Oklahoma, 1966

Tornadoes and Hail in Oklahoma, May 11, 1966

May 11, 1966 · 10 events in 7 counties and zones

6 hail, 3 tornado, 1 thunderstorm wind, 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

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The toll

Deaths
0
Injuries
3
Property damage
$278,000
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.

Event by event

6 hail, 3 tornado, 1 thunderstorm wind. Local standard time, as filed.

Hail, Tulsa

When
May 11, 5:10 PM CST
Where
Tulsa County
Measured
0.75 in hail
Coordinates
36.280, -95.900

Tornado, Tulsa

When
May 11, 6:30 PM CST
Where
Tulsa County
Rating
F2
Path length
2 mi
Path width
100 yd
Injuries
1 direct, 0 indirect
Property damage
$25,000
Coordinates
36.170, -95.900

Thunderstorm Wind, Tulsa

When
May 11, 6:30 PM CST
Where
Tulsa County
Coordinates
36.200, -95.900

Hail, Creek

When
May 11, 6:45 PM CST
Where
Creek County
Measured
1.75 in hail
Coordinates
36.080, -96.080

Tornado, Delaware

When
May 11, 7:30 PM CST
Where
Delaware County
Rating
F1
Path length
1 mi
Path width
1,200 yd
Property damage
$3,000
Coordinates
36.600, -94.800

Tornado, Rogers

When
May 11, 7:30 PM CST
Where
Rogers County
Rating
F2
Path length
8.4 mi
Path width
50 yd
Injuries
2 direct, 0 indirect
Property damage
$250,000
Coordinates
36.170, -95.680

Hail, Rogers

When
May 11, 7:33 PM CST
Where
Rogers County
Measured
1 in hail
Coordinates
36.280, -95.580

Hail, Mayes

When
May 11, 8:15 PM CST
Where
Mayes County
Measured
1 in hail
Coordinates
36.200, -95.280

Hail, Oklahoma

When
May 11, 9:40 PM CST
Where
Oklahoma County
Measured
0.75 in hail
Coordinates
35.380, -97.580

Hail, Osage

When
May 11, 10:00 PM CST
Where
Osage County
Measured
0.75 in hail
Coordinates
36.200, -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: 10095471, 10095472, 10095473, 10095474, 10095475, 10095476, 10095477, 10095478, 10095479, 10095480.