EF1 tornado, Delhi to Barker, Texas, April 10, 2024

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 mphthis tornado

   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.

Rating

EF1

Date

April 10, 2024

Touchdown

2:47 AM CDT (07:47 UTC)

Lifted

2:49 AM CDT (07:49 UTC)

On the ground

2 minutes

Path length

1.7 miles (2.7 km)

Path width

300 yards (274 m)

Deaths

0

Injuries

0

Property damage

$500,000

County

Harris County

Touchdown point

29.772, -95.752

Lift-off point

29.773, -95.724

Record number

2404100147-01

5 damage points were recorded along this path by NWS HGX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 90 mph.

• Brief EF1 touchdown. Most damage laying se direction. However, some damage including heavy roof AC unit thrown from roof more n-ne direction. Firestone dealership most significant damage. Likely glass windows blown out and entire roof outer wall collapse.
• Roof damage and large commercial AC unit blown off roof to the n-ne. Also, light poles on north side of damage blown opposite prevailing damage throw/storm motion.
• Approx stopping point of tree damage
• Approx nrn extent near end of damage

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

Late night through early morning severe thunderstorms moved eastward across the area and produced hail, strong winds and some tornadoes.

A tornado initially touched down near or over Mason Road and immediately produced winds of approximately 90 mph as it destroyed a Firestone commercial building and significantly damaged the commercial strip mall in the vicinity (EF1). The building room and southern outer wall appeared to fail when tornadic winds blew out the west facing windows in the lobby. A large commercial AC unit was thrown from south to north into the parking lot, with the Firestone building and majority of debris pushed more east to west. After leaving the touchdown point, the circulation then broadened and weakened to EF0 after it moved another 1.5 miles or so through the adjacent neighborhood to the east. Many trees were damaged (large limbs and some uprooting). There was only minor structural damage outside of that caused by downed trees and branches. Winds were generally 65 to 75 mph across this track.

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

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

The county was under a severe thunderstorm watch, issued at 04:50 UTC and running to 10:03 UTC.

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 Storm Prediction Center had this point in a General Thunderstorms Risk. The outlook in force was issued at 05:39 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 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.

Houston Exec (TME), 16 km from the path, in the two hours either side.

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

The Houston radar (KHGX), 72 km away, was scanning. The volume nearest the touchdown began at 07:44 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.

Local storm reports within 60 km of the path, in the three hours either side.

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

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

29 more were confirmed in the United States that day.

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.

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.