Tornadoes · United States · West Virginia · 2017
EF0 tornado, Charles Town, West Virginia, July 5, 2017
This EF0 tornado ran 0.3 miles across Jefferson County on July 5, 2017, touching down at 10:14 PM EDT and reaching 30 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.
EF065 to 85 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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
- July 5, 2017
- Touchdown
- 10:14 PM EDT (02:14 UTC)
- Lifted
- 10:15 PM EDT (02:15 UTC)
- On the ground
- 1 minutes
- Path length
- 0.3 miles (0.4 km)
- Path width
- 30 yards (27 m)
- Deaths
- 0
- Injuries
- 0
- County
- Jefferson County
- Touchdown point
- 39.297, -77.844
- Lift-off point
- 39.300, -77.847
- Record number
- 1707052014-01
What the Weather Service recorded
A boundary passed through the area during the evening hours. Winds aloft changed direction with height and also increased near the boundary. A storm developed along the boundary and the rotation from the changing winds aloft caused an isolated tornado to develop.
The National Weather Service in Baltimore MD/Washington DC has|confirmed a weak tornado near Charles Town in Jefferson County WV on|July 05 2017.||A small tornado touched down at the entrance to the Jefferson|Crossing Shopping Center on Flowing Springs Road just north of |U.S. 340. The tornado damaged the sign at the entrance.||The tornado crossed Flowing Springs Road and damaged the roofing |of three barns and the door to a fourth barn located at Hollywood|Casino at Charles Town Races. One barn lost a section of roof|completely, leaving seven stalls exposed. Debris from the roof of|one barn was thrown into power lines, snapping a telephone pole.|Fencing was also damaged by debris from the roof. Projectile |impacts were also noted in nearby barn roofs from two- by-four |pieces of wood that were lofted by the tornado.||The tornado lifted as it crossed East Fifth Avenue near the|vehicle entrance to the barn area.||The tornado was captured on security camera footage at the|Hollywood Casino at Charles Town Races. The footage showed|sections of barn roof being lifted and spun into the air.||Velocity data from the FAA Terminal Doppler Radar located near|Leesburg, VA that serves Washington Dulles International Airport |corroborated these impacts with a brief, weak shear signature |from 2014 to 2015 UTC.
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) | Expired | Product | Office |
|---|---|---|---|
| 17:18 UTC | 05:57 UTC | Flash Flood Watch | LWX |
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. The outlook in force was issued at 00:57 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
2.2 hours before the tornado, 55 km from the path. July 6, 2017.
- Mixed-layer CAPE
- 16 J/kg
- Mixed-layer CIN
- -70 J/kg
- Surface CAPE
- 1 J/kg
- Mixed-layer LCL
- 664 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -55 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 4.6 K/km
Washington/Dulle, VA (KIAD), 12:00Z
9.8 hours after it, 55 km from the path. July 6, 2017.
- Mixed-layer CAPE
- 227 J/kg
- Mixed-layer CIN
- -1 J/kg
- Surface CAPE
- 262 J/kg
- Mixed-layer LCL
- 468 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
- 0-3 km lapse rate
- 4.9 K/km
The radar
The Sterling radar (KLWX), 47 km away, was scanning. The volume nearest the touchdown began at 02:15 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) | Report | Where | County | Remark |
|---|---|---|---|---|
| 00:15 UTC | TORNADO | 1 Ene Ranson | Jefferson, WV | BRIEF EF-0 TORNADO. SIGN DAMAGED AT JEFFERSON CROSSING SHOPPING CENTER. BARNS DAMAGED AT HOLLYWOOD CASINO AT CHARLES TOWN RACES. |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2017 tornado in West VirginiaEvery tornado in West Virginia since 1950Warnings in force in West Virginia nowThe forecast where you are
The other tornadoes of July 5, 2017
2 more were confirmed in the United States that day.
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.