Tornadoes · United States · Texas · 2019

EF0 tornado, Praha, Texas, May 3, 2019

This EF0 tornado ran 2.8 miles across Lavaca and Fayette counties on May 3, 2019, touching down at 7:14 AM CDT and reaching 20 yards wide. It killed nobody, and did $20,000 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 3, 2019
Touchdown
7:14 AM CDT (12:14 UTC)
Lifted
7:26 AM CDT (12:26 UTC)
On the ground
12 minutes
Path length
2.8 miles (4.5 km)
Path width
20 yards (18 m)
Deaths
0
Injuries
0
Property damage
$20,000
Counties
Lavaca and Fayette counties
Touchdown point
29.602, -97.087
Lift-off point
29.642, -97.085
Record number
1905030614-01

The damage survey

10 damage points were recorded along this path by NWS EWX, 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

Convection from the previous day left a number of outflow boundaries across South Central Texas. These interacted with a mid to upper level shortwave trough to trigger thunderstorms. Some of these storms produced tornadoes, large hail, damaging wind gusts, and heavy rain that led to flash flooding.

A small EF0 tornado formed early Friday morning as showers and storms were moving north through western Lavaca County. The tornado touched down just northeast of Moulton in Lavaca County and traveled 1.9 miles and then crossed into Fayette County about 100 yards west of CR 257. Some oak tree damage was found along the fence line on and along CR 256 near the intersection with CR 257 just northeast of Moulton. The weak tornado damaged some trees as it moved north fairly close to CR 257 and CR 257A. Maximum winds were estimated to be 75 mph.

A small EF0 tornado formed early Friday morning as showers and storms were moving north through western Lavaca County. The tornado touched down just northeast of Moulton in Lavaca County and traveled 1.9 miles and then crossed into Fayette County about 100 yards west of CR 257. It continued for another 0.9 miles in Fayette County. Tree damage was found on E. Wiedemann Rd. just on the other side of the Lavaca County line in far southern Fayette County. It appears that the weak tornado dissipated near this location as no other damage was found farther north. Maximum winds were estimated to be 75 mph.

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.

Issued (UTC)ExpiredProductOffice
13:40 UTC15:45 UTCFlood AdvisoryEWX
14:14 UTC15:00 UTCSevere Thunderstorm WarningEWX
14:37 UTC15:15 UTCTornado WarningEWX
14:57 UTC15:45 UTCSevere Thunderstorm WarningEWX
21:35 UTC03:58 UTCSevere Thunderstorm WatchEWX
01:54 UTC03:00 UTCSevere Thunderstorm WarningEWX
02:49 UTC03:45 UTCSevere Thunderstorm WarningEWX
03:22 UTC06:15 UTCFlood AdvisoryEWX

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 05:55 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.

Corpus Christi, TX (KCRP), 12:00Z

0.2 hours before the tornado, 212 km from the path. May 3, 2019.

Skew-T log-pSkew-T log-p diagram, Corpus Christi, TX at 12:00Z on 2019-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 2136 joules per kilogram, CIN -6, lifted condensation level 572 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, Corpus Christi, TX at 12:00Z on 2019-05-03The 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 62 square meters per square second, 0 to 6 km bulk shear 43 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
2136 J/kg
Mixed-layer CIN
-6 J/kg
Surface CAPE
2329 J/kg
Mixed-layer LCL
572 m above ground
0-6 km bulk shear
43 kt
0-1 km bulk shear
8 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
157 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.7
0-3 km lapse rate
5.2 K/km

Open this sounding in Storm Lab

Corpus Christi, TX (KCRP), 00:00Z

11.8 hours after it, 212 km from the path. May 4, 2019.

Skew-T log-pSkew-T log-p diagram, Corpus Christi, TX at 00:00Z on 2019-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 556 joules per kilogram, CIN -113, lifted condensation level 1108 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, Corpus Christi, TX at 00:00Z on 2019-05-04The 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 94 square meters per square second, 0 to 6 km bulk shear 49 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
556 J/kg
Mixed-layer CIN
-113 J/kg
Surface CAPE
4207 J/kg
Mixed-layer LCL
1108 m above ground
0-6 km bulk shear
49 kt
0-1 km bulk shear
15 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.1
Supercell composite
3.9
0-3 km lapse rate
6.5 K/km

Open this sounding in Storm Lab

The surface observations

La Grange/Fayette Regional (3T5), 35 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
10:15 UTC69.469.40° 0 kt1012.5
10:35 UTC69.869.80° 0 kt1012.5
10:55 UTC70700° 0 kt1012.5
11:15 UTC70700° 0 kt1012.2
11:35 UTC70.270.20° 0 kt1012.2
11:55 UTC70.770.70° 0 kt1012.2VCTS
12:15 UTC71710° 0 kt1012.2VCTSRA
12:35 UTC71.671.60° 0 kt1012.9VCTSRA
12:55 UTC71.871.890° 3 kt1012.5VCTSRA
13:15 UTC72720° 0 kt1012.9RA
13:35 UTC72720° 0 kt1012.5+VCTSRA
13:55 UTC71.871.8360° 8 kt1011.5+RA

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

The radar

The Austin/San Antonio radar (KEWX), 92 km away, was scanning. The volume nearest the touchdown began at 12:14 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
13:20 UTCTORNADO6 Ene FlatoniaFayette, TXCONFIRMED VIA FAYETTE COUNTY LAW ENFORCEMENT. REPORTS OF DAMAGE.
14:00 UTCHEAVY RAIN 2.73 Ne MuldoonFayette, TXMESONET STATION MLDT2 BUCKNERS CREEK NEAR MULDOON REPORTED 2.70 INCHES IN 1 HOUR.
14:07 UTCTORNADO5 Wnw La GrangeFayette, TXREPORTS OF DAMAGE TO MULTIPLE INDUSTRIAL BUILDINGS ALONG HWY 71.
14:49 UTCHAIL 0.751 Nnw HallettsvilleLavaca, TXRECEIVED REPORT OF PENNY SIZE HAIL JUST NORTH OF HALLETTSVILLE. HEAVIER STORM CORE PASSED NORTH OF THIS LOCATION.
14:50 UTCHAIL 17 Nne HallettsvilleLavaca, TXOWNER OF CURTS CARPETING AND DESIGN CENTER NORTH OF HALLETTSVILLE REPORTED QUARTER SIZE HAIL AT HER HOME, 2 MILES NORTH OF THEIR BUSINESS.
14:55 UTCHAIL 1.257 Nne HallettsvilleLavaca, TXOWNER OF A FARM ALONG HWY 77 REPORTED HAIL BIGGER THAN QUARTERS NORTH OF HALLETTSVILLE.

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 May 3, 2019

7 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 38:14 AM CDTEF0Fayette, TX4.220$50,000
May 39:04 AM CDTEF2Fayette, TX2.475$4.0 million
May 312:59 PM CDTEF0Brewster, TX0.150
May 31:22 PM CDTEF0Colorado, TX0.520
May 32:00 PM CDTEF0Harris, TX0.315
May 34:50 PM EDTEF0Palm Beach, FL0.020
May 36:34 PM CDTEF0Glasscock, TX0.150

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.