Tornadoes · United States · Texas · 2019

Unrated tornado, Pantex, Texas, April 17, 2019

This Unrated tornado ran 2.0 miles across Carson County on April 17, 2019, touching down at 5:05 PM CDT and reaching 20 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 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 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. Unratedthis tornado

    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
Unrated
Date
April 17, 2019
Touchdown
5:05 PM CDT (22:05 UTC)
Lifted
5:19 PM CDT (22:19 UTC)
On the ground
14 minutes
Path length
2.0 miles (3.2 km)
Path width
20 yards (18 m)
Deaths
0
Injuries
0
County
Carson County
Touchdown point
35.247, -101.496
Lift-off point
35.229, -101.523
Record number
1904171605-01

What the Weather Service recorded

A cold front stalled across the Texas Panhandle, and was oriented from southwest to northeast over the region. The temperatures and moisture contrast along the front in-conjunction with a potent mid-level disturbance provided plenty of instability and lift for thunderstorms to develop. Sufficient wind shear allowed for supercells to develop and some of these storms produced large hail up to 2 in diameter and tornadoes. Some storms produced accumulating hail with some locations several inches deep. As a result of the rapid melting of hail and heavy rainfall, flooding was also reported. Three tornadoes and one landspout were reported. Two tornadoes and the landspout had an EF-unknown rating as they remained in open grasslands and did not cause any damage. One tornado had an EF-0 rating with tree damage and large tree branches snapped.

Landspout reported by broadcast media and Rick Husband International Airport. Landspout lifted 2 miles east of airport.

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. One was issued for the county at another hour that day.

The county was under a severe thunderstorm watch, issued at 18:33 UTC and running to 00:16 UTC.

Issued (UTC)ExpiredProductOffice
18:33 UTC00:16 UTCSevere Thunderstorm WatchAMA
22:05 UTC23:00 UTCSevere Thunderstorm WarningAMA
22:16 UTC01:15 UTCFlood AdvisoryAMA
22:20 UTC22:36 UTCTornado WarningAMA
22:21 UTC23:03 UTCSevere Thunderstorm WarningAMA
22:49 UTC23:28 UTCSevere Thunderstorm WarningAMA
22:53 UTC23:26 UTCSevere Thunderstorm WarningAMA
00:35 UTC03:30 UTCFlood AdvisoryAMA

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 Slight Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 19:31 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.

Amarillo Airport, TX (KAMA), 12:00Z

10.1 hours before the tornado, 17 km from the path. April 17, 2019.

Skew-T log-pSkew-T log-p diagram, Amarillo Airport, TX at 12:00Z on 2019-04-17Temperature 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 -47819, lifted condensation level 2860 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, Amarillo Airport, TX at 12:00Z on 2019-04-17The 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 18 square meters per square second, 0 to 6 km bulk shear 28 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
0 J/kg
Mixed-layer CIN
-47819 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
2860 m above ground
0-6 km bulk shear
28 kt
0-1 km bulk shear
8 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
33 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 surface observations

Amarillo - Rick Husband Intl (AMA), 18 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
20:05 UTC30° 17 kt1005.4
20:10 UTC30° 18 kt1005.4
20:15 UTC 17 kt1005.4
20:20 UTC30° 19 kt1005.4
20:25 UTC40° 15 kt1005.1
20:30 UTC30° 19 kt1004.7
20:35 UTC40° 17 kt1004.7
20:40 UTC40° 15 kt1004.7
20:45 UTC30° 18 kt1004.7
20:50 UTC20° 17 kt1004.4
20:53 UTC764830° 18 kt241004.4
20:55 UTC 18 kt1004.4
21:00 UTC30° 20 kt1004.4
21:05 UTC 19 kt1004.1
21:10 UTC 20 kt1004.1
21:15 UTC30° 19 kt1004.1
21:20 UTC 16 kt1004.4
21:25 UTC 18 kt1004.1
21:30 UTC40° 10 kt1004.1
21:35 UTC40° 13 kt1004.1
21:40 UTC20° 11 kt1003.7
21:45 UTC30° 10 kt1003.7
21:50 UTC73.446.410° 10 kt1003.7HZ
21:51 UTC73.446.410° 10 kt1003.7HZ TS
21:53 UTC744610° 12 kt1003.7TS HZ
21:55 UTC10° 10 kt1003.7HZ
22:00 UTC350° 10 kt1003.7
22:04 UTC7145360° 10 kt1003.4TS
22:05 UTC360° 9 kt1003.7
22:10 UTC360° 11 kt1003.7
22:15 UTC350° 8 kt1003.7
22:20 UTC80° 8 kt1004.1
22:21 UTC674890° 11 kt1003.7FC TS
22:25 UTC 18 kt1004.1
22:30 UTC 14 kt1004.1
22:35 UTC50° 17 kt1004.1-RA
22:40 UTC50° 20 kt1004.1-RA
22:45 UTC50° 19 kt1003.7-RA
22:50 UTC60° 23 kt1004.1-RA
22:51 UTC55.446.460° 26 kt371004.4-TSRA
22:53 UTC564680° 25 kt371004.7-TSRA
22:55 UTC 22 kt1005.1-RA
23:00 UTC 15 kt1005.4-RA
23:05 UTC 17 kt1006.4-RA
23:10 UTC 1006.8
23:11 UTC5946160° 22 kt301006.8TS
23:15 UTC 14 kt1007.1
23:19 UTC5946120° 16 kt291007.1TS
23:20 UTC 21 kt1007.1
23:25 UTC 13 kt1007.1-RA
23:30 UTC 13 kt1006.8-RA
23:32 UTC5647130° 13 kt1006.8-TSRA
23:35 UTC 14 kt1006.8-RA
23:40 UTC250° 11 kt1007.8-RA
23:41 UTC5144250° 11 kt191007.8+TSRA
23:45 UTC260° 19 kt1008.1+RA
23:50 UTC250° 16 kt1008.5+RA BR
23:53 UTC4945250° 15 kt251008.8+TSRA BR
23:55 UTC260° 14 kt191008.8RA BR
00:00 UTC5045260° 13 kt1008.8TSRA

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

The radar

The Amarillo radar (KAMA), 18 km away, was scanning. The volume nearest the touchdown began at 22:06 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
19:13 UTCHAIL 1HowardwickDonley, TXACCUMULATING HAIL OF BETWEEN DIME AND QUARTER SIZE.
19:18 UTCHAIL 12 Ne HowardwickDonley, TX
19:32 UTCFLOODHowardwickDonley, TXWATER OVER ROADWAY ON TEXAS HIGHWAY 70 IN HOWARDWICK, ACCUMULATING HAIL SEVERAL INCHES DEEP.
19:32 UTCHAIL 1HowardwickDonley, TXWATER OVER ROADWAY ON TEXAS HIGHWAY 70 IN HOWARDWICK, ACCUMULATING HAIL SEVERAL INCHES DEEP.
22:02 UTCHAIL 0.756 Wsw PanhandleCarson, TX
22:05 UTCTORNADO6 Ne WashburnCarson, TXA LANDSPOUT TORNADO WAS REPORTED BY BROADCAST MEDIA AND FAA TOWER PERSONNEL AT RICK HUSBAND INTERNATIONAL AIRPORT. NWS SURVEY INFORMATION SUGGESTS THE TORNADO TOUCHDOWN BEGAN AT 0505 PM 6 MILES NORTHEAST OF WASHBURN AND
22:05 UTCTORNADO6 Ne WashburnCarson, TXLANDSPOUT REPORTED BY BROADCAST MEDIA AND RICK HUSBAND INTERNATIONAL AIRPORT. LANDSPOUT LIFTED 2 MILES EAST OF AIRPORT.
22:15 UTCHAIL 1.254 Ese PantexCarson, TX
22:17 UTCHAIL 0.88Valley De OroPotter, TX
22:49 UTCHAIL 0.887 Nw CanyonRandall, TX
22:53 UTCHAIL 16 Wnw Timbercreek CanyoRandall, TXLATE REPORT OF ACCUMULATING HAIL RANGING FROM DIMES TO QUARTERS. GROUND WAS COVERED UP TO SEVERAL INCHES DEEP.
22:56 UTCHAIL 0.757 Nw CanyonRandall, TXACCUMULATING HAIL ON THE GROUND. LOTS OF HAIL REDUCING VISIBILITY.
00:00 UTCFLOOD3 Sw AmarilloRandall, TXSOUTH WASHINGTON STREET DOWN TO ONE LANE IN EITHER DIRECTION DUE TO WATER ON ROAD WAY. JUST SOUTH OF I-27. TIME ESTIMATED BASED ON RADAR.

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

This ground now

The live radar over the trackEvery 2019 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

The other tornadoes of April 17, 2019

8 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 173:39 PM CDTUnratedHemphill, TX2.430
April 173:54 PM CDTEF0Hemphill, TX4.340
April 174:29 PM CDTUnratedLipscomb, TX1.130
April 174:47 PM CDTEF1Ellis, OK1.650$20,000
April 174:49 PM CDTEF0Ellis, OK1.310$1,000
April 176:38 PM CDTUnratedSumner, KS1.130
April 177:50 PM CDTUnratedGreenwood, KS0.130
April 1712:50 AM CDTEF0Dade, MO2.050$100,000

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.