Tornadoes · United States · Alabama · 1996
F0 tornado, Clanton, Alabama, November 30, 1996
This F0 tornado ran 3.0 miles across Chilton County on November 30, 1996, touching down at 10:45 PM CST and reaching 50 yards wide. It killed nobody, and did $200,000 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 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
F173 to 112 mph
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
- F0
- Date
- November 30, 1996
- Touchdown
- 10:45 PM CST (04:45 UTC)
- Path length
- 3.0 miles (4.8 km)
- Path width
- 50 yards (46 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $200,000
- County
- Chilton County
- Touchdown point
- 32.800, -86.680
- Lift-off point
- 32.850, -86.650
- Record number
- 929
What the Weather Service recorded
A short track tornado struck central Chilton County in the vicinity of Clanton. The tornado damage path began about 3 miles southwest of Clanton off County Road 18. The tornado moved northeast through western sections of Clanton downing trees and damaging several homes. The tornado damage path ended at US Highway 31 just north of downtown Clanton.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
20 minutes of warning. NWS BMX issued a tornado warning for this county at 04:25 UTC, 20 minutes before the tornado touched down, in force until 05:15 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 04:25 UTC | 05:15 UTC | Tornado Warning | BMX |
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 05:55 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.
Birmingham, AL (KBMX), 00:00Z
4.8 hours before the tornado, 41 km from the path. December 1, 1996.
- Mixed-layer CAPE
- 53 J/kg
- Mixed-layer CIN
- -56 J/kg
- Surface CAPE
- 27 J/kg
- Mixed-layer LCL
- 521 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 288 m²/s²
- 0-3 km storm-relative helicity
- 363 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
- 0-3 km lapse rate
- 4.4 K/km
Birmingham, AL (KBMX), 12:00Z
7.2 hours after it, 41 km from the path. December 1, 1996.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- -70741 J/kg
- Surface CAPE
- 2 J/kg
- Mixed-layer LCL
- 1527 m above ground
- 0-6 km bulk shear
- 80 kt
- 0-1 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -157 m²/s²
- 0-3 km storm-relative helicity
- -71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 3.1 K/km
The radar
The Birmingham radar (KBMX), 40 km away, was scanning. The volume nearest the touchdown began at 04:46 UTC.
Open the radar archive at this moment, over the track
Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.
This ground now
The live radar over the trackEvery 1996 tornado in AlabamaEvery tornado in Alabama since 1950Warnings in force in Alabama nowThe forecast where you are
The other tornadoes of November 30, 1996
5 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| November 30 | 10:27 AM CST | F0 | Trinity, TX | 0.1 | 30 | 2 | $30,000 | |
| November 30 | 12:35 PM CST | F1 | De Soto Parish, LA | 1.9 | 150 | $70,000 | ||
| November 30 | 2:14 PM CST | F2 | Lincoln Parish, LA | 10.0 | 250 | 2 | 9 | $2.0 million |
| November 30 | 4:00 PM CST | F1 | Amite, MS | 5.0 | 30 | |||
| November 30 | 5:45 PM CST | F2 | Santa Rosa, FL | 0.4 | 90 | 7 | $70,000 |
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.