Hail, Osage
- When
- May 7, 8:00 PM CST
- Where
- Osage County, 3 mi E of Ponca City
- Measured
- 0.75 in hail
- Coordinates
- 36.700, -96.450
Tornadoes and Flash Flooding in Oklahoma, May 7 to 8, 1997
7 hail, 2 tornado, 2 flash flood, 2 thunderstorm wind, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 2 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
- None recorded
- Crop damage
- None recorded
- Events
- 13
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 national radar mosaic for the moment the first event began.
Event by event
7 hail, 2 tornado, 2 flash flood, 2 thunderstorm wind. Local standard time, as filed.
Tornado, Osage
- When
- May 7, 8:37 PM CST
- Where
- Osage County, 7 mi W of Ralston
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 30 yd
- Coordinates
- 36.700, -96.450
Flash Flood, Osage
- When
- May 7, 9:00 PM CST to 9:30 PM CST
- Where
- Osage County, 15 mi WSW of Burbank
- Coordinates
- 36.629, -96.398 (the zone’s center; the record gives no point)
Hail, Pawnee
- When
- May 7, 9:00 PM CST
- Where
- Pawnee County, Ralston
- Measured
- 1.75 in hail
- Coordinates
- 36.500, -96.720
Tornado, Osage
- When
- May 7, 9:02 PM CST
- Where
- Osage County, 1 mi SW of Fairfax
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 30 yd
- Coordinates
- 36.550, -96.720
Hail, Osage
- When
- May 7, 9:02 PM CST
- Where
- Osage County, Fairfax
- Measured
- 1 in hail
- Coordinates
- 36.570, -96.700
Hail, Pawnee
- When
- May 7, 10:21 PM CST
- Where
- Pawnee County, 1 mi S of Pawnee
- Measured
- 0.75 in hail
- Coordinates
- 36.320, -96.800
Hail, Pawnee
- When
- May 7, 10:26 PM CST
- Where
- Pawnee County, 1 mi S of Pawnee
- Measured
- 0.75 in hail
- Coordinates
- 36.320, -96.800
Hail, Pawnee
- When
- May 7, 10:30 PM CST
- Where
- Pawnee County, Pawnee
- Measured
- 0.75 in hail
- Coordinates
- 36.330, -96.800
Flash Flood, Pawnee
- When
- May 7, 10:30 PM CST to May 8, 12:00 AM CST
- Where
- Pawnee County, Nr Maramec
- Coordinates
- 36.317, -96.699 (the zone’s center; the record gives no point)
Hail, Osage
- When
- May 7, 10:55 PM CST
- Where
- Osage County, Osage
- Measured
- 0.75 in hail
- Coordinates
- 36.300, -96.420
Thunderstorm Wind, Creek
- When
- May 7, 11:40 PM CST
- Where
- Creek County, 3 mi SSW of Glenpool
- Measured
- 52 kt (60 mph)
- Coordinates
- 35.920, -96.330
Thunderstorm Wind, Tulsa
- When
- May 7, 11:40 PM CST
- Where
- Tulsa County, 3 mi SSW of Glenpool
- Measured
- 52 kt (60 mph)
- Coordinates
- 35.920, -96.020
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
- 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.
- 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
- Tornadoes and Flash Flooding in Oklahoma, May 7 to 8, 1997
- Tornado in Nebraska, May 7, 1997
- Hail in Kansas, May 7, 1997
- Lightning Strike in Iowa, May 7, 1997
- Hail in Kansas, May 7 to 26, 1997
- Tornado in Kansas, May 7, 1997
- Flood in Iowa, May 7, 1997
- Lightning Strike in Iowa, May 7, 1997
- Damaging Wind in Kansas, May 7, 1997
- Flood in Iowa, May 7, 1997
- Cold in West Virginia, May 7, 1997
- Hail in Iowa, May 7, 1997
More
Every storm in Oklahoma in 1997Every state in 1997This day in weather historyThe tornado archive for Oklahoma, 1997Warnings in Oklahoma, May 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: 5619711, 5619712, 5619713, 5619714, 5619715, 5619716, 5619717, 5619718, 5619719, 5619720, 5619721, 5619722, 5619723.