
Hail lasted 15 minutes with the largest stone measuring 1.5 inches.
Trained spotter confirmed large hail up to 1.5 inches.
Public reported pea to nickel size hail.
Multiple reports from public, NWS employees and trained spotters of a funnel cloud over west side Rapid City.
Dime to Quarter hail report from trained spotter.
Received an mPING report of sub severe hail.
Very gusty winds from all directions, but less than 60 mph. Very heavy rainfall. Hail report of one inch.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2025Every state in 2025This day in weather historyWarnings in South Dakota, August 2025
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 2026-10-01. Each event’s entry at NCEI: 1291907, 1291908, 1291909, 1291910, 1291911, 1291912, 1291913.