Tornadoes · United States · Virginia · 1996
F2 tornado, Centreville to Annandale, Virginia, June 24, 1996
From Centreville to Annandale, this F2 tornado ran 20.0 miles across Fairfax and Loudoun counties on June 24, 1996, touching down at 4:40 PM EDT and reaching 200 yards wide. It killed nobody and injured 1, and did $4.0 million 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.
F040 to 72 mph
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
F173 to 112 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
F4207 to 260 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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
- F2
- Date
- June 24, 1996
- Touchdown
- 4:40 PM EDT (20:40 UTC)
- Path length
- 20.0 miles (32.2 km)
- Path width
- 200 yards (183 m)
- Deaths
- 0
- Injuries
- 1
- Property damage
- $4.0 million
- Counties
- Fairfax and Loudoun counties
- Touchdown point
- 38.850, -77.530
- Lift-off point
- 38.830, -77.220
- Record number
- 1148
What the Weather Service recorded
A tornado, associated with the mesocyclone of a heavy-precipitation supercell, touched down in extreme southeastern Loudoun Co near the Bull Run, then proceeded east-southeast for 20 miles, knocking down over 1000 trees and causing substantial property damage, especially in western Fairfax County, before lifting along the Capital Beltway at the Braddock Road interchange less than 2 miles west of Annandale.While moving over rural terrain in extreme southeastern Loudoun and extreme western Fairfax Cos, the tornado uprooted or snapped tens of trees. The storm rapidly intensified over western Fairfax Co, where it produced F2 damage. The storm uprooted or snapped hundreds of trees along Pleasant Valley Road (local route 621) before moving into the Sully Station area of Centreville, where it produced estimated winds of over 130 mph. The most impressive damage occurred along Tree Line Drive, where 11 of 17 homes incurred moderate to major damage. Eight homes were condemned due to major damage or total destruction, including one which lost it's entire roof and back wall. Dozens more homes sustained moderate damage, including shingle, siding, chimney, roof, and window damage.After passing through Sully Station, the twister weakened somewhat, producing F1-rated damage until just south of Fairfax City (near Burke), then weakened to F0 intensity before it was overwhelmed by straight-line winds near the Capital Beltway.The storm accelerated on an east-southeast track roughly paralleling Braddock Road. Additional damage was incurred to residences and trees from subdivisions west of Fairfax City to just north of Burke (south of Fairfax City), continuing to the Annandale area. The combined efforts of several agencies produced property damage estimates along the track (not including flora) to be $2.99 million. Included in that total are 323 homes which sustained minor damage. An estimated 80 thousand homes lost power along the track of the tornado in Fairfax Co, with some homes not receiving juice until several days after the event.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
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), 12:00Z
8.7 hours before the tornado, 12 km from the path. June 24, 1996.
- Mixed-layer CAPE
- 1 J/kg
- Mixed-layer CIN
- -567 J/kg
- Surface CAPE
- 1 J/kg
- Mixed-layer LCL
- 1076 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 3.0 K/km
The surface observations
Washington/Dulles (IAD), 12 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 00:00 UTC |
From the Iowa Environmental Mesonet's archive of airport observations.
The radar
The Sterling radar (KLWX), 18 km away, was scanning. The volume nearest the touchdown began at 20:41 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.
This ground now
The live radar over the trackEvery 1996 tornado in VirginiaEvery tornado in Virginia since 1950Warnings in force in Virginia nowThe forecast where you are
The other tornadoes of June 24, 1996
8 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| June 24 | 4:10 PM EDT | F0 | Loudoun, VA | 1.0 | 100 | $10,000 | ||
| June 24 | 5:23 PM EDT | F0 | Prince George's, MD | 1.0 | 50 | $200,000 | ||
| June 24 | 5:34 PM EDT | F1 | Prince George's, MD | 5.0 | 200 | $600,000 | ||
| June 24 | 5:45 PM EDT | F1 | Adams, PA | 5.0 | 50 | |||
| June 24 | 6:25 PM EDT | F0 | Westmoreland, VA | 1.0 | 70 | $170,000 | ||
| June 24 | 7:03 PM EDT | F1 | Rockingham, VA | 0.5 | 100 | $40,000 | ||
| June 24 | 6:25 PM MDT | F0 | Cheyenne, CO | 1.0 | 30 | |||
| June 24 | 8:50 PM MDT | F0 | Rosebud, MT | 0.1 | 10 |
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.