Tornadoes · United States · Virginia · 2005

F1 tornado, Varina, Virginia, July 7, 2005

This F1 tornado ran 0.2 miles across Henrico County on July 7, 2005, touching down at 1:15 AM EDT and reaching 75 yards wide. It killed nobody, and did $10,000 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 mph

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

  2. F173 to 112 mphthis tornado

    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
F1
Date
July 7, 2005
Touchdown
1:15 AM EDT (05:15 UTC)
Path length
0.2 miles (0.3 km)
Path width
75 yards (69 m)
Deaths
0
Injuries
0
Property damage
$10,000
County
Henrico County
Touchdown point
37.470, -77.400
Lift-off point
37.470, -77.400
Record number
1080

What the Weather Service recorded

F1 tornado blew off half of an industrial barn roof in Osborne Turnpike Section. Tree damage in spiral pattern.

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

The warnings

16 minutes of warning. NWS AKQ issued a tornado warning for this county at 04:59 UTC, 16 minutes before the tornado touched down, in force until 05:40 UTC.

Issued (UTC)ExpiredProductOffice
03:16 UTC03:45 UTCSevere Thunderstorm WarningAKQ
04:59 UTC05:40 UTCTornado WarningAKQ

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 01:14 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.

Washington/Dulle, VA (KIAD), 00:00Z

5.3 hours before the tornado, 165 km from the path. July 8, 2005.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 00:00Z on 2005-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 581 joules per kilogram, CIN -6, lifted condensation level 733 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, Washington/Dulle, VA at 00:00Z on 2005-07-08The 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 -1 square meters per square second, 0 to 6 km bulk shear 33 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
581 J/kg
Mixed-layer CIN
-6 J/kg
Surface CAPE
874 J/kg
Mixed-layer LCL
733 m above ground
0-6 km bulk shear
33 kt
0-1 km bulk shear
2 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.0
0-3 km lapse rate
6.0 K/km

Open this sounding in Storm Lab

Washington/Dulle, VA (KIAD), 12:00Z

6.7 hours after it, 165 km from the path. July 8, 2005.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2005-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -77473, lifted condensation level 716 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 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, Washington/Dulle, VA at 12:00Z on 2005-07-08The 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 -17 square meters per square second, 0 to 6 km bulk shear 48 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
0 J/kg
Mixed-layer CIN
-77473 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
716 m above ground
0-6 km bulk shear
48 kt
0-1 km bulk shear
18 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
386 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

The radar

The Norfolk radar (KAKQ), 64 km away, was scanning. The volume nearest the touchdown began at 05:16 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
02:30 UTCTORNADOWinterpockChesterfield, VANUMEROUS TREES LEVELLED...TWISTED OFF NEAR BASE. DAMAGE PATH ONE HALF MILE LONG...200 YARDS WIDE.
02:30 UTCTORNADOWinterpockChesterfield, VANUMEROUS TREES LEVELLED...TWISTED OFF NEAR BASE. DAMAGE PATH ONE HALF MILE LONG...200 YARDS WIDE. DAMAGE MAINLY BEHIND RESIDENCE...5000 BLOCK OF WINTERPOCK ROAD. TORNADO RATED HIGH END F1...110 MPH.
03:40 UTCTSTM WND DMGFair OaksHenrico, VATREES AND POWER LINES DOWNED EAST OF DOWNTOWN RICHMOND.
04:15 UTCTORNADO5 S BeachChesterfield, VANUMEROUS TREES DOWN...WITH SOME LARGE TREES UPROOTED. DAMAGE PATH ONE HALF MILE LONG...75 YARDS WIDE. DAMAGE PRIMARILY IN FORESTED AREA BEHIND RESIDENCE...IVEY MILL ROAD. TORNADO RATED F1...100 MPH.
05:15 UTCTORNADOVarinaHenrico, VAPATH LENGTH 0.2 MILES. PATH WIDTH 75 YARDS. ONE HALF ROOF BLOWN OFF INDUSTRIAL BARN. TREE DAMAGE IN SPIRAL PATTERN. OSBORNE TPK SECTION.
05:15 UTCTORNADOVarinaHenrico, VAPATH LENGTH 0.2 MILES. PATH WIDTH 75 YARDS. ONE HALF ROOF BLOWN OFF INDUSTRIAL BARN. TREE DAMAGE IN SPIRAL PATTERN. OSBORNE TPK SECTION. TORNADO RATED F1.

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

This ground now

The live radar over the trackEvery 2005 tornado in VirginiaEvery tornado in Virginia since 1950Warnings in force in Virginia nowThe forecast where you are

The other tornadoes of July 7, 2005

20 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 72:43 AM EDTF1Anderson, SC0.550$150,000
July 710:51 AM EDTF0Spartanburg, SC0.250
July 710:52 AM EDTF1Rutherford, NC0.750$50,000
July 71:10 PM EDTF2Alexander, NC4.0100$150,000
July 71:22 PM EDTF1Patrick, VA0.650
July 72:10 PM EDTF2Iredell, NC3.5200$2.0 million
July 72:15 PM EDTF1Yadkin, NC5.1440
July 72:41 PM EDTF1Yadkin, NC1.4200
July 72:53 PM EDTF1Yadkin, NC1.1200
July 73:30 PM EDTF0Forsyth, NC8.0100
July 73:42 PM EDTF0Person, NC1.025
July 73:10 PM MDTF0Harding, SD19.010
July 75:20 PM EDTF0Guilford, NC5.020
July 74:00 PM MDTF0Harding, SD2.010
July 78:40 PM EDTF0Harnett, NC12.0100
July 78:50 PM EDTF1Brunswick, VA1.2250$10,000
July 78:53 PM EDTF1Nottoway, VA2.5250$10,000
July 710:29 PM EDTF1Chesterfield, VA0.5200$10,000
July 710:55 PM EDTF1Mecklenburg, VA4.5100$10,000
July 712:15 AM EDTF1Chesterfield, VA0.575$3,000

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.