Tornadoes · United States · Texas · 2020

EF0 tornado, Senate, Texas, March 18, 2020

This EF0 tornado ran 0.7 miles across Jack County on March 18, 2020, touching down at 10:21 PM CDT and reaching 46 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.

  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
March 18, 2020
Touchdown
10:21 PM CDT (03:21 UTC)
Lifted
10:23 PM CDT (03:23 UTC)
On the ground
2 minutes
Path length
0.7 miles (1.1 km)
Path width
46 yards (42 m)
Deaths
0
Injuries
0
County
Jack County
Touchdown point
33.163, -98.289
Lift-off point
33.165, -98.277
Record number
2003182121-01

What the Weather Service recorded

An upper level trough near the region contributed to several rounds of severe weather over a 2 day period. The first round was an MCS that resulted in flooding across parts of North Texas. The second round resulted in a few tornadoes to the west and northwest of the DFW Metroplex. The final round was afternoon convection that produced some small hail around the DFW Metroplex.

A tornado began in southwestern Jack County approximately 1 mile south of US-380 just east of Marley Road. The tornado briefly touched down and moved from southwest to northeast, and its damage was confined to trees in the area. Several tree trunks were snapped halfway up the trunk or uprooted in-tact. Many of the surrounding trees also had small to large branches broken. The tornado then lifted before reaching Dark Corner Road. Maximum winds with this tornado were estimated at 100 mph.

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

The warnings

1 minute of warning. NWS FWD issued a tornado warning for this county at 03:20 UTC, 1 minute before the tornado touched down, in force until 04:00 UTC.

The county was under a tornado watch, issued at 21:48 UTC and running to 05:00 UTC.

Issued (UTC)ExpiredProductOffice
21:48 UTC05:00 UTCTornado WatchFWD
01:20 UTC02:15 UTCSevere Thunderstorm WarningFWD
01:48 UTC02:30 UTCTornado WarningFWD
03:20 UTC04:00 UTCTornado WarningFWD
03:33 UTC06:30 UTCFlash Flood WarningFWD
07:20 UTC09:54 UTCTornado WatchFWD
08:17 UTC09:00 UTCTornado WarningFWD

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 Enhanced Risk, with a 0.10 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 00:48 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.

Fort Worth, TX (KFWD), 00:00Z

3.4 hours before the tornado, 100 km from the path. March 19, 2020.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2020-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1265 joules per kilogram, CIN -2, lifted condensation level 888 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 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, Fort Worth, TX at 00:00Z on 2020-03-19The 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 198 square meters per square second, 0 to 6 km bulk shear 58 knots.19395878Sfc1 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
1265 J/kg
Mixed-layer CIN
-2 J/kg
Surface CAPE
2645 J/kg
Mixed-layer LCL
888 m above ground
0-6 km bulk shear
58 kt
0-1 km bulk shear
26 kt
0-1 km storm-relative helicity
198 m²/s²
0-3 km storm-relative helicity
237 m²/s²
Significant tornado parameter
1.9
Supercell composite
11.8
0-3 km lapse rate
7.1 K/km

Open this sounding in Storm Lab

Fort Worth, TX (KFWD), 12:00Z

8.6 hours after it, 100 km from the path. March 19, 2020.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 12:00Z on 2020-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 138 joules per kilogram, CIN -258, lifted condensation level 914 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, Fort Worth, TX at 12:00Z on 2020-03-19The 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 690 square meters per square second, 0 to 6 km bulk shear 71 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
138 J/kg
Mixed-layer CIN
-258 J/kg
Surface CAPE
815 J/kg
Mixed-layer LCL
914 m above ground
0-6 km bulk shear
71 kt
0-1 km bulk shear
58 kt
0-1 km storm-relative helicity
690 m²/s²
0-3 km storm-relative helicity
686 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

The surface observations

Graham_muni_arpt (RPH), 26 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
01:35 UTC65.363120° 9 kt161011.2-RA
01:55 UTC65.56390° 6 kt1010.8-DZ
02:15 UTC65.364100° 5 kt1010.8RA
02:35 UTC66.665.8130° 11 kt141011.5+RA
02:55 UTC65.865.320° 7 kt201011.2+RA
03:15 UTC66.264.6110° 5 kt1011.5
03:35 UTC65.764.40° 0 kt1011.5
03:55 UTC65.564180° 4 kt1011.2
04:15 UTC64.463.5150° 3 kt1011.5
04:35 UTC62.862130° 4 kt1011.5
04:55 UTC6261.7110° 4 kt1011.2
05:15 UTC61.761.2110° 3 kt1010.8

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

The radar

The Dallas/Ft Worth radar (KFWS), 113 km away, was scanning. The volume nearest the touchdown began at 03:18 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
01:56 UTCTORNADO7 Ese JacksboroJack, TXNWS SURVEY TEAM FOUND EF-0 DAMAGE TO A MANUFACTURED BUILDING AND TREES SOUTHEAST OF JACKSBORO. PATH LENGTH 1.8 MILES. WIDTH 55 YARDS. ESTIMATED PEAK WINDS 80 MPH.
02:09 UTCTORNADO6 Se JacksboroJack, TXTORNADO REPORTED NORTH OF HIGHWAY 199 6 MILES SOUTHEAST OF JACKSBORO
02:20 UTCTORNADO5 Nw Lake BridgeportWise, TXNWS SURVEY FOUND EVIDENCE OF EF-1 DAMAGE TO A HOME ALONG MOONLIGHT BAY DRIVE. ROOF WAS PARTIALLY TORN OFF OF ONE HOUSE. SIGNIFICANT TREE DAMAGE ALONG PATH. 2 MOBILE HOMES DAMAGED. PATH LENGTH 4.1 MILES. WIDTH 575 YARDS.
02:24 UTCTORNADO9 Sw GrahamYoung, TX*** 2 INJ *** NWS SURVEY TEAM FOUND EVIDENCE OF EF-1 DAMAGE ALONG HWY 67 NEAR GRAHAM. MULTIPLE HOMES DAMAGED ALONG ROSSER RANCH ROAD. SEVERAL HOMES AND BUSINESSES DAMAGED NEAR SOUTH BEND. PATH LENGTH 5.2 MILES. WIDTH 375
02:34 UTCTSTM WND DMGSouth BendYoung, TXDAMAGE TO HOMES, TREES AND POWER LINES AT HIGHWAY 67 AND FM 701 IN SOUTH BEND
02:36 UTCTORNADO5 Sse GrahamYoung, TX*** 1 INJ *** EF-0 DAMAGE WAS CONFINED TO MAINLY TREES AND ONE HOME WHICH SUSTAINED ROOF DAMAGE. THIS OCCURRED SOUTH OF PETTUS LN NEAR HWY 16. PATH LENGTH 1.5 MILES. WIDTH 120 YARDS. ESTIMATED PEAK WINDS 80 MPH.
02:44 UTCTSTM WND DMGSouth BendYoung, TXWIND DAMAGE REPORTED IN SOUTH BEND ON HIGHWAY 67
02:56 UTCTSTM WND DMGBridgeportWise, TXNUMEROUS LARGE TREES DOWN IN BRIDGEPORT
03:01 UTCTSTM WND DMG4 S GrahamYoung, TXHOUSES DAMAGED ON ROSSER RANGE ROAD OFF OF HIGHWAY 67.
03:21 UTCTORNADO6 E BrysonJack, TXEF-1 DAMAGE WAS CONFINED TO TREES SOUTH OF US 380. PATH LENGTH 0.7 MILES. WIDTH 45 YARDS. ESTIMATED PEAK WINDS 100 MPH.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2020 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

The other tornadoes of March 18, 2020

6 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
March 188:56 PM CDTEF0Jack, TX1.855$25,000
March 189:04 PM CDTEF0Stephens, TX1.512
March 189:20 PM CDTEF0Wise, TX4.0575$70,000
March 189:24 PM CDTEF0Young, TX5.23752
March 189:36 PM CDTEF0Young, TX1.61201$3,000
March 1810:07 PM CDTEF0Wise, TX0.8100$1,000

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.