Thunderstorm Wind, Tulsa
- When
- July 20, 4:50 PM CST
- Where
- Tulsa County, Broken Arrow
- Measured
- 52 kt (60 mph)
- Coordinates
- 36.050, -95.780
Flash Flood and Hail in Oklahoma, July 20, 1997
5 hail, 4 thunderstorm wind, 1 flash flood, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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
- $2,000
- Crop damage
- None recorded
- Events
- 10
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), 24 km away, was scanning. The volume nearest the first event began at 22:48 UTC.
Event by event
5 hail, 4 thunderstorm wind, 1 flash flood. Local standard time, as filed.
Thunderstorm Wind, Tulsa
- When
- July 20, 4:55 PM CST
- Where
- Tulsa County, Broken Arrow
- Measured
- 61 kt (70 mph)
- Coordinates
- 36.050, -95.780
Hail, Tulsa
- When
- July 20, 4:55 PM CST
- Where
- Tulsa County, Broken Arrow
- Measured
- 0.75 in hail
- Coordinates
- 36.050, -95.780
Hail, Tulsa
- When
- July 20, 5:05 PM CST
- Where
- Tulsa County, Tulsa
- Measured
- 0.75 in hail
- Coordinates
- 36.150, -95.950
Thunderstorm Wind, Tulsa
- When
- July 20, 5:15 PM CST
- Where
- Tulsa County, Broken Arrow
- Property damage
- $2,000
- Coordinates
- 36.050, -95.780
Hail, Tulsa
- When
- July 20, 5:19 PM CST
- Where
- Tulsa County, Tulsa
- Measured
- 1 in hail
- Coordinates
- 36.150, -95.950
Hail, Tulsa
- When
- July 20, 5:25 PM CST
- Where
- Tulsa County, Tulsa
- Measured
- 1.25 in hail
- Coordinates
- 36.150, -95.950
Hail, Tulsa
- When
- July 20, 5:28 PM CST
- Where
- Tulsa County, Tulsa
- Measured
- 0.88 in hail
- Coordinates
- 36.150, -95.950
Flash Flood, Tulsa
- When
- July 20, 5:40 PM CST to 6:45 PM CST
- Where
- Tulsa County, Tulsa
- Coordinates
- 36.121, -95.941 (the zone’s center; the record gives no point)
Thunderstorm Wind, Tulsa
- When
- July 20, 6:05 PM CST
- Where
- Tulsa County, Owasso
- Measured
- 52 kt (60 mph)
- Coordinates
- 36.270, -95.850
A severe thunderstorm moved slowly north northwest through Tulsa County and produced large hail and damaging winds. Thunderstorm winds up to 70 miles an hour downed trees, power lines, and fences in Broken Arrow, mainly between 71st and 101st Streets South and between 145th and 161st East Avenue, and thunderstorm winds gusted to 60 miles an hour in Owasso. Dime to half dollar size hail fell at various locations in the city of Tulsa, and dime size hail fell in Broken Arrow. Very heavy rainfall produced by the storm also resulted in flash flooding in the city of Tulsa. A creek flooded onto Memorial Drive between 11th and 15th Streets South, and street flooding occurred at 51st Street South and 129th East Avenue.
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.
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Heat in Missouri, July 20, 1997
- Lightning Strikes and Heavy Rain in Wisconsin, July 20 to 21, 1997
- Damaging Wind in Iowa, July 20, 1997
- Tornado in Iowa, July 20, 1997
- Damaging Wind in Iowa, July 20, 1997
- Damaging Wind in Iowa, July 20, 1997
- Damaging Wind in Iowa, July 20, 1997
- Lightning Strike in Florida, July 20, 1997
- Tornado in Minnesota, July 20 to 21, 1997
- Tornadoes and Hail in Minnesota, July 20, 1997
- Funnel Clouds in Wisconsin, July 20, 1997
- Damaging Winds in South Dakota, July 20, 1997
More
Every storm in Oklahoma in 1997Every state in 1997This day in weather historyWarnings in Oklahoma, July 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: 5621026, 5621027, 5621028, 5621029, 5621030, 5621031, 5621032, 5621033, 5621034, 5621035.