Tornadoes · United States · Louisiana · 1978

F4 tornado, Bossier Parish, Louisiana, December 3, 1978

This F4 tornado ran 6.2 miles across Bossier Parish on December 3, 1978, touching down at 1:50 AM CST and reaching 400 yards wide. It killed 2 people and injured 266, and did $50 million to $500 million 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
December 3, 1978
Touchdown
1:50 AM CST (07:50 UTC)
Path length
6.2 miles (10.0 km)
Path width
400 yards (366 m)
Deaths
2
Injuries
266
Property damage
$50 million to $500 million
County
Bossier Parish
Touchdown point
32.500, -93.750
Lift-off point
32.570, -93.680
Record number
762

This ground now

The live radar over the trackEvery 1978 tornado in LouisianaEvery tornado in Louisiana since 1950Warnings in force in Louisiana nowThe forecast where you are

The other tornadoes of December 3, 1978

12 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
December 32:00 AM CSTF2Ouachita, AR25.2250$50,000 to $500,000
December 32:30 AM CSTF3Bossier Parish, LA61.110
December 33:25 AM CSTF2Union, AR6.45017$50,000 to $500,000
December 33:30 AM CSTF1Jefferson, AR3.877$50,000 to $500,000
December 33:38 AM CSTF3Webster Parish, LA to AR60.030024$50,000 to $500,000
December 34:00 AM CSTF1Calhoun, AR8.4100$50,000 to $500,000
December 34:30 AM CSTF1Arkansas, AR25.3100$5,000 to $50,000
December 34:55 AM CSTF0Monroe, AR0.550$500 to $5,000
December 35:12 AM CSTF2Lee, AR1.0100$500,000 to $5 million
December 35:15 AM CSTF2Lincoln, AR18.6400$50,000 to $500,000
December 36:50 AM CSTF2Phillips, AR0.8100$500,000 to $5 million
December 37:00 AM CSTF1Tunica, MS1.070$50,000 to $500,000

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.