Tornadoes · United States · Virginia · 2006

F0 tornado, Callands, Virginia, February 4, 2006

This F0 tornado ran 0.1 miles across Pittsylvania County on February 4, 2006, touching down at 3:08 PM EST and reaching 20 yards wide. It killed nobody, and did $2,000 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
February 4, 2006
Touchdown
3:08 PM EST (20:08 UTC)
Path length
0.1 miles (0.2 km)
Path width
20 yards (18 m)
Deaths
0
Injuries
0
Property damage
$2,000
County
Pittsylvania County
Touchdown point
36.850, -79.530
Lift-off point
36.850, -79.530
Record number
54

What the Weather Service recorded

A fast moving thunderstorm spawned two weak tornadoes over western Pittsylvania County during the afternoon of the 4th. A tornado initially touched down 2 miles southeast of Callands and removed a well built wood frame carport from the side of a house and carried this debris 50 feet. This tornado proceeded north-northeast through a wooded area, and then crossed Highway 57, 3 miles east of Callands. Damage here was on the western side of the tornado track, with damage to a church. The damage include vinyl siding being ripped off two sides of the church, shingles torn off, and the brick sign in front of the church toppled over. The east side of the damage path saw several outbuildings and storage sheds demolished, part of a roof of a home torn off, and a small brick chimney knocked over. Besides structural damage, this first tornado snapped or uprooted many trees. The damage here was consistent with an F1 tornado.One person suffered minor injuries while driving in the vicinity of the tornado.A second F0 tornado touched down briefly 3.5 miles northeast of Callands. This tornado blew out underpinnings on 2 mobile homes, and tore off a large piece of aluminum siding from a barn. Within this thunderstorm, straight line wind damage was also observed, with trees downed outside the path of the tornadoes.Other severe thunderstorms downed trees in Halifax and Pittsylvania counties.

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

The warnings

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

Issued (UTC)ExpiredProductOffice
20:05 UTC20:38 UTCSevere Thunderstorm WarningRNK

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 0.02 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.

Roanoke, VA (KRNK), 12:00Z

8.1 hours before the tornado, 39 km from the path. February 4, 2006.

Skew-T log-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2006-02-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 6 joules per kilogram, CIN -100, lifted condensation level 558 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, Roanoke, VA at 12:00Z on 2006-02-04The 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 399 square meters per square second, 0 to 6 km bulk shear 84 knots.1939587897117136156Sfc1 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
6 J/kg
Mixed-layer CIN
-100 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
558 m above ground
0-6 km bulk shear
84 kt
0-1 km bulk shear
31 kt
0-1 km storm-relative helicity
399 m²/s²
0-3 km storm-relative helicity
591 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.3 K/km

Open this sounding in Storm Lab

Roanoke, VA (KRNK), 00:00Z

3.9 hours after it, 39 km from the path. February 5, 2006.

Skew-T log-pSkew-T log-p diagram, Roanoke, VA at 00:00Z on 2006-02-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1 joules per kilogram, CIN -3, lifted condensation level 965 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, Roanoke, VA at 00:00Z on 2006-02-05The 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 -220 square meters per square second, 0 to 6 km bulk shear 123 knots.1939587897117136156Sfc1 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
1 J/kg
Mixed-layer CIN
-3 J/kg
Surface CAPE
8 J/kg
Mixed-layer LCL
965 m above ground
0-6 km bulk shear
123 kt
0-1 km bulk shear
17 kt
0-1 km storm-relative helicity
-220 m²/s²
0-3 km storm-relative helicity
7 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.4 K/km

Open this sounding in Storm Lab

The radar

The Roanoke radar (KFCX), 69 km away, was scanning. The volume nearest the touchdown began at 20:06 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
20:08 UTCTSTM WND GST 0CallandsPittsylvania, VAWIND BLOWS ROOF OFF STRUCTURE
20:15 UTCTORNADO10 W ChathamPittsylvania, VANUMEROUS TREES DOWN. PAGES FROM BIBLE AND HYMNALS ON PROPERTY FROM DAMAGED CHURCH UP THE ROAD.
20:15 UTCTORNADOCallandsPittsylvania, VATWO HOUSES DAMAGED. CHURCH DAMAGED. LARGE TREES AND POWER LINES BLOWN DOWN.
20:20 UTCTORNADO3 W ClimaxPittsylvania, VAA COUPLE LARGE TREES UPROOTED. TIN ROOF BLOWN OFF BARN. TIN DEBRIS WRAPPED AROUND TREES.
20:55 UTCTSTM WND DMG5 Se KeelingPittsylvania, VAONE TREE BLOWN ACROSS REEVES MILL ROAD ONE MILE NORTH OF LAUREL GROVE.
21:13 UTCTSTM WND DMG6 Ne RidgewayHalifax, VATREES DOWN ON BEULAH ROAD
21:20 UTCTSTM WND DMGNathalieHalifax, VATREES DOWNED ALONG ACORN ROAD IN NATHALIE

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 VirginiaEvery tornado in Virginia since 1950Warnings in force in Virginia nowThe forecast where you are

The other tornadoes of February 4, 2006

2 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
February 411:43 AM ESTF0Fairfield, SC5.060
February 43:05 PM ESTF1Pittsylvania, VA2.02001$90,000

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.