F2 tornado, Childress, Texas, May 9, 2006

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 mphthis tornado

   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.

Rating

F2

Date

May 9, 2006

Touchdown

9:30 PM CDT (02:30 UTC)

Path length

1.5 miles (2.4 km)

Path width

175 yards (160 m)

Deaths

0

Injuries

1

Property damage

$5.7 million

County

Childress County

Touchdown point

34.420, -100.200

Lift-off point

34.420, -100.200

Record number

506

May 9 Severe Thunderstorm and Significant Tornado Event Summary...Two isolated supercell thunderstorms developed east of a dryline that was roughly oriented along the Caprock Escarpment during the late afternoon and early evening hours of the 9th. These storms evolved into splitting supercells, and resulted in large hail up to two inches in diameter in Dickens and Motley Counties. The anticyclonic member from one of the mentioned storms propagated northward over Childress County during the early evening hours. The storm effectively lowered temperature-to-dewpoint depressions and locally backed the near-surface winds. A classic supercell subsequently propagated southeastward out of the Texas Panhandle and over Hall County. This storm interacted with the "outflow boundary" left by the departing anticyclonic storm. The southeastward propagating storm rapidly became tornadic near the northwestern corner of Childress. Large hail, damaging RFD winds, and the significant (F2) tornado resulted in nearly $6 million in damages and injured one. A school net weather instrument located at the heavily damaged Childress High School measured a peak wind gust of 109 MPH as the tornado destroyed the school's gymnasium.A second round of isolated severe storms produced large hail over the extreme southeastern Texas Panhandle as clean-up crews worked in the damaged areas.

A tornado resulted in significant (F2) damage along a one and half mile path through the north side of Childress during the evening hours of the 9th. The tornado developed in a residential are of northwest Childress at 20:30 CST. Damage in the neighborhood was characterized as weak, with numerous downed trees, street signs, and damaged roofs. A resident was injured when a tree fell and struck him, breaking his arm and causing minor lacerations.The tornado then moved east toward the high school. Damage to the high school was extensive. A local television network, KVII-TV in Amarillo, operates an automated weather station on the campus as part of a regional school net. The instrument measured a 109 MPH wind gust as the tornado ripped through the facility at 20:32 CST. Damage at Childress High School was rated F1, with large brick walls blown inn and portions of the building's roof removed. The gymnasium was declared a total loss.The tornado intensified as it continued to move east across Fair Park. A large industrial building used to house city owned emergency vehicles was completely destroyed, with extensive damage to the fleet of vehicles that were parked inside. A tennis court was destroyed by wind-blown debris, and numerous large trees were uprooted. A large stone picnic table was blown northward along the wind fields convergent axis associated with center of the tornado's path. A well-built metal bridge that spanned Park Lake was blown a considerable distance downwind. Damage along the tornado's path through the park justified a significant rating (F2) on the Fujita Tornado Damage Intensity Scale. This given the magnitude of damage observed at the industrial building site, where large steel beams were completely torn from their bolted fixtures.The damage survey indicated that the tornado quickly weakened as it continued to move east of the park, and into more rural areas in the northeastern outskirts of the city.

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

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.

The county was under a severe thunderstorm watch, issued at 23:05 UTC and running to 05:08 UTC.

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 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 01:07 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 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.

The Altus AFB radar (KFDR), 112 km away, was scanning. The volume nearest the touchdown began at 02:30 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.

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

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

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

9 more were confirmed in the United States that day.

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.

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.