Tornadoes · United States · Texas · 2006

F0 tornado, Jacksonville, Texas, December 29, 2006

This F0 tornado ran 0.1 miles across Cherokee County on December 29, 2006, touching down at 3:30 PM CST and reaching 50 yards wide. It killed nobody, and did $50,000 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 mphthis tornado

    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 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
F0
Date
December 29, 2006
Touchdown
3:30 PM CST (21:30 UTC)
Path length
0.1 miles (0.2 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
Property damage
$50,000
County
Cherokee County
Touchdown point
32.080, -95.110
Lift-off point
32.080, -95.110
Record number
1089

What the Weather Service recorded

A supercell thunderstorm moved northward into Northwest Cherokee County, Texas and produced a brief tornado.

The National Weather Service conducted a storm survey in Northwest Cherokee County, Texas. It was concluded that a supercell thunderstorm produced a Tornado approximately 13 miles northwest of the town of Jacksonville, Texas. Several trees were uprooted and snapped off a mid trunk along FM 346. One large tree fell on top of a mobile home in the Shady Brook Mobile Home Community.

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

The warnings

15 minutes of warning. NWS SHV issued a tornado warning for this county at 21:15 UTC, 15 minutes before the tornado touched down, in force until 22:00 UTC.

Issued (UTC)ExpiredProductOffice
21:15 UTC22:00 UTCTornado WarningSHV
23:41 UTC08:00 UTCTornado WatchSHV
00:00 UTC11:08 UTCFlash Flood WatchSHV

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, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 20:00 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.

Shreveport, LA (KSHV), 12:00Z

9.5 hours before the tornado, 135 km from the path. December 29, 2006.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 12:00Z on 2006-12-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 5 joules per kilogram, CIN -29, lifted condensation level 471 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, Shreveport, LA at 12:00Z on 2006-12-29The 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 299 square meters per square second, 0 to 6 km bulk shear 31 knots.19395878Sfc1 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
5 J/kg
Mixed-layer CIN
-29 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
471 m above ground
0-6 km bulk shear
31 kt
0-1 km bulk shear
31 kt
0-1 km storm-relative helicity
299 m²/s²
0-3 km storm-relative helicity
367 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
3.9 K/km

Open this sounding in Storm Lab

Shreveport, LA (KSHV), 00:00Z

2.5 hours after it, 135 km from the path. December 30, 2006.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2006-12-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 378 joules per kilogram, CIN -89, lifted condensation level 673 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, Shreveport, LA at 00:00Z on 2006-12-30The 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 363 square meters per square second, 0 to 6 km bulk shear 41 knots.19395878Sfc1 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
378 J/kg
Mixed-layer CIN
-89 J/kg
Surface CAPE
186 J/kg
Mixed-layer LCL
673 m above ground
0-6 km bulk shear
41 kt
0-1 km bulk shear
36 kt
0-1 km storm-relative helicity
363 m²/s²
0-3 km storm-relative helicity
372 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.3
0-3 km lapse rate
5.3 K/km

Open this sounding in Storm Lab

The surface observations

Jacksonville (JSO), 26 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
19:45 UTC62.660.8110° 9 kt201014.6TSRA
20:05 UTC62.660.8100° 8 kt171014.9TS BR
20:25 UTC62.660.8110° 10 kt191014.2-TSRA
20:45 UTC62.662.690° 13 kt221013.5-TSRA
21:05 UTC62.662.680° 12 kt171012.9-TSRA
21:46 UTC64.462.6130° 11 kt261013.2TSRA
22:05 UTC64.462.6130° 10 kt201013.5VCTS BR
22:06 UTC66.262.6130° 12 kt201013.5BR
22:25 UTC64.462.6140° 8 kt181013.9
22:45 UTC64.462.6100° 11 kt161012.9
23:25 UTC64.462.6110° 11 kt171012.9

From the Iowa Environmental Mesonet's archive of airport observations.

The radar

The Shreveport radar (KSHV), 126 km away, was scanning. The volume nearest the touchdown began at 21:32 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.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
21:30 UTCTORNADO13 Nw JacksonvilleCherokee, TXNWS STORM SURVEY CONCLUDED THAT A F0 TORNADO TOUCHED DOWN BRIEFLY IN THE SHADY BROOK MOBILE HOME COMMUNITY OFF OF STATE HIGHWAY 346. SEVERAL TREES WERE SNAPPED AND ONE LARGE TREE FELL THROUGH A MOBILE HOME.
21:40 UTCTSTM WND DMG5 W JacksonvilleCherokee, TXMULTIPLE REPORTS OF TREES AND POWERLINES DOWN FROM HWY 747 WEST OF JACKSONVILLE NORTHWARD IN CHEROKEE COUNTY.
21:45 UTCTORNADO10 Sw TylerSmith, TXNWS SURVEY CONCLUDED THAT AN F1 TORNADO TOUCHED DOWN IN THE TOWN OF FLINT. DAMAGE PATH WAS ABOUT 1 1/2 MILES LONG WITH A MAXIMUM WIDTH OF 100 YARDS. DAMAGE CONSISTED OF A FEW SMALL METAL BUILDINGS DESTROYED AND SEVERAL T
00:39 UTCTORNADOPoynorHenderson, TXMOBILE HOME DAMAGED AND BLOWN OFF FOUNDATION.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2006 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

The other tornadoes of December 29, 2006

26 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
December 291:01 PM CSTF1Coryell, TX4.5100$200,000
December 291:20 PM CSTF1Erath, TX8.075$25,000
December 291:35 PM CSTF0Erath, TX4.050$15,000
December 291:41 PM CSTF0Bosque, TX1.075$2,000
December 291:42 PM CSTF2Limestone, TX20.4400120$1.0 million
December 291:45 PM CSTF0Erath, TX1.440
December 291:48 PM CSTF0Bosque, TX1.575$10,000
December 292:12 PM CSTF0Limestone, TX3.635$10,000
December 292:53 PM CSTF2Bosque, TX7.1300$400,000
December 293:07 PM CSTF0Bosque, TX0.750$2,000
December 293:13 PM CSTF0Palo Pinto, TX2.050$7,000
December 293:15 PM CSTF1Madison, TX15.91,3203$750,000
December 293:23 PM CSTF1Brazos, TX4.52003$2.8 million
December 293:25 PM CSTF2Hill, TX8.0587$500,000
December 293:33 PM CSTF0Leon, TX5.750$5,000
December 293:40 PM CSTF0Jack, TX1.030
December 293:45 PM CSTF2Johnson, TX14.758712$2.0 million
December 293:45 PM CSTF1Smith, TX1.5100$100,000
December 293:45 PM CSTF0Leon, TX2.050$35,000
December 294:07 PM CSTF0Johnson, TX1.370$40,000
December 294:12 PM CSTF0Leon, TX3.850$5,000
December 294:55 PM CSTF0Anderson, TX6.750$10,000
December 295:50 PM CSTF1Anderson, TX4.050$200,000
December 295:54 PM CSTF0Robertson, TX3.050
December 296:34 PM CSTF1Henderson, TX3.0100$2.0 million
December 297:30 PM CSTF1Anderson, TX11.3100$30,000

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.