Tornadoes · United States · Texas · 2013
EF0 tornado, Evant, Texas, May 15, 2013
This EF0 tornado ran 1.0 miles across Hamilton County on May 15, 2013, touching down at 8:35 PM CDT and reaching 40 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.
EF065 to 85 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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 15, 2013
- Touchdown
- 8:35 PM CDT (01:35 UTC)
- Lifted
- 8:37 PM CDT (01:37 UTC)
- On the ground
- 2 minutes
- Path length
- 1.0 miles (1.7 km)
- Path width
- 40 yards (37 m)
- Deaths
- 0
- Injuries
- 0
- Crop damage
- $20,000
- County
- Hamilton County
- Touchdown point
- 31.502, -98.145
- Lift-off point
- 31.506, -98.128
- Record number
- 1305151935-01
What the Weather Service recorded
A tornado and severe weather outbreak occurred on the afternoon and evening hours of May 15th. Nineteen tornadoes occurred, including one EF-4 and one EF-3. Six fatalities occurred in the city of Granbury, TX. These fatalities were the first in the Fort Worth county warning area since 2006. An additional 54 people were injured by the various tornadoes during the evening of May 15th. A number of homes, 171, suffered major damaged or were destroyed. An additional 513 homes suffered minor damage or were somehow affected. ||During the afternoon of May 15th, a vigorous upper level low moved slowly southeast from the panhandle of Texas into the Red River Valley. A dry line strengthened throughout the day, triggering thunderstorms between Bowie and the DFW metroplex. As the upper storm moved slowly east and southeast, several supercell thunderstorms developed, and most of them produced tornadoes.
The Hamilton County Emergency Manager observed two nearly simultaneous tornadoes just north of Evant. This was the northernmost tornado of the two.
The Hamilton County Emergency Manager observed two nearly simultaneous tornadoes just north of Evant. This was the easternmost tornado of the two.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
8 minutes of warning. NWS FWD issued a tornado warning for this county at 01:27 UTC, 8 minutes before the tornado touched down, in force until 02:15 UTC.
The county was under a tornado watch, issued at 23:05 UTC and running to 05:51 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 23:05 UTC | 05:51 UTC | Tornado Watch | FWD |
| 23:10 UTC | 00:15 UTC | Severe Thunderstorm Warning | FWD |
| 23:17 UTC | 00:00 UTC | Tornado Warning | FWD |
| 23:59 UTC | 01:00 UTC | Tornado Warning | FWD |
| 00:59 UTC | 02:00 UTC | Severe Thunderstorm Warning | FWD |
| 01:27 UTC | 02:15 UTC | Tornado Warning | FWD |
| 02:01 UTC | 02:45 UTC | Tornado Warning | FWD |
| 02:44 UTC | 03:45 UTC | Severe Thunderstorm Warning | FWD |
| 03:28 UTC | 04:30 UTC | Severe Thunderstorm Warning | FWD |
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 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 00:59 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.
Fort Worth, TX (KFWD), 00:00Z
1.6 hours before the tornado, 168 km from the path. May 16, 2013.
- Mixed-layer CAPE
- 1604 J/kg
- Mixed-layer CIN
- -30 J/kg
- Surface CAPE
- 2573 J/kg
- Mixed-layer LCL
- 843 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 244 m²/s²
- 0-3 km storm-relative helicity
- 436 m²/s²
- Significant tornado parameter
- 3.0
- Supercell composite
- 20.6
- 0-3 km lapse rate
- 6.3 K/km
Fort Worth, TX (KFWD), 12:00Z
10.4 hours after it, 168 km from the path. May 16, 2013.
- Mixed-layer CAPE
- 25 J/kg
- Mixed-layer CIN
- -346 J/kg
- Surface CAPE
- 129 J/kg
- Mixed-layer LCL
- 1049 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 381 m²/s²
- 0-3 km storm-relative helicity
- 594 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.5
- 0-3 km lapse rate
- 3.9 K/km
The surface observations
Hamilton (MNZ), 18 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 23:35 UTC | 81.5 | 62.6 | 170° 16 kt | 20 | 1009.1 | |
| 23:55 UTC | 81 | 63.68 | 180° 14 kt | 19 | 1008.8 | |
| 00:15 UTC | 79.52 | 65.66 | 180° 12 kt | 17 | 1008.1 | -VCTSRA |
| 00:35 UTC | 78.26 | 67 | 180° 20 kt | 26 | 1007.8 | -TSRA |
| 00:55 UTC | 75.38 | 68.54 | 180° 24 kt | 31 | 1007.8 | -VCTSRA |
| 01:15 UTC | 75.2 | 69 | 170° 21 kt | 29 | 1008.1 | -VCTSRA |
| 01:35 UTC | 74.3 | 69.26 | 180° 24 kt | 34 | 1009.1 | TSRA |
| 01:55 UTC | 72.86 | 71.6 | 180° 20 kt | 31 | 1009.1 | -VCTSRA |
| 02:15 UTC | 72.68 | 70.7 | 190° 22 kt | 38 | 1009.5 | -TSRA |
| 02:55 UTC | 73.58 | 66.74 | 170° 22 kt | 38 | 1007.8 | VCTS |
From the Iowa Environmental Mesonet's archive of airport observations.
The radar
The Ft Hood radar (KGRK), 113 km away, was scanning. The volume nearest the touchdown began at 01:34 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.
What was reported nearby
Local storm reports within 60 km of the path, in the three hours either side.
| Time (UTC) | Report | Where | County | Remark |
|---|---|---|---|---|
| 23:32 UTC | HAIL 1.75 | Priddy | Mills, TX | |
| 00:00 UTC | HAIL 2.75 | Caradan | Mills, TX | BASEBALL HAIL IN CARADAN |
| 00:17 UTC | HAIL 1.75 | 2 S Indian Gap | Hamilton, TX | GOLFBALL HAIL SOUTH OF INDIAN GAP NEAR THE HAMILTON/MILLS COUNTY LINE |
| 00:52 UTC | HAIL 0.88 | 5 S Pottsville | Hamilton, TX | INTERSECTION OF 221 AND 2005 |
| 01:05 UTC | HAIL 1.75 | 9 S Hamilton | Hamilton, TX | |
| 01:12 UTC | HAIL 2.75 | 1 Sse Shive | Hamilton, TX | |
| 03:57 UTC | TSTM WND GST 59 | 2 Sw Hamilton | Hamilton, TX |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2013 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are
The other tornadoes of May 15, 2013
19 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| May 15 | 5:33 PM CDT | EF0 | Montague, TX | 1.1 | 70 | $30,000 | ||
| May 15 | 6:14 PM CDT | EF0 | Mills, TX | 3.4 | 50 | |||
| May 15 | 6:34 PM CDT | EF0 | Pontotoc, OK | 0.5 | 50 | $20,000 | ||
| May 15 | 6:41 PM CDT | EF0 | Palo Pinto, TX | 0.3 | 50 | |||
| May 15 | 6:50 PM CDT | EF1 | Montague, TX | 1.0 | 200 | 1 | $100,000 | |
| May 15 | 6:51 PM CDT | EF1 | Montague, TX | 3.6 | 240 | $125,000 | ||
| May 15 | 7:03 PM CDT | EF1 | Parker, TX | 1.9 | 400 | $60,000 | ||
| May 15 | 7:18 PM CDT | EF0 | Montague, TX | 0.9 | 150 | $40,000 | ||
| May 15 | 7:22 PM CDT | EF0 | Parker, TX | 0.5 | 70 | |||
| May 15 | 7:35 PM CDT | EF0 | Wise, TX | 0.7 | 25 | |||
| May 15 | 7:53 PM CDT | EF0 | Parker, TX | 1.5 | 200 | $40,000 | ||
| May 15 | 7:58 PM CDT | EF4 | Granbury tornado, TX | 2.5 | 400 | 6 | 54 | $143 million |
| May 15 | 8:05 PM CDT | EF0 | Parker, TX | 0.1 | 20 | $20,000 | ||
| May 15 | 8:09 PM CDT | EF1 | Hood, TX | 2.4 | 300 | $360,000 | ||
| May 15 | 8:19 PM CDT | EF0 | Johnson, TX | 0.2 | 30 | $10,000 | ||
| May 15 | 8:34 PM CDT | EF0 | Hamilton, TX | 0.2 | 30 | |||
| May 15 | 9:12 PM CDT | EF3 | Johnson, TX | 7.8 | 1,733 | 7 | $124 million | |
| May 15 | 9:45 PM CDT | EF0 | Johnson, TX | 1.3 | 400 | |||
| May 15 | 12:05 AM CDT | EF1 | Ellis, TX | 6.2 | 400 | 1 | $650,000 |
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.