Hail, Osage
- When
- August 20, 1:30 PM CST
- Where
- Osage County, Pawhuska
- Measured
- 0.75 in hail
- Coordinates
- 36.670, -96.330
Hail and Damaging Winds in Oklahoma, August 20, 1997
11 thunderstorm wind, 1 hail, 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
- $6,000
- Crop damage
- None recorded
- Events
- 12
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 Tulsa radar (KINX), 88 km away, was scanning. The volume nearest the first event began at 19:31 UTC.
Event by event
11 thunderstorm wind, 1 hail. Local standard time, as filed.
Thunderstorm Wind, Osage
- When
- August 20, 1:30 PM CST
- Where
- Osage County, Pawhuska
- Measured
- 52 kt (60 mph)
- Coordinates
- 36.670, -96.330
Thunderstorm Wind, Osage
- When
- August 20, 2:00 PM CST
- Where
- Osage County, Okesa
- Measured
- 52 kt (60 mph)
- Coordinates
- 36.720, -96.130
Thunderstorm Wind, Washington
- When
- August 20, 2:00 PM CST
- Where
- Washington County, Dewey
- Measured
- 52 kt (60 mph)
- Property damage
- $500
- Coordinates
- 36.800, -95.930
Thunderstorm Wind, Washington
- When
- August 20, 2:00 PM CST
- Where
- Washington County, Bartlesville
- Property damage
- $100
- Coordinates
- 36.750, -96.000
Thunderstorm Wind, Nowata
- When
- August 20, 2:26 PM CST
- Where
- Nowata County, Delaware
- Property damage
- $100
- Coordinates
- 36.780, -95.630
Thunderstorm Wind, Tulsa
- When
- August 20, 2:38 PM CST
- Where
- Tulsa County, 4 mi S of Collinsville
- Measured
- 52 kt (60 mph)
- Coordinates
- 36.320, -95.830
Thunderstorm Wind, Rogers
- When
- August 20, 3:00 PM CST
- Where
- Rogers County, 1 mi S of Catoosa
- Measured
- 65 kt (75 mph)
- Property damage
- $5,000
- Coordinates
- 36.170, -95.750
Thunderstorm Wind, Mayes
- When
- August 20, 3:45 PM CST
- Where
- Mayes County, Rose
- Property damage
- $100
- Coordinates
- 36.220, -95.030
Thunderstorm Wind, Cherokee
- When
- August 20, 3:52 PM CST
- Where
- Cherokee County, Scraper
- Measured
- 52 kt (60 mph)
- Coordinates
- 36.100, -94.830
Thunderstorm Wind, Adair
- When
- August 20, 4:10 PM CST
- Where
- Adair County, Westville
- Measured
- 52 kt (60 mph)
- Coordinates
- 35.980, -94.570
Thunderstorm Wind, Adair
- When
- August 20, 4:24 PM CST
- Where
- Adair County, Westville
- Measured
- 52 kt (60 mph)
- Coordinates
- 35.980, -94.570
Severe thunderstorms moved across northeast Oklahoma during the afternoon of August 20th. Strong thunderstorm winds downed several power lines in Bartlesville and several large tree limbs in Delaware, and 6 to 8 inch diameter tree limbs were blown down in Rose. The top was blown out of a large tree onto a house by 70 to 80 mile an hour winds 1 mile south of Catoosa, and power lines were downed and a plate glass window was blown out of a building by 60 mile an hour winds in Dewey. Large tree limbs were blown down by 60 mile an hour winds in Pawhuska, and thunderstorm winds also gusted to 60 miles an hour in Okesa, 4 miles south of Collinsville, in Scraper, and in Westville. Dime size hail fell at Pawhuska.
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
- Heavy Rain in Connecticut, August 20 to 21, 1997
- Flash Flood in New Jersey, August 20 to 21, 1997
- Damaging Winds in Utah, August 20, 1997
- Flash Flood in New Jersey, August 20 to 21, 1997
- Hail and Damaging Winds in Texas, August 20, 1997
- Flash Flood in New Jersey, August 20 to 21, 1997
- Flash Flood in New Jersey, August 20 to 21, 1997
- Damaging Winds in Texas, August 20, 1997
- Hail and Damaging Winds in Oklahoma, August 20, 1997
- Tornado in Florida, August 20, 1997
- Damaging Winds in North Carolina, August 20, 1997
- Flood in Michigan, August 20 to 22, 1997
More
Every storm in Oklahoma in 1997Every state in 1997This day in weather historyWarnings in Oklahoma, August 1997
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: 5621325, 5621326, 5621327, 5621328, 5621329, 5621330, 5621331, 5621332, 5621333, 5619517, 5619518, 5619519.