Tornadoes · United States · Texas · 2018

EF0 tornado, Holiday Beach, Texas, March 29, 2018

This EF0 tornado ran 0.1 miles across Aransas County on March 29, 2018, touching down at 1:25 AM CDT and reaching 30 yards wide. It killed nobody, and did $50,000 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
March 29, 2018
Touchdown
1:25 AM CDT (06:25 UTC)
Lifted
1:26 AM CDT (06:26 UTC)
On the ground
1 minutes
Path length
0.1 miles (0.2 km)
Path width
30 yards (27 m)
Deaths
0
Injuries
0
Property damage
$50,000
County
Aransas County
Touchdown point
28.167, -97.018
Lift-off point
28.166, -97.017
Record number
1803290025-01

The damage survey

3 damage points were recorded along this path by NWS CRP, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 81 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

During the early evening hours on March 28th, isolated severe thunderstorms developed across northern Mexico and Deep South Texas. Storms formed within an environment of very unstable air and very strong vertical wind shear in advance of an approaching cold front with assistance from an approaching upper level disturbance. Severe storms occurred across the Brush Country during the evening. The storms congealed into a squall line late in the evening. Large hail and winds of at least 60 mph were observed with several of these storms across the Brush Country. During the early morning hours on March 29th, the squall line intensified as it advanced into the Coastal Bend and the Victoria area. Widespread winds between 40 and 60 mph were observed behind the squall line during this time. Sufficient low level shear in the lowest several thousand feet existed to produce mesovortices along the squall line. Several of these mesovortices produced tornadoes across the Coastal Bend during the early morning hours.

Tornado touched down on Belaire Drive removing the roof from one home with debris blown into another home across the street. Several power poles were snapped.

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

The warnings

8 minutes of warning. NWS CRP issued a tornado warning for this county at 06:17 UTC, 8 minutes before the tornado touched down, in force until 06:45 UTC.

The county was under a severe thunderstorm watch, issued at 00:38 UTC and running to 08:00 UTC.

Issued (UTC)ExpiredProductOffice
00:38 UTC08:00 UTCSevere Thunderstorm WatchCRP
05:56 UTC06:45 UTCSevere Thunderstorm WarningCRP
06:17 UTC06:45 UTCTornado WarningCRP
06:22 UTC06:45 UTCTornado WarningCRP

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 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), 00:00Z

6.4 hours before the tornado, 58 km from the path. March 29, 2018.

Skew-T log-pSkew-T log-p diagram, Corpus Christi, TX at 00:00Z on 2018-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 2587 joules per kilogram, CIN -17, lifted condensation level 645 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 2018-03-29The 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 31 square meters per square second, 0 to 6 km bulk shear 51 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
2587 J/kg
Mixed-layer CIN
-17 J/kg
Surface CAPE
4582 J/kg
Mixed-layer LCL
645 m above ground
0-6 km bulk shear
51 kt
0-1 km bulk shear
12 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.7
0-3 km lapse rate
5.8 K/km

Open this sounding in Storm Lab

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

5.6 hours after it, 58 km from the path. March 29, 2018.

Skew-T log-pSkew-T log-p diagram, Corpus Christi, TX at 12:00Z on 2018-03-29Temperature 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 -71888, lifted condensation level 1278 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, Corpus Christi, TX at 12:00Z on 2018-03-29The 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 -282 square meters per square second, 0 to 6 km bulk shear 62 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
-71888 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
1278 m above ground
0-6 km bulk shear
62 kt
0-1 km bulk shear
23 kt
0-1 km storm-relative helicity
-282 m²/s²
0-3 km storm-relative helicity
-309 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.1 K/km

Open this sounding in Storm Lab

The surface observations

Rockport/Aransas Co (RKP), 10 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
04:25 UTC150° 14 kt1005.8BR
04:29 UTC7471150° 12 kt191005.4BR
04:30 UTC150° 11 kt1005.1BR
04:35 UTC150° 12 kt181005.1BR
04:40 UTC160° 12 kt1005.1BR
04:45 UTC150° 13 kt1005.1BR
04:50 UTC160° 12 kt1005.4BR
04:53 UTC7371160° 14 kt191005.4BR
04:55 UTC160° 14 kt1005.4BR
05:00 UTC150° 15 kt1005.4BR
05:05 UTC170° 11 kt1006.1BR
05:07 UTC7371170° 12 kt201006.1BR
05:10 UTC170° 10 kt161006.4BR
05:15 UTC170° 12 kt181006.8BR
05:18 UTC7471170° 9 kt181007.1BR
05:20 UTC170° 10 kt1007.1BR
05:25 UTC170° 11 kt1007.1BR
05:35 UTC160° 13 kt181006.4BR
05:35 UTC7471160° 13 kt201006.4BR
05:40 UTC160° 14 kt1005.8BR
05:45 UTC160° 12 kt181005.4BR
05:50 UTC170° 11 kt1005.4BR
05:51 UTC73.471.6170° 10 kt231005.4BR
05:53 UTC7471170° 12 kt191005.4BR
05:55 UTC170° 10 kt171005.4BR
06:00 UTC170° 13 kt1005.1BR
06:05 UTC7471170° 13 kt221004.7VCTS BR
06:10 UTC 161006.1BR
06:15 UTC 1007.1BR
06:16 UTC7471200° 14 kt251007.5TS BR
06:20 UTC 1009.1BR
06:25 UTC 1010.2-RA BR
06:26 UTC6966290° 22 kt341010.2-TSRA BR
06:29 UTC6765300° 20 kt341009.8+TSRA FG
06:30 UTC 1010.2+RA FG
06:34 UTC6665320° 21 kt321010.8+TSRA FG
06:35 UTC 1010.8+RA FG
06:40 UTC330° 20 kt1011.2+RA FG
06:44 UTC6665330° 21 kt271010.2+TSRA BR
06:45 UTC330° 19 kt1010.2+RA BR
06:50 UTC330° 16 kt1010.2+RA BR
06:53 UTC6564340° 11 kt241010.2+TSRA BR
06:55 UTC340° 13 kt1010.2+RA BR
06:56 UTC6564340° 14 kt1010.2+TSRA BR
07:00 UTC340° 15 kt1009.8+RA BR
07:01 UTC6564350° 16 kt201009.8+TSRA BR
07:04 UTC6564350° 14 kt1009.5+TSRA BR
07:05 UTC 1009.8RA BR
07:10 UTC350° 16 kt1009.5RA BR
07:12 UTC6564350° 15 kt1009.5TSRA BR
07:15 UTC360° 15 kt1009.5-RA BR
07:20 UTC6564350° 15 kt1009.8-TSRA
07:20 UTC 1009.8-RA
07:25 UTC360° 11 kt1010.2-RA BR
07:30 UTC10° 15 kt1010.2-RA BR
07:35 UTC656410° 11 kt1010.2VCTS -RA BR
07:40 UTC20° 12 kt171009.8RA BR
07:44 UTC656320° 17 kt211009.8VCTS RA BR
07:45 UTC30° 16 kt1009.8RA BR
07:50 UTC30° 14 kt1009.5-RA BR
07:53 UTC646330° 15 kt1009.1-RA BR
07:55 UTC30° 17 kt1009.1-RA BR
08:00 UTC30° 16 kt1008.8-RA
08:05 UTC40° 13 kt1008.8-RA
08:10 UTC40° 14 kt1008.8
08:15 UTC50° 15 kt1008.8
08:20 UTC50° 17 kt1008.5-RA

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

The radar

The Corpus Christi radar (KCRP), 65 km away, was scanning. The volume nearest the touchdown began at 06:26 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
05:56 UTCTORNADOWoodsboroRefugio, TXPRELIMINARY EF0 TORNADO. SEVERAL HOMES MISSING ROOFS. WINDOWS BLOWN OUT OF MANY HOMES.
05:56 UTCTORNADOWoodsboroRefugio, TXPRELIMINARY F0 TORNADO. SEVERAL HOMES MISSING ROOFS. WINDOWS BLOWN OUT OF MANY HOMES.
05:56 UTCTORNADOWoodsboroRefugio, TXSEVERAL HOMES MISSING ROOFS. WINDOWS BLOWN OUT OF MANY HOMES. UNCONFIRMED REPORTS OF ADDITIONAL SIGNIFICANT HOME DAAMAGE. POSSIBLY DUE TO A TORNDO.
05:56 UTCTORNADOWoodsboroRefugio, TXSEVERAL HOMES MISSING ROOFS. WINDOWS BLOWN OUT OF MANY HOMES. UNCONFIRMED REPORTS OF ADDITIONAL SIGNIFICANT HOME DAMAGE. POSSIBLY DUE TO A TORNADO.
05:56 UTCTORNADOWoodsboroRefugio, TXPRELIMINARY EF0 TORNADO. SEVERAL HOMES WITH BLOWN OUT WINDOWS AND MISSING/DAMAGED ROOFS.
06:11 UTCTSTM WND DMGDowntown Corpus ChristiNueces, TXTREES DOWN ON CARS ON CHAPARRAL ST
06:15 UTCMARINE TSTM WIND 471 Nw Texas A&M Corpus CGmz230, TXMEASURED AT WEATHERFLOW SITE AT POENISCH PARK ALONG CORPUS CHRISTI BAY
06:42 UTCTSTM WND GST 601 Sse SeadriftCalhoun, TXMEASURED AT SEADRIFT HARBOR
06:42 UTCMARINE TSTM WIND 601 Sse SeadriftCalhoun, TXPEAK GUST AT SEADRIFT TCOON SITE
06:43 UTCTORNADOSeadriftCalhoun, TXPRELIMINARY EF1 TORNADO. COMPLETE DESTRUCTION OF 1 MOBILE HOME. SEVERAL MOBILE HOMES FLIPPED. ROOF DAMAGE TO SEVERAL HOMES AND OUTBUILDINGS.
06:43 UTCTORNADOSeadriftCalhoun, TXPRELIMINARY EF1 TORNADO. COMPLETE DISTRUCTION OF 1 MOBILE HOME. SEVERAL MOBILE HOMES FLIPPED. ROOF DAMAGE TO SEVERAL HOMES AND OUTBUILDINGS.
06:43 UTCTORNADOSeadriftCalhoun, TXTX DPS REPORTS POSSIBLE TORNADO IN SEADRIFT WITH DAMAGE TO HOME.
06:43 UTCTORNADOSeadriftCalhoun, TXTX DPS REPORTS POSSIBLE TORNADO IN SEADRIFT WITH DAMAGE TO HOMES.
06:43 UTCTORNADOSeadriftCalhoun, TXPRELIMINARY EF1 TORNADO. COMPLETE DESTRUCTION OF ONE MOBILE HOME. SEVERAL MOBILE HOMES FLIPPED. ROOF DAMAGE TO SEVERAL HOMES AND OUTBUILDINGS.

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

This ground now

The live radar over the trackEvery 2018 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

The other tornadoes of March 29, 2018

6 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
March 291:39 AM CDTEF1Calhoun, TX0.4150$1.0 million
March 292:16 AM CDTEF0Brazoria, TX0.020$1,000
March 294:21 AM CDTEF0Calcasieu Parish, LA0.9150$10,000
March 294:36 AM CDTEF1Calcasieu Parish, LA6.3800$100,000
March 294:47 AM CDTEF1Calcasieu Parish, LA1.9425$100,000
March 295:14 AM CDTEF1Allen Parish, LA4.4900$300,000

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.