Hail, Kay
- When
- May 15, 6:40 PM CST
- Where
- Kay County
- Measured
- 1.75 in hail
- Coordinates
- 36.780, -97.400
Tornadoes and Hail in Oklahoma, May 15, 1966
5 hail, 3 thunderstorm wind, 2 tornado, 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
- None recorded
- 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.
Event by event
5 hail, 3 thunderstorm wind, 2 tornado. Local standard time, as filed.
Hail, Payne
- When
- May 15, 8:15 PM CST
- Where
- Payne County
- Measured
- 0.75 in hail
- Coordinates
- 36.080, -96.680
Hail, Osage
- When
- May 15, 8:15 PM CST
- Where
- Osage County
- Measured
- 1.75 in hail
- Coordinates
- 36.700, -96.280
Hail, Osage
- When
- May 15, 8:40 PM CST
- Where
- Osage County
- Measured
- 1.5 in hail
- Coordinates
- 36.380, -96.400
Tornado, Creek
- When
- May 15, 8:50 PM CST
- Where
- Creek County
- Rating
- F1
- Path width
- 33 yd
- Coordinates
- 36.070, -96.600
Thunderstorm Wind, Payne
- When
- May 15, 8:50 PM CST
- Where
- Payne County
- Coordinates
- 36.080, -97.000
Thunderstorm Wind, Creek
- When
- May 15, 8:50 PM CST
- Where
- Creek County
- Coordinates
- 35.880, -96.280
Tornado, Lincoln
- When
- May 15, 9:55 PM CST
- Where
- Lincoln County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 35.700, -96.620
Hail, Okmulgee
- When
- May 15, 11:30 PM CST
- Where
- Okmulgee County
- Measured
- 1.5 in hail
- Coordinates
- 35.500, -95.900
Thunderstorm Wind, Okmulgee
- When
- May 15, 11:30 PM CST
- Where
- Okmulgee County
- Coordinates
- 35.580, -96.000
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.
- 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
More
Every storm in Oklahoma in 1966Every state in 1966This day in weather historyThe tornado archive for Oklahoma, 1966
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: 10095482, 10095483, 10095484, 10095485, 10095486, 10095487, 10095488, 10095489, 10095490, 10095491.