Tornadoes · United States · Virginia · 2017

EF0 tornado, Moneta, Virginia, May 5, 2017

This EF0 tornado ran 0.3 miles across Bedford County on May 5, 2017, touching down at 4:04 AM EDT and reaching 100 yards wide. It killed nobody, and did $15,000 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
4:04 AM EDT (08:04 UTC)
Lifted
4:06 AM EDT (08:06 UTC)
On the ground
2 minutes
Path length
0.3 miles (0.5 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
0
Property damage
$15,000
County
Bedford County
Touchdown point
37.112, -79.614
Lift-off point
37.116, -79.613
Record number
1705050204-01

The damage survey

2 damage points were recorded along this path by NWS RNK, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 80 mph.

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

A migrating low pressure center crossed the western portions of the Mid-Atlantic Region allowing early morning thunderstorms to move into portions of Southwest Virginia. Some of these storms became severe, producing wind damage and even a weak tornado near Smith Mountain Lake.

A thunderstorm moved north near Smith Mountain Lake producing a brief EF0 tornado. While it was on the ground for less than two minutes, it was able to uproot and snap multiple large trees and produce damage to the roof and windows of a single dwelling.

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
02:00 UTC13:09 UTCFlood WatchRNK
07:45 UTC08:45 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 General Thunderstorms Risk. 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

8.1 hours before the tornado, 14 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

3.9 hours after it, 14 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

Roanoke Muni (ROA), 39 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
06:05 UTC120° 9 kt1003-RA
06:10 UTC120° 11 kt1003-RA
06:15 UTC110° 12 kt1002.7RA BR
06:20 UTC110° 12 kt1002.7RA BR
06:25 UTC100° 11 kt1002.4RA BR
06:30 UTC100° 12 kt171002RA BR
06:35 UTC100° 13 kt1001.7-RA
06:40 UTC100° 12 kt1001.4-RA
06:45 UTC 1001RA
06:50 UTC100° 15 kt1001RA BR
06:54 UTC6463100° 14 kt211001RA BR
06:55 UTC 1001+RA BR
07:00 UTC110° 13 kt1000.7+RA BR
07:05 UTC110° 14 kt1000.3+RA BR
07:10 UTC110° 14 kt191000+RA BR
07:15 UTC110° 13 kt999.7RA BR
07:20 UTC 999.7+RA BR
07:25 UTC 1000+RA BR
07:28 UTC64.464.4210° 14 kt211000.3+RA BR
07:30 UTC 211000.3+RA BR
07:32 UTC6363260° 15 kt221000.3+RA BR
07:34 UTC6363280° 12 kt221000.3+RA BR
07:35 UTC290° 9 kt1000.3+RA BR
07:40 UTC6161250° 7 kt221000.3+RA BR
07:45 UTC 1000.3+RA BR
07:50 UTC0° 0 kt999.7+RA BR
07:52 UTC60.860.8 3 kt1000+RA BR
07:54 UTC61610° 0 kt1000+RA BR
07:55 UTC0° 0 kt1000+RA BR
08:00 UTC190° 3 kt1000.3RA BR
08:05 UTC0° 0 kt1000.3RA BR
08:10 UTC290° 3 kt1000.3RA BR
08:15 UTC290° 4 kt1000.3RA BR
08:16 UTC60.860.8310° 4 kt1000.3RA BR
08:20 UTC616110° 3 kt1000RA BR
08:25 UTC20° 5 kt999.7RA BR
08:30 UTC360° 4 kt999.7RA BR
08:35 UTC320° 5 kt999.7RA
08:40 UTC0° 0 kt999.7-RA
08:45 UTC0° 0 kt999.7-RA
08:50 UTC80° 4 kt999.3-RA
08:54 UTC626260° 6 kt999-RA
08:55 UTC50° 9 kt998.6-RA
09:00 UTC 997.6RA
09:05 UTC290° 4 kt999-RA
09:10 UTC340° 3 kt998.6-RA
09:15 UTC0° 0 kt998.6
09:20 UTC0° 0 kt998.3
09:25 UTC0° 0 kt998.6
09:30 UTC0° 0 kt999
09:35 UTC250° 8 kt999.3
09:40 UTC240° 7 kt999.3-RA
09:43 UTC6262230° 8 kt999.3-RA
09:45 UTC240° 7 kt999.3-RA
09:50 UTC240° 5 kt999.3RA
09:54 UTC6160260° 6 kt999.3-RA
09:55 UTC260° 6 kt999.3-RA
10:00 UTC260° 11 kt999.3-RA

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

The radar

The Roanoke radar (KFCX), 59 km away, was scanning. The volume nearest the touchdown began at 08:03 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
07:46 UTCTSTM WND DMG4 W SagoFranklin, VAA TREE WAS BLOWN DOWN ALONG SNOW CREEK ROAD NEAR THE INTERSECTION WITH FINNEY ROAD.
07:59 UTCTSTM WND DMG5 N PenhookFranklin, VAA TREE WAS BLOWN DOWN ALONG SCRUGGS ROAD NEAR ASHMEADE ROAD.
08:00 UTCTSTM WND DMG4 Nne MayfieldPittsylvania, VATWO TREES DOWN ON BERRYHILL RD. TIME RADAR ESTIMATED.
08:00 UTCTSTM WND DMG4 W Westover HillsPittsylvania, VAA TREE WAS BLOWN DOWN ON BERRY HILL ROAD.
08:00 UTCTSTM WND DMG6 N MayfieldPittsylvania, VATREE DOWN OVER LOOMFIXER LAKE RD. TIME RADAR ESTIMATED.
08:01 UTCTSTM WND DMG1 Ne CascadePittsylvania, VAMULTIPLE TREES DOWN ALONG CASCADE RD. TIME RADAR ESTIMATED.
08:01 UTCTSTM WND DMG5 Ne CascadePittsylvania, VATREE DOWN OVER WILLOW BRIAR LN. TIME RADAR ESTIMATED.
08:04 UTCTSTM WND DMG5 Nne PenhookFranklin, VASEVERAL TREES DOOWN AND ROOF DAMAGE TO CONDOS AT BERNARDS LANDING FROM PENINSULA PT TO SCRUGGS RD ALONG ASHMEADE RD.
08:04 UTCTORNADO5 Sse MonetaBedford, VADAMAGE SURVEY CONFIRMED THAT AN EF0 TORNADO TOUCHED DOWN AFTER A THUNDERSTORM PROGRESSED ACROSS PORTIONS OF SMITH MOUNTAIN LAKE. THE TORNADO WAS ONLY ON THE GROUND BRIEFLY, BUT WAS ABLE TO UPROOT AND SNAP TREES, WHILE AL
08:06 UTCTSTM WND DMG5 Ne CascadePittsylvania, VATREE DOWN OVER WHISPERING PINES RD. TIME RADAR ESTIMATED.
08:11 UTCTSTM WND DMG5 Sse MonetaBedford, VABROADCAST MEDIA RELAYS REPORT OF MULTIPLE LARGE TREES DOWN, DAMAGE TO THE ROOF OF A SINGLE DWELLING, AND BROKEN WINDOWS IN THE DWELLING DUE TO THUNDERSTORM WINDS.
08:12 UTCTSTM WND DMG2 Ssw HuddlestonBedford, VAA TREE WAS BLOWN DOWN NEAR THE INTERSECTION OF SMITH MOUNTAIN LAKE PARKWAY AND CARTERS MILL ROAD.
08:12 UTCTSTM WND DMG6 Nw BlairsPittsylvania, VATREE DOWN OVER DRYFORK RD. TIME RADAR ESTIMATED.
08:14 UTCTSTM WND DMG4 Nne BlairsPittsylvania, VATREE DOWN OVER SPRING GARDEN RD. TIME RADAR ESTIMATED.
08:42 UTCTSTM WND DMG1 Nnw HurtPittsylvania, VATREE DOWN OVER HURT RD. TIME RADAR ESTIMATED.

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 55:21 AM EDTEF1Granville, NC1.0250$100,000
May 55:40 AM EDTEF1Mecklenburg, VA14.875$200,000
May 56:13 AM EDTEF0Lunenburg, VA1.075$20,000
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.