Tornadoes · United States · Virginia · 2017

EF0 tornado, Bagleys Mills, Virginia, May 5, 2017

This EF0 tornado ran 1.0 miles across Lunenburg County on May 5, 2017, touching down at 6:13 AM EDT and reaching 75 yards wide. It killed nobody, and did $20,000 of property damage.

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
May 5, 2017
Touchdown
6:13 AM EDT (10:13 UTC)
Lifted
6:14 AM EDT (10:14 UTC)
On the ground
1 minutes
Path length
1.0 miles (1.6 km)
Path width
75 yards (69 m)
Deaths
0
Injuries
0
Property damage
$20,000
County
Lunenburg County
Touchdown point
36.843, -78.168
Lift-off point
36.856, -78.158
Record number
1705050413-01

The damage survey

10 damage points were recorded along this path by NWS AKQ, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 75 mph.

  • Note that the camper was not moved or damaged.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

What the Weather Service recorded

Scattered severe thunderstorms in advance of low pressure and its associated cold front produced damaging winds and six tornadoes across portions of central and eastern Virginia.

The tornado briefly touched down in an area of trees just to the west of Powers Road. The tornado then lifted before touching down at the intersection of Craig Mill Road and Powers Road, uprooting and breaking numerous trees. No significant structural damage was indicated other than some minor flashing damage to a house, and damage to a kennel from falling trees. The tornado then lifted once again just north of the Craig|Mill Road/Powers Road intersection.

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
09:22 UTC10:00 UTCSevere Thunderstorm WarningAKQ
09:27 UTC10:15 UTCSevere Thunderstorm WarningAKQ
10:15 UTC10:45 UTCSevere Thunderstorm 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 Marginal Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 05:30 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), 00:00Z

10.2 hours before the tornado, 125 km from the path. May 5, 2017.

Skew-T log-pSkew-T log-p diagram, Roanoke, VA at 00:00Z on 2017-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 5 joules per kilogram, CIN -31, lifted condensation level 706 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 2017-05-05The 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 347 square meters per square second, 0 to 6 km bulk shear 56 knots.1939587897Sfc1 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
5 J/kg
Mixed-layer CIN
-31 J/kg
Surface CAPE
48 J/kg
Mixed-layer LCL
706 m above ground
0-6 km bulk shear
56 kt
0-1 km bulk shear
38 kt
0-1 km storm-relative helicity
347 m²/s²
0-3 km storm-relative helicity
487 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.1 K/km

Open this sounding in Storm Lab

Roanoke, VA (KRNK), 12:00Z

1.8 hours after it, 125 km from the path. May 5, 2017.

Skew-T log-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2017-05-05Temperature 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 -81045, lifted condensation level 847 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, Roanoke, VA at 12:00Z on 2017-05-05The 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 28 square meters per square second, 0 to 6 km bulk shear 73 knots.1939587897117Sfc1 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
-81045 J/kg
Surface CAPE
1 J/kg
Mixed-layer LCL
847 m above ground
0-6 km bulk shear
73 kt
0-1 km bulk shear
32 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
3.6 K/km

Open this sounding in Storm Lab

The surface observations

Kenbridge (W31), 12 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
08:15 UTC65.365.3130° 7 kt1002.7
08:35 UTC65.565.5140° 7 kt151001.7
08:55 UTC65.865.8140° 10 kt151001.4
09:15 UTC66.266.2140° 7 kt151000.7
09:35 UTC66.466.4140° 8 kt161000
09:55 UTC66.666.6160° 7 kt141000
10:15 UTC66.666.6300° 5 kt1000.7
10:35 UTC61.261.2230° 7 kt151000.7
10:55 UTC61.261.2170° 4 kt1000.3
11:15 UTC61.261.2160° 4 kt1000.7
11:35 UTC61.761.7170° 4 kt1000.3
11:55 UTC6262160° 5 kt1000.3

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

The radar

The Norfolk radar (KAKQ), 104 km away, was scanning. The volume nearest the touchdown began at 10:13 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
09:05 UTCTSTM WND DMG4 W CloverHalifax, VATREE DOWN ON REVERND COLEMAN RD. TIME RADAR ESTIMATED. 11 TREES DOWN THROUGHOUT THE COUNTY.
09:22 UTCTSTM WND DMG5 Ne PhenixCharlotte, VATHUNDERSTORM WINDS BLEW ONE TREE DOWN ALONG THOMAS JEFFERSON HIGHWAY NEAR CULLEN.
09:28 UTCTSTM WND DMG3 N KeysvilleCharlotte, VATHUNDERSTORM WINDS BLEW ONE TREE DOWN ALONG COUNTRY CLUB ROAD NEAR KEYSVILLE.
09:50 UTCTSTM WND DMGBaskervilleMecklenburg, VAREPORT OF NUMEROUS TREES DOWN AND A TRAMPOLINE WRAPPED AROUND A TREE.
09:54 UTCTSTM WND DMG3 Sw North ViewMecklenburg, VANUMEROUS TREE DAMAGE WHERE TREES ARE TWISTED AND SNAPPED (INCLUDING AN OAK TREE). TRAMPOLINE PICKED UP OVER HOUSE AND IN NEIGHBOR'S YARD. METAL SIGN (4 X 10 FEET) MOVED. NEIGHBOR'S BARN DESTROYED. MORE TREE DAMAGE POSSIB
10:05 UTCTSTM WND DMGCreweNottoway, VANUMEROUS REPORTS OF TREES DOWN.
10:09 UTCTORNADO2 Nnw Church RoadDinwiddie, VAEF1 TORNADO PRODUCED CONSIDERABLE DAMAGE TO TIMBER ALONG A 2.3 MILE PATH NNE FROM THE ORIGIN POINT TO NEAR NAMOZINE RD.
10:13 UTCTSTM WND DMG1 Nnw Church RoadDinwiddie, VAFUNNEL CLOUD SPOTTED WITH TREES DOWN NORTH OF FIVE FORKS ALONG HWY 460.
10:13 UTCTORNADO2 Ese GaryLunenburg, VAAN NWS STORM SURVEY CONFIRMED AN EF0 TORNADO NEAR THE INTERSECTION OF CRAIG MILL ROAD AND POWERS ROAD IN LUNENBURG COUNTY. MAXIMUM WINDS OF 75 MPH. NUMEROUS TREES WERE UPROOTED OR THE TOPS WERE SNAPPED.
10:25 UTCTSTM WND DMGAmelia CourthouseAmelia, VAREPORTS OF TREES DOWN ALONG GENITO ROAD AND ALSO HWY 360.
10:50 UTCTSTM WND DMG3 W MckenneyDinwiddie, VAPOSSIBLE TORNADO NEAR BASKERVILLE MILL ROAD AND HWY 40. REPORTS OF TREES DOWN AND STRUCTURES DAMAGED.
10:50 UTCTSTM WND DMG3 Wnw MckenneyDinwiddie, VAPOSSIBLE TORNADO NEAR BASKERVILLE MILL ROAD AND HWY 40. REPORTS OF TREES DOWN AND STRUCTURES DAMAGED.
10:51 UTCTORNADO3 Wnw MckenneyDinwiddie, VANWS STORM SURVEY TEAM CONFIRMS DAMAGE CONSISTENT WITH AN EF1 TORNADO JUST WEST OF MCKENNEY IN DINWIDDIE COUNTY. STRAIGHTLINE WIND DAMAGE WAS ALSO OBSERVED. THE STORM SURVEY IS ONGOING AND ADDITIONAL INFORMATION WILL BE G
10:51 UTCTORNADO3 Wnw MckenneyDinwiddie, VANWS STORM SURVEY TEAM CONFIRMS DAMAGE CONSISTENT WITH AN EF1 TORNADO JUST WEST OF MCKENNEY IN DINWIDDIE COUNTY. WIND SPEEDS WERE ESTIMATED AT 85 TO 95 MPH. STRAIGHTLINE WIND DAMAGE WAS ALSO OBSERVED.
11:09 UTCTORNADO2 Nnw Church RoadDinwiddie, VAEF1 TORNADO PRODUCED CONSIDERABLE DAMAGE TO TIMBER ALONG A 2.3 MILE PATH NNE FROM THE ORIGIN POINT TO NEAR NAMOZINE RD.
11:13 UTCTSTM WND DMG1 Nnw Church RoadDinwiddie, VAFUNNEL CLOUD SPOTTED WITH TREES DOWN NORTH OF FIVE FORKS ALONG HWY 460.
11:13 UTCTSTM WND DMG1 Nnw Church RoadDinwiddie, VA

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

The other tornadoes of May 5, 2017

12 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 53:12 AM EDTEF0Rockingham, NC3.3375$4.0 million
May 54:04 AM EDTEF0Bedford, VA0.3100$15,000
May 55:21 AM EDTEF1Granville, NC1.0250$100,000
May 55:40 AM EDTEF1Mecklenburg, VA14.875$200,000
May 56:40 AM EDTEF0Powhatan, VA0.475$100,000
May 56:50 AM EDTEF1Dinwiddie, VA2.4300$450,000
May 57:09 AM EDTEF1Dinwiddie, VA2.3150$38,000
May 57:27 AM EDTEF0Chowan, NC11.7100$205,000
May 58:02 AM EDTEF0Camden, NC8.175$20,000
May 58:17 AM EDTEF1Orange, VA0.9100
May 59:19 AM EDTEF1King George, VA1.210
May 57:55 PM EDTEF0Surry, VA4.975$6,000

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.