Tornadoes · United States · Texas · 2024

EF3 tornado, Robert Lee Arpt to Robert Lee, Texas, May 3, 2024

From Robert Lee Arpt to Robert Lee, this EF3 tornado ran 3.5 miles across Coke County on May 3, 2024, touching down at 4:35 PM CDT and reaching 350 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 mphthis tornado

    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
EF3
Date
May 3, 2024
Touchdown
4:35 PM CDT (21:35 UTC)
Lifted
4:55 PM CDT (21:55 UTC)
On the ground
20 minutes
Path length
3.5 miles (5.7 km)
Path width
350 yards (320 m)
Deaths
0
Injuries
0
County
Coke County
Touchdown point
31.837, -100.490
Lift-off point
31.839, -100.438
Record number
2405031535-02

The damage survey

7 damage points were recorded along this path by NWS SJT, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EFU. The highest wind the damage implies is 140 mph.

  • Walls of main house are intact but roof is heavily damaged and was mostly torn off, many trees broken and outbuildings destroyed
  • Storm chaser reported very large tornado.
  • Owner's refrigerator found on neighbor's property months after tornado struck.
  • From the owner: "The metal building had siding and a wall there where you see it open now. It was a completely enclosed barn but the tornado ripped off the one side of the wall and damaged all of the other siding as well. All the repair estimates have been to replace all the siding or Knock it down and start over. I only tell you this because a couple of the contractors thought it was built with that one wall open, but it was not, it was completely enclosed with siding like a barn"

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 favorable weather pattern for widespread severe weather was in place across west central Texas during early May. There was an upper level southwest flow and a sharp dryline in the area. Also, extreme instability was present along with strong vertical wind shear during the late afternoon and evening hours. Supercell thunderstorms developed and produced strong tornadoes in Jones, Runnels and Sterling counties which resulted in damage to homes and other structures. Also, severe thunderstorms produced giant size hail and damaging winds.

The Robert Lee Tornado completely destroyed a manufactured home just west of|Highway 208 as well as damaged the walls and roof of a metal barn|next door to the home. In addition, the tornado damaged the roof|of a home along Highway 208 and snapped some large tree limbs.|Also, the tornado lifted the roof off a concrete building on|Valley View Road. The tornado then moved back to the northwest|before weakening and occluding south of Robert Lee. The estimated |wind speed was 140 mph.

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

What forecasters said that day

The local office's own words before the tornado touched down, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Angelo, TX wrote its last area forecast discussion before the tornado touched down at May 3, 2:24 PM CDT, 2 hours 11 minutes earlier.

Area forecast discussion, May 3, 2:24 PM CDT, 2 hours 11 minutes before
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Hazardous weather outlook, May 3, 1:27 PM CDT, 3 hours 8 minutes before
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In the hours before

Local storm report, May 3, 3:54 PM CDT, 41 minutes before
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Local storm report, May 3, 3:57 PM CDT, 38 minutes before
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Local storm report, May 3, 4:15 PM CDT, 20 minutes before
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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.

Midland Regional, TX (KMAF), 12:00Z

9.6 hours before the tornado, 164 km from the path. May 3, 2024.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 12:00Z on 2024-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1108 joules per kilogram, CIN -177, lifted condensation level 1714 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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, Midland Regional, TX at 12:00Z on 2024-05-03The 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 15 square meters per square second, 0 to 6 km bulk shear 25 knots.193958Sfc1 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
1108 J/kg
Mixed-layer CIN
-177 J/kg
Surface CAPE
646 J/kg
Mixed-layer LCL
1714 m above ground
0-6 km bulk shear
25 kt
0-1 km bulk shear
4 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
5.4 K/km

Open this sounding in Storm Lab

The surface observations

San Angelo/Mathis (SJT), 54 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
00:00 UTC

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

The radar

The San Angelo radar (KSJT), 52 km away, was scanning. The volume nearest the touchdown began at 21:34 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.

This ground now

The live radar over the trackEvery 2024 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

The other tornadoes of May 3, 2024

8 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 33:40 PM CDTEF2Coke, TX4.5125
May 34:35 PM CDTUnratedHale, TX0.030
May 38:10 PM CDTEF0Kearny, KS0.010
May 38:53 PM CDTEF1Phelps, NE0.750$40,000
May 39:08 PM CDTEF1Phelps, NE5.3850$500,000
May 39:09 PM CDTEF0Harlan, NE7.1500$750,000
May 39:11 PM CDTEF1Phelps, NE1.3250$150,000
May 310:51 PM CDTEF0Webster, NE5.880$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.