Tornadoes · United States · Oklahoma · 1957

F4 tornado, Bryan County, Oklahoma, April 2, 1957

This F4 tornado ran 7.9 miles across Bryan County on April 2, 1957, touching down at 5:58 PM GMT-6 and reaching 200 yards wide. It killed 3 people and injured 3, and did $50,000 to $500,000 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 mph

    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 mphthis tornado

    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
F4
Date
April 2, 1957
Touchdown
5:58 PM GMT-6 (23:58 UTC)
Path length
7.9 miles (12.7 km)
Path width
200 yards (183 m)
Deaths
3
Injuries
3
Property damage
$50,000 to $500,000
County
Bryan County
Touchdown point
33.930, -96.430
Lift-off point
34.030, -96.370
Record number
73

This ground now

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The other tornadoes of April 2, 1957

27 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 23:00 AM GMT-6F0Denton, TX0.110
April 23:00 PM GMT-6F2Grayson, TX0.1102$5,000 to $50,000
April 23:25 PM GMT-6F2Montague, TX2.0331$5,000 to $50,000
April 23:30 PM GMT-6F1Jefferson, OK2.010$500 to $5,000
April 23:50 PM GMT-6F0Tarrant, TX0.367$500 to $5,000
April 24:00 PM GMT-6F0Grayson, TX0.110$5,000 to $50,000
April 24:20 PM GMT-6F3Collin, TX10.7334$50,000 to $500,000
April 24:30 PM GMT-6F3Dallas, TX17.210010200$500,000 to $5 million
April 24:50 PM GMT-6F2Murray, OK11.74001$5,000 to $50,000
April 24:55 PM GMT-6F2Murray, OK2.060012$50,000 to $500,000
April 25:29 PM GMT-6F4Marshall, OK5.220026$500,000 to $5 million
April 26:00 PM GMT-6F2Lamar, TX6.510012$5,000 to $50,000
April 26:05 PM GMT-6F2Wheeler, TX0.333$5,000 to $50,000
April 26:15 PM GMT-6F3Wise, TX0.1101$50,000 to $500,000
April 26:30 PM GMT-6F1Denton, TX1.567$5,000 to $50,000
April 26:30 PM GMT-6F2Jackson, OK43.71501$5,000 to $50,000
April 26:30 PM GMT-6F2Lamar, TX0.110$5,000 to $50,000
April 26:40 PM GMT-6F0Pottawatomie, OK0.110under $50
April 27:05 PM GMT-6F0Jackson, OK8.8100$5,000 to $50,000
April 27:15 PM GMT-6F1Choctaw, OK16.810$5,000 to $50,000
April 27:51 PM GMT-6F2Delta, TX0.11012$5,000 to $50,000
April 29:00 PM GMT-6F2Latimer, OK23.38802$5,000 to $50,000
April 29:05 PM GMT-6F2Pittsburg, OK11.7440$5,000 to $50,000
April 29:30 PM GMT-6F1McCurtain, OK11.2880$5,000 to $50,000
April 29:50 PM GMT-6F0LeFlore, OK0.110under $50
April 210:30 PM GMT-6F0Oklahoma, OK0.110under $50
April 211:45 PM GMT-6F1Love, OK0.110

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.