Tornadoes · United States · Texas · 2017

EF2 tornado, New Salem to Glenfawn, Texas, December 19, 2017

From New Salem to Glenfawn, this EF2 tornado ran 6.4 miles across Rusk County on December 19, 2017, touching down at 7:31 PM CST and reaching 1,300 yards wide. It killed nobody, and did $125,000 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 mph

    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 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.

  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
EF2
Date
December 19, 2017
Touchdown
7:31 PM CST (01:31 UTC)
Lifted
7:37 PM CST (01:37 UTC)
On the ground
6 minutes
Path length
6.4 miles (10.3 km)
Path width
1,300 yards (1189 m)
Deaths
0
Injuries
0
Property damage
$125,000
County
Rusk County
Touchdown point
31.893, -94.944
Lift-off point
31.924, -94.841
Record number
1712191931-01

The damage survey

4 damage points were recorded along this path by NWS SHV, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF2. The highest wind the damage implies is 115 mph.

  • 5 concrete poll down 2 cracked
  • Several trees uprooted and all laying to the northeast. Utility barn to the south sustained severe damage.

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 warm front lifted north across East Texas and North Louisiana to along the Arkansas/Louisiana border during the afternoon hours of December 19th, focusing showers a large area of rain north of this boundary over portions of extreme Northeast Texas, Southeast Oklahoma, and Southwest Arkansas. Meanwhile, much warmer and humid air was found south of the front across Lower East Texas and Northcentral Louisiana, resulting in moderate surface instability. Meanwhile, a surface low developed during the afternoon over North Texas along a weak cold front, associated with a strong upper level trough of low pressure that progressed east across Westcentral and North Texas during the afternoon and evening. Steep lapse rates aloft enhanced instability across the warm sector south of the warm front, with adequate shear present and strong upper level forcing ahead of the trough leading to the development of stronger, more surface based showers and thunderstorms. These storms became severe as they moved into Southern Cherokee County Texas, with an isolated tornado touching down just south of Rusk. Other reports of wind damage were received with these storms as they slowly marched east northeast across East Texas south of Interstate 20. Locally heavy rainfall also accompanied these showers and thunderstorms, which trained for a few hours over the same areas resulting in flash flooding across portions of Southern Cherokee, Gregg, and Southwest Panola Counties. These storms gradually weakened as they approached the Lower Toledo Bend Country during the late evening hours.

An EF-2 tornado was maximum estimated winds near 115 mph touched down across a heavily wooded areas just south of FM 4251 northeast of Reklaw, where it snapped and uprooted numerous trees. This tornado destroyed a nearby cabin adjacent to a pond where it was lifted off its pier and beam foundation and moved it about 15 yards into a heavily wooded area. A fiberglass fishing boat was lofted and unable to be found. The tornado continued east across a heavily wooded area before crossing County Road 4234 where numerous trees were snapped and uprooted. This tornado lifted after crossing County Road 4232 southwest of the Laneville community.

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

The warnings

26 minutes of warning. NWS SHV issued a tornado warning for this county at 01:05 UTC, 26 minutes before the tornado touched down, in force until 01:45 UTC.

Issued (UTC)ExpiredProductOffice
09:28 UTC15:00 UTCDense Fog AdvisorySHV
00:57 UTC02:00 UTCSevere Thunderstorm WarningSHV
01:05 UTC01:45 UTCTornado WarningSHV
01:35 UTC02:15 UTCTornado WarningSHV
01:46 UTC04:45 UTCFlash Flood WarningSHV
01:50 UTC02:30 UTCTornado WarningSHV
01:56 UTC03:00 UTCSevere Thunderstorm WarningSHV

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 00:35 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.

Shreveport, LA (KBAD), 00:00Z

1.5 hours before the tornado, 125 km from the path. December 20, 2017.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2017-12-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 513 joules per kilogram, CIN -10, lifted condensation level 542 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, Shreveport, LA at 00:00Z on 2017-12-20The 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 393 square meters per square second, 0 to 6 km bulk shear 72 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
513 J/kg
Mixed-layer CIN
-10 J/kg
Surface CAPE
219 J/kg
Mixed-layer LCL
542 m above ground
0-6 km bulk shear
72 kt
0-1 km bulk shear
37 kt
0-1 km storm-relative helicity
393 m²/s²
0-3 km storm-relative helicity
450 m²/s²
Significant tornado parameter
1.5
Supercell composite
5.9
0-3 km lapse rate
4.9 K/km

Open this sounding in Storm Lab

Shreveport, LA (KBAD), 12:00Z

10.5 hours after it, 125 km from the path. December 20, 2017.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 12:00Z on 2017-12-20Temperature 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 -91835, lifted condensation level 626 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, Shreveport, LA at 12:00Z on 2017-12-20The 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 -52 square meters per square second, 0 to 6 km bulk shear 61 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
-91835 J/kg
Surface CAPE
4 J/kg
Mixed-layer LCL
626 m above ground
0-6 km bulk shear
61 kt
0-1 km bulk shear
18 kt
0-1 km storm-relative helicity
-52 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.3 K/km

Open this sounding in Storm Lab

The radar

The Shreveport radar (KSHV), 116 km away, was scanning. The volume nearest the touchdown began at 01:31 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
00:56 UTCTORNADO5 Sw RuskCherokee, TXSEVERAL TREES SNAPPED.
00:59 UTCTORNADO4 Ssw RuskCherokee, TXSEVERAL TREES SNAPPED AND UPROOTED.
01:01 UTCTORNADO3 Ssw RuskCherokee, TXROOF DAMAGE AND OUTBUILDING LOFTED AND DESTROYED. SEVERAL TREES UPROOTED AND SNAPPED.
01:06 UTCTSTM WND DMG2 Ssw RuskCherokee, TXKETK LIVE FACEBOOK POST REPORTS METAL DEBRIS, METAL SHED DESTROYED, TREES DOWN ON HIGHWAY 23 SOUTH OF RUSK.
01:06 UTCTORNADO3 S RuskCherokee, TXCONCRETE POWER POLES PUSHED OVER AND SNAPPED.
01:11 UTCTSTM WND DMG5 Sw RuskCherokee, TX3 HOMES WITHOUT ROOFS WITHIN 3 MILES ONE AT CR 2210 OFF 1857, ONE FM 23 AND 2159, TREES DOWN IN THE AREA, POWER LINES DOWN IN THE AREA.
01:11 UTCTSTM WND DMGRuskCherokee, TXSHERIFF'S OFFICE REPORTS SEVERAL TREES DOWN, POWER LINES DOWN, AND SOME DAMAGE TO HOMES ON FM ROADS NEAR RUSK, REPORT DETAILS STILL COMING IN AT 835 PM.
01:27 UTCTSTM WND DMG1 Sw ReklawCherokee, TXPOWER OUT WEST OF REKLAW.
01:30 UTCTSTM WND DMG1 Ne ReklawRusk, TXMULTIPLE TREES REPORTED DOWN IN SOUTHWEST PART OF THE COUNTY ON 225 AND 84.
01:31 UTCTORNADO3 Ne ReklawRusk, TXA SINGLE FAMILY HOME WAS DESTROYED AS EF-2 TORNADIC WINDS OF AROUND 115 MPH LIFTED IT OFF OF PIER AND BEAM FOUNDATION AND MOVED IT ABOUT 15 YARDS INTO THE FOREST. A FIBERGLASS FISHING BOAT WAS LOFTED WITH WHEREABOUTS UNK
01:40 UTCTSTM WND DMGRuskCherokee, TXSHERIFF'S OFFICE REPORTS SEVERAL TREES DOWN, POWER LINES DOWN, AND SOME DAMAGE TO HOMES ON FM ROADS NEAR RUSK, REPORT DETAILS STILL COMING IN AT 835 PM.
02:00 UTCFLASH FLOODRuskCherokee, TXRUSK ELEMENTARY SCHOOL FLOODED 2ND GRADE HALL AREA, SCHOOL CLOSED DUE TO FLOODING 12/20/2017. NWS FACEBOOK POST FROM RUSK CITIZEN.
02:01 UTCFUNNEL CLOUD5 Nnw Mount EnterpriseRusk, TXFUNNEL CLOUD SPOTTED BY STORM SPOTTERS OVER MINDEN TEXAS.
02:06 UTCFLASH FLOODRuskCherokee, TXFLOODING REPORTED ON STATE HIGHWAYS 69, HIGHWAY 84 AT 1248, LOCAL STREET FLOODING IN RUSK.
02:11 UTCTSTM WND DMGCushingNacogdoches, TXLARGE TREE DOWN ACROSS ROAD SHOWN IN DASH CAM VIDEO ON WEATHERNATION TWITTER PAGE IN CUSHING TEXAS.
02:20 UTCFLASH FLOODReklawRusk, TXWATER OVER ROAD AT HWY 84 AND 204

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 TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

The other tornadoes of December 19, 2017

1 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
December 196:53 PM CSTEF2Cherokee, TX3.1691$120,000

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.