Hail, Pennington
- When
- July 20, 5:00 PM MST
- Where
- Pennington County, 2.79 mi E of Rockerville
- Measured
- 1 in hail
- Reported by
- Public
- Coordinates
- 43.957, -103.304
Hail and Damaging Wind in South Dakota, July 20, 2016
A thunderstorm developed over the central Black Hills and moved east onto the plains. The storm produced large hail and strong winds east of Rockerville.
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.
What happened
The episode as NWS UNR wrote it up.
A thunderstorm developed over the central Black Hills and moved east onto the plains. The storm produced large hail and strong winds east of Rockerville.
The radar
The Rapid City radar (KUDX), 42 km away, was scanning. The volume nearest the first event began at 00:02 UTC.
Event by event
1 hail, 1 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Pennington
- When
- July 20, 5:00 PM MST
- Where
- Pennington County, 2.79 mi E of Rockerville
- Measured
- 52 kt (60 mph) estimated gust
- Reported by
- Public
- Coordinates
- 43.957, -103.304
Wind gusts were estimated at 60 mph.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Damaging Winds in Minnesota, July 20 to 21, 2016
- Heat in Oklahoma, July 20 to 26, 2016
- Flash Flood and Lightning Strikes in Arizona, July 20 to 22, 2016
- Heat in Tennessee, July 20, 2016
- Tornado and Hail in North Dakota, July 20, 2016
- Hail and Damaging Wind in Wisconsin, July 20, 2016
- Excessive Heat in Iowa, July 20 to 23, 2016
- Dust Storm in Arizona, July 20, 2016
- Damaging Winds in Alabama, July 20, 2016
- Excessive Heat in Minnesota, July 20 to 22, 2016
- Lightning Strike in Florida, July 20, 2016
- Hail and Damaging Winds in Georgia, July 20, 2016
More
Every storm in South Dakota in 2016Every state in 2016This day in weather historyWarnings in South Dakota, July 2016
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 2026-10-01. Each event’s entry at NCEI: 644654, 644655.