Tornadoes · United States · Oklahoma · 1965

F1 tornado, Osage County, Oklahoma, May 8, 1965

This F1 tornado ran 0.1 miles across Osage County on May 8, 1965, touching down at 5:00 PM GMT-5 and reaching 10 yards wide. It killed nobody, and did $5,000 to $50,000 of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mph

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. F173 to 112 mphthis tornado

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. F2113 to 157 mph

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. F3158 to 206 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. F4207 to 260 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. F5261 to 318 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
F1
Date
May 8, 1965
Touchdown
5:00 PM GMT-5 (22:00 UTC)
Path length
0.1 miles (0.2 km)
Path width
10 yards (9 m)
Deaths
0
Injuries
0
Property damage
$5,000 to $50,000
County
Osage County
Touchdown point
36.500, -96.200
Record number
261

The surface observations

Tulsa International Airport(Aw) (TUL), 44 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
20:00 UTC7767170° 15 kt
21:00 UTC7767170° 15 kt1007.8
22:00 UTC7468170° 16 kt
23:00 UTC7468180° 14 kt

From the Iowa Environmental Mesonet's archive of airport observations.

This ground now

The live radar over the trackEvery 1965 tornado in OklahomaEvery tornado in Oklahoma since 1950Warnings in force in Oklahoma nowThe forecast where you are

The other tornadoes of May 8, 1965

37 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 83:00 AM GMT-6F2Weld, CO1.017$5,000 to $50,000
May 82:15 PM GMT-5F1Waukesha, WI2.010$50,000 to $500,000
May 83:00 PM GMT-5F0Cotton, OK0.110$500 to $5,000
May 84:15 PM GMT-5F1Montgomery, KS1.5300$500 to $5,000
May 85:00 PM GMT-5F0Buffalo, SD0.1102
May 86:00 PM GMT-4F1Williamsburg, SC0.850$5,000 to $50,000
May 85:00 PM GMT-5F3Howard, NE10.210
May 85:25 PM GMT-5F4Howard, NE78.910
May 85:30 PM GMT-5F2Rock, NE44.910
May 85:40 PM GMT-5F3Thayer, NE40.110
May 86:00 PM GMT-5F1Logan, NE89.810
May 86:00 PM GMT-5F1Cass, NE0.110
May 86:00 PM GMT-5F3Holt, NE44.810$5 million to $50 million
May 86:15 PM GMT-5F1Crawford, KS0.110$5,000 to $50,000
May 86:15 PM GMT-5F5Colome tornado, SD30.11,7601$500,000 to $5 million
May 86:23 PM GMT-5F2Tripp, SD0.120
May 86:30 PM GMT-5F2Brown, NE4.110
May 86:30 PM GMT-5F2Brown, NE9.010
May 86:30 PM GMT-5F4Hall, NE125.710453$5 million to $50 million
May 86:30 PM GMT-5F1Hamilton, NE0.110
May 86:35 PM GMT-5F1Hamilton, NE7.210
May 87:00 PM GMT-5F3Gregory, SD1.520$500 to $5,000
May 87:00 PM GMT-5F0Boyd, NE0.110
May 87:00 PM GMT-5F2Platte, NE24.010
May 87:30 PM GMT-5F2Miner, SD3.3243$5,000 to $50,000
May 87:30 PM GMT-5F1Sully, SD0.110
May 87:30 PM GMT-5F1Wayne, NE41.510
May 88:00 PM GMT-5F2Clay, SD4.510$5,000 to $50,000
May 88:00 PM GMT-5F2Brule, SD4.3100$5,000 to $50,000
May 88:00 PM GMT-5F0Potter, SD0.110
May 88:00 PM GMT-6F0Stanley, SD0.110
May 89:30 PM GMT-5F2Sebastian, AR5.11008$50,000 to $500,000
May 810:00 PM GMT-5F1McIntosh, OK0.110$500 to $5,000
May 810:10 PM GMT-5F0Love, OK0.110
May 810:32 PM GMT-5F0Potter, SD0.110
May 810:25 PM GMT-6F0Dewey, SD0.110
May 810:35 PM GMT-6F0Corson, SD0.110

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.