Tornadoes · United States · Alabama · 2000

F3 tornado, Gadsden to Centre, Alabama, December 16, 2000

From Gadsden to Centre, this F3 tornado ran 12.8 miles across Etowah and Cherokee counties on December 16, 2000, touching down at 2:46 PM CST and reaching 500 yards wide. It killed nobody and injured 14, and did $10 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 mphthis tornado

    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
F3
Date
December 16, 2000
Touchdown
2:46 PM CST (20:46 UTC)
Path length
12.8 miles (20.6 km)
Path width
500 yards (457 m)
Deaths
0
Injuries
14
Property damage
$10 million
Counties
Etowah and Cherokee counties
Touchdown point
34.050, -85.930
Lift-off point
34.120, -85.730
Record number
581

What the Weather Service recorded

Damage in Etowah and Cherokee counties was the result of an F3 tornado. The tornado track was 12.8 miles long and just over one quarter of a mile or about 500 yards wide at its widest point. The tornado touched down near Tidmore Bend, 5.3 miles east north east of the city of Gadsden, at 246 PM and lifted at 305 PM near Pollard Bend in Cherokee County. The tornado track was 8.1 miles in Etowah County and 4.7 miles in Cherokee County for a total of 12.8 miles.The most significant damage with the tornado was in the Coats Bend Community of Etowah County where 14 injuries occurred and approximately 250 homes were either totally destroyed or had major damage. Damage in Cherokee County was limited to downed trees and damage to a couple of structures. Beginning: 34 02.864/85 55.347 Ending: 34 06.877/85 42.900

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

26 minutes of warning. NWS BMX issued a tornado warning for this county at 20:20 UTC, 26 minutes before the tornado touched down, in force until 21:00 UTC.

Issued (UTC)ExpiredProductOffice
20:20 UTC21:00 UTCTornado WarningBMX

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 Moderate Risk. The outlook in force was issued at 20:14 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), 12:00Z

8.8 hours before the tornado, 134 km from the path. December 16, 2000.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2000-12-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 48 joules per kilogram, CIN -269, lifted condensation level 466 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Birmingham, AL at 12:00Z on 2000-12-16The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 531 square meters per square second, 0 to 6 km bulk shear 68 knots.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
48 J/kg
Mixed-layer CIN
-269 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
466 m above ground
0-6 km bulk shear
68 kt
0-1 km bulk shear
49 kt
0-1 km storm-relative helicity
531 m²/s²
0-3 km storm-relative helicity
563 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.2
0-3 km lapse rate
3.4 K/km

Open this sounding in Storm Lab

Birmingham, AL (KBMX), 00:00Z

3.2 hours after it, 134 km from the path. December 17, 2000.

Skew-T log-pSkew-T log-p diagram, Birmingham, AL at 00:00Z on 2000-12-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 651 joules per kilogram, CIN -23, lifted condensation level 698 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Birmingham, AL at 00:00Z on 2000-12-17The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 303 square meters per square second, 0 to 6 km bulk shear 99 knots.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
651 J/kg
Mixed-layer CIN
-23 J/kg
Surface CAPE
593 J/kg
Mixed-layer LCL
698 m above ground
0-6 km bulk shear
99 kt
0-1 km bulk shear
50 kt
0-1 km storm-relative helicity
303 m²/s²
0-3 km storm-relative helicity
332 m²/s²
Significant tornado parameter
1.3
Supercell composite
4.8
0-3 km lapse rate
5.7 K/km

Open this sounding in Storm Lab

The radar

The Northeast Alabama radar (KHTX), 97 km away, was scanning. The volume nearest the touchdown began at 20:48 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 2000 tornado in AlabamaEvery tornado in Alabama since 1950Warnings in force in Alabama nowThe forecast where you are

The other tornadoes of December 16, 2000

23 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
December 1610:34 AM CSTF2Geneva, AL4.510019$2.5 million
December 1611:00 AM CSTF2Dale, AL29.0170$5.0 million
December 1611:30 AM CSTF2Lauderdale, MS12.044017$2.1 million
December 1612:25 PM CSTF1Lawrence, AL5.130$100,000
December 1612:38 PM CSTF2Limestone, AL4.860$150,000
December 1612:54 PM CSTF4Tuscaloosa tornado, AL18.075011144$13 million
December 1612:55 PM CSTF0Walton, FL0.250$3,000
December 161:08 PM CSTF1Lincoln, TN1.550$50,000
December 161:24 PM CSTF2Holmes, FL3.0100$750,000
December 161:29 PM CSTF0Perry, AL0.730$4,000
December 161:50 PM CSTF1Jackson, FL5.070$300,000
December 162:20 PM CSTF2St. Clair, AL8.52002$170,000
December 163:17 PM CSTF0Calhoun, AL0.320
December 164:50 PM ESTF2Dougherty, GA6.070$750,000
December 164:55 PM CSTF0Autauga, AL0.220
December 165:46 PM CSTF0Macon, AL0.750$10,000
December 166:19 PM CSTF0Randolph, AL1.040$10,000
December 169:30 PM ESTF2Sumter, GA10.0100$310,000
December 1610:10 PM ESTF0Abbeville, SC0.10
December 1612:00 AM ESTF0Cumberland, NC0.120
December 1612:10 AM ESTF0Harnett, NC0.120
December 1612:10 AM ESTF2Richmond, GA2.0608
December 1612:15 AM ESTF0Harnett, NC0.120

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.