Tornadoes · United States · Louisiana · 1992
F1 tornado, Pointe Coupee Parish, Louisiana, August 26, 1992
This F1 tornado ran 1.0 miles across Pointe Coupee Parish on August 26, 1992, touching down at 10:27 AM CDT and reaching 20 yards wide. It killed nobody, and did $500 to $5,000 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.
F040 to 72 mph
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
F173 to 112 mphthis tornado
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
F4207 to 260 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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
- August 26, 1992
- Touchdown
- 10:27 AM CDT (15:27 UTC)
- Path length
- 1.0 miles (1.6 km)
- Path width
- 20 yards (18 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $500 to $5,000
- County
- Pointe Coupee Parish
- Touchdown point
- 30.680, -91.420
- Record number
- 953
The warnings
No tornado warning for this county appears in the archive as in force at the moment the tornado touched down. One was issued for the county at another hour that day.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 14:14 UTC | 14:45 UTC | Tornado Warning | LIX |
| 15:28 UTC | 16:00 UTC | Tornado Warning | LIX |
Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.
The forecast that day
The Storm Prediction Center had this point in a Slight Risk. The outlook in force was issued at 06:12 UTC.
SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.
The air that afternoon
The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.
Slidell Radar S, LA (KSIL), 12:00Z
3.5 hours before the tornado, 172 km from the path. August 26, 1992.
- Mixed-layer CAPE
- 1929 J/kg
- Mixed-layer CIN
- -4 J/kg
- Surface CAPE
- 932 J/kg
- Mixed-layer LCL
- 550 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 5.7 K/km
Slidell Radar S, LA (KSIL), 00:00Z
8.5 hours after it, 172 km from the path. August 27, 1992.
- Mixed-layer CAPE
- 1005 J/kg
- Mixed-layer CIN
- -2 J/kg
- Surface CAPE
- 1130 J/kg
- Mixed-layer LCL
- 672 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.5
- 0-3 km lapse rate
- 5.8 K/km
The surface observations
Baton Rouge/Ryan (BTR), 31 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 14:00 UTC | 75 | 74 | 120° 35 kt | 51 | 997.3 | +RA |
| 15:00 UTC | 76 | 75 | 140° 40 kt | 55 | 997 | TSRA |
| 16:00 UTC | 75 | 75 | 150° 35 kt | 51 | 997.6 | TSRA |
| 16:02 UTC | 160° 35 kt | 47 | 997.6 | |||
| 17:00 UTC | 75 | 74 | 150° 36 kt | 46 | 999.3 | +RA |
From the Iowa Environmental Mesonet's archive of airport observations.
This ground now
The live radar over the trackEvery 1992 tornado in LouisianaEvery tornado in Louisiana since 1950Warnings in force in Louisiana nowThe forecast where you are
The other tornadoes of August 26, 1992
34 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| August 26 | 2:42 AM CDT | F1 | Iberville Parish, LA | 1.0 | 20 | $5,000 to $50,000 | ||
| August 26 | 8:00 AM CDT | F1 | Lawrence, MS | 2.0 | 100 | 1 | $5,000 to $50,000 | |
| August 26 | 8:05 AM CDT | F0 | Lawrence, MS | 1.5 | 80 | $50 to $500 | ||
| August 26 | 8:20 AM CDT | F1 | Lincoln, MS | 2.0 | 100 | $5,000 to $50,000 | ||
| August 26 | 9:25 AM CDT | F0 | Lawrence, MS | 1.5 | 100 | $500 to $5,000 | ||
| August 26 | 9:25 AM CDT | F1 | Saint Tammany Parish, LA | 14.0 | 20 | $5,000 to $50,000 | ||
| August 26 | 9:26 AM CDT | F0 | Copiah, MS | 2.0 | 150 | $500 to $5,000 | ||
| August 26 | 11:25 AM CDT | F0 | Claiborne, MS | 2.0 | 100 | $50 to $500 | ||
| August 26 | 11:40 AM CDT | F0 | Warren, MS | 1.5 | 80 | $50 to $500 | ||
| August 26 | 3:30 PM CDT | F1 | Saint Tammany Parish, LA | 1.0 | 20 | $500 to $5,000 | ||
| August 26 | 3:30 PM CDT | F1 | Morehouse Parish, LA | 2.0 | 50 | 3 | $50,000 to $500,000 | |
| August 26 | 3:33 PM CDT | F0 | McLean, IL | 0.1 | 10 | |||
| August 26 | 4:00 PM CDT | F0 | Union Parish, LA | 0.5 | 20 | |||
| August 26 | 4:17 PM CDT | F1 | Union Parish, LA | 2.0 | 20 | 4 | $5,000 to $50,000 | |
| August 26 | 5:00 PM CDT | F1 | Leake, MS | 1.5 | 150 | $5,000 to $50,000 | ||
| August 26 | 5:20 PM CDT | F0 | Copiah, MS | 1.0 | 100 | $50 to $500 | ||
| August 26 | 5:25 PM CDT | F1 | Kemper, MS | 1.0 | 100 | $5,000 to $50,000 | ||
| August 26 | 5:27 PM CDT | F0 | Yazoo, MS | 1.0 | 100 | $50 to $500 | ||
| August 26 | 5:40 PM CDT | F0 | Humphreys, MS | 1.0 | 100 | $500 to $5,000 | ||
| August 26 | 6:00 PM CDT | F0 | Attala, MS | 2.0 | 150 | $500 to $5,000 | ||
| August 26 | 6:00 PM CDT | F0 | Holmes, MS | 1.5 | 100 | $5,000 to $50,000 | ||
| August 26 | 6:00 PM CDT | F0 | Clarke, MS | 1.0 | 50 | $50 to $500 | ||
| August 26 | 6:35 PM CDT | F0 | Lauderdale, MS | 2.0 | 150 | 2 | $50,000 to $500,000 | |
| August 26 | 7:10 PM CDT | F0 | Madison Parish, LA | 0.5 | 20 | |||
| August 26 | 7:15 PM CDT | F1 | Tangipahoa Parish, LA | 7.0 | 20 | $50,000 to $500,000 | ||
| August 26 | 7:40 PM CDT | F0 | Smith, MS | 2.0 | 150 | $500 to $5,000 | ||
| August 26 | 8:00 PM CDT | F0 | Madison Parish, LA | 0.5 | 20 | |||
| August 26 | 8:00 PM CDT | F1 | Madison Parish, LA | 1.5 | 40 | $5,000 to $50,000 | ||
| August 26 | 8:04 PM CDT | F1 | Madison Parish, LA | 1.5 | 40 | $5,000 to $50,000 | ||
| August 26 | 8:20 PM CDT | F1 | Franklin Parish, LA | 1.5 | 40 | |||
| August 26 | 9:00 PM CDT | F0 | Yazoo, MS | 1.5 | 100 | $500 to $5,000 | ||
| August 26 | 9:20 PM CDT | F0 | Sharkey, MS | 2.0 | 100 | $500 to $5,000 | ||
| August 26 | 9:30 PM CDT | F0 | Simpson, MS | 2.0 | 150 | $50 to $500 | ||
| August 26 | 10:25 PM CDT | F0 | Yazoo, MS | 1.5 | 100 | $500 to $5,000 |
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.