Thunderstorm Wind, Lyman
- When
- August 4, 6:40 PM CST
- Where
- Lyman County, 9.72 mi N of Kennebec
- Measured
- 52 kt (60 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 44.040, -99.890
Hail and Damaging Winds in South Dakota, August 4, 2023
Weak slow moving low pressure drifting into central South Dakota supported the development of isolated severe weather, the strongest storm of which produced an 84 mph wind gust, which was recorded by a public weather station 4 miles southwest of Kennebec.
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
- 3
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 ABR wrote it up.
Weak slow moving low pressure drifting into central South Dakota supported the development of isolated severe weather, the strongest storm of which produced an 84 mph wind gust, which was recorded by a public weather station 4 miles southwest of Kennebec.
The radar
The Aberdeen radar (KABR), 196 km away, was scanning. The volume nearest the first event began at 00:38 UTC.
Event by event
2 thunderstorm wind, 1 hail. Local standard time, as filed.
Hail, Lyman
- When
- August 4, 6:47 PM CST
- Where
- Lyman County, 9.93 mi NNE of Presho Muni Arpt
- Measured
- 1.25 in hail
- Reported by
- Trained Spotter
- Coordinates
- 44.040, -99.920
Thunderstorm Wind, Lyman
- When
- August 4, 7:05 PM CST
- Where
- Lyman County, 3.72 mi SW of Kennebec
- Measured
- 73 kt (84 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 43.860, -99.920
What these are
- 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.
- 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.
The same day elsewhere
- Excessive Heat in Arizona, August 4, 2023
- Tornado and Damaging Wind in Missouri, August 4, 2023
- Flash Flooding and Flood in Kentucky, August 4, 2023
- Flash Flooding in Tennessee, August 4, 2023
- Flash Flooding and Hail in Vermont, August 4, 2023
- Flash Flood and Damaging Winds in Georgia, August 4 to 8, 2023
- Hail and Damaging Winds in New York, August 4, 2023
- Flash Flood in New York, August 4, 2023
- Hail and Damaging Winds in Pennsylvania, August 4, 2023
- Hail and Damaging Winds in New York, August 4, 2023
- Excessive Heat in Louisiana, August 4, 2023
- Damaging Winds in Alabama, August 4 to 8, 2023
More
Every storm in South Dakota in 2023Every state in 2023This day in weather historyWarnings in South Dakota, August 2023
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 2026-09-30. Each event’s entry at NCEI: 1113483, 1113482, 1113484.