Tornadoes · United States · North Carolina · 2007

EF0 tornado, Thomasville, North Carolina, September 14, 2007

This EF0 tornado ran 0.1 miles across Davidson County on September 14, 2007, touching down at 4:23 PM EDT and reaching 25 yards wide. It killed nobody.

The rating scale

Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. EF065 to 85 mphthis tornado

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. EF186 to 110 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. EF2111 to 135 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. EF3136 to 165 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. EF4166 to 200 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. EF5over 200 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
EF0
Date
September 14, 2007
Touchdown
4:23 PM EDT (20:23 UTC)
Lifted
4:27 PM EDT (20:27 UTC)
On the ground
4 minutes
Path length
0.1 miles (0.2 km)
Path width
25 yards (23 m)
Deaths
0
Injuries
0
County
Davidson County
Touchdown point
35.937, -80.109
Lift-off point
35.939, -80.110
Record number
0709141423-01

What the Weather Service recorded

On the afternoon and evening of September 14th, tropical moisture streamed north ahead of the remnants of Humberto. The environment over Central North Carolina became supportive for tornado development as a surface boundary stalled across the area.

Law enforcement reported a tornado touchdown on HWY 52 northwest of Thomasville.

Law enforcement reported a tornado touchdown on HWY 52 northwest of Thomasville.

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

The warnings

5 minutes of warning. NWS RAH issued a tornado warning for this county at 20:18 UTC, 5 minutes before the tornado touched down, in force until 20:49 UTC.

Issued (UTC)ExpiredProductOffice
20:18 UTC20:49 UTCTornado WarningRAH

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 General Thunderstorms Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 19:59 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.

Greensboro/Hi Pt, NC (KGSO), 12:00Z

8.4 hours before the tornado, 25 km from the path. September 14, 2007.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2007-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 384 joules per kilogram, CIN -30, lifted condensation level 591 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, Greensboro/Hi Pt, NC at 12:00Z on 2007-09-14The 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 49 square meters per square second, 0 to 6 km bulk shear 25 knots.193958Sfc1 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
384 J/kg
Mixed-layer CIN
-30 J/kg
Surface CAPE
43 J/kg
Mixed-layer LCL
591 m above ground
0-6 km bulk shear
25 kt
0-1 km bulk shear
9 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3
0-3 km lapse rate
5.5 K/km

Open this sounding in Storm Lab

Greensboro/Hi Pt, NC (KGSO), 00:00Z

3.6 hours after it, 25 km from the path. September 15, 2007.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2007-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1012 joules per kilogram, CIN 0, lifted condensation level 466 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 2007-09-15The 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 69 square meters per square second, 0 to 6 km bulk shear 38 knots.193958Sfc1 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
1012 J/kg
Mixed-layer CIN
0 J/kg
Surface CAPE
660 J/kg
Mixed-layer LCL
466 m above ground
0-6 km bulk shear
38 kt
0-1 km bulk shear
26 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.5
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

The surface observations

Greensboro/Piedmont_(Asos) (GSO), 23 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
18:54 UTC7769130° 7 kt1014.9-RA
18:55 UTC
19:21 UTC75.268150° 19 kt261014.2+RA
19:22 UTC
19:30 UTC73.469.8170° 13 kt241014.2+RA BR
19:31 UTC
19:35 UTC73.469.8180° 9 kt1014.2-RA BR
19:37 UTC
19:40 UTC73.469.8200° 9 kt1014.2-RA BR
19:42 UTC
19:54 UTC7470200° 7 kt1014.2-RA BR
19:55 UTC
20:42 UTC73.469.8250° 4 kt1014.2+TSRA BR
20:43 UTC
20:54 UTC7370170° 7 kt1014.2+TSRA FG
20:55 UTC
21:02 UTC73.469.8190° 6 kt1014.2+TSRA BR
21:03 UTC
21:36 UTC73.469.8260° 4 kt1014.2RA BR
21:37 UTC
21:48 UTC71.669.8330° 4 kt1014.2-RA BR
21:50 UTC
21:54 UTC72690° 0 kt1014.2
21:55 UTC
22:17 UTC73.469.8310° 4 kt1014.2
22:18 UTC

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

The radar

The Roanoke radar (KFCX), 122 km away, was scanning. The volume nearest the touchdown began at 20:23 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
18:36 UTCTORNADOClemmonsForsyth, NCA WEAK BRIEF TORNADO TOUCHED DOWN IN THE CLEMMONS AREA DAMAGING SEVERAL HOMES ALONG PEACE HAVEN STREET. THE TORNADO RIPPED THE SIDING OFF SEVERAL HOMES AND ALSO KNOCKED DOWN SEVERAL TREES.
19:30 UTCFUNNEL CLOUD3 Wsw SummerfieldGuilford, NCREPORTED BY PUBLIC AT HIGHWAY 150 AND UNION GROVE ROAD NEAR OAK RIDGE.
20:23 UTCTORNADO4 Nnw ThomasvilleDavidson, NCLAW ENFORCEMENT REPORTED A TORNADO TOUCHDOWN ON HWY 52 NORTHWEST OF THOMASVILLE.

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

This ground now

The live radar over the trackEvery 2007 tornado in North CarolinaEvery tornado in North Carolina since 1950Warnings in force in North Carolina nowThe forecast where you are

The other tornadoes of September 14, 2007

9 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
September 142:36 PM EDTEF0Forsyth, NC0.350
September 144:23 PM EDTEF0Davidson, NC0.125
September 146:10 PM EDTEF0Harnett, NC1.450
September 146:15 PM EDTEF0Johnston, NC0.725
September 146:44 PM EDTEF0Johnston, NC0.425
September 146:50 PM EDTEF0Johnston, NC0.325
September 147:25 PM EDTEF0Wake, NC0.125
September 147:44 PM EDTEF1Laurens, SC0.125$10,000
September 1412:10 AM EDTEF0Northampton, VA6.550$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.