Alert archive / Texas / Tornado Watches in 2019

Tornado Watch 184

May 18, 201925 counties in Texas

The Storm Prediction Center issued this tornado watch at May 18, 2019, 1:16 PM CDT for 25 counties in Texas. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued
May 18, 2019, 1:16 PM CDT (18:16 UTC)
Expired
May 18, 2019, 10:16 PM CDT
In force
9 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 25 counties

Anderson County, TX, Bastrop County, TX, Bell County, TX, Blanco County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, Falls County, TX, Freestone County, TX, Gillespie County, TX, Hays County, TX, Houston County, TX, Kendall County, TX, Kerr County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Llano County, TX, Madison County, TX, Milam County, TX, Robertson County, TX, Travis County, TX, Williamson County, TX

The radar

The Ft Hood radar (KGRK), 32 km from the middle of the area, began a volume at 18:16 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
50%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
60%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
60%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

18 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 18, 2:06 PM CDTSevere Thunderstorm WarningFWDBell, Coryell54 min
May 18, 2:43 PM CDTSevere Thunderstorm WarningFWDFalls, McLennan62 min
May 18, 2:59 PM CDTSevere Thunderstorm WarningFWDBell31 min
May 18, 3:37 PM CDTSevere Thunderstorm WarningFWDBell, Falls, Limestone, McLennan38 min
May 18, 4:05 PM CDTSevere Thunderstorm WarningFWDFalls, Freestone, Limestone55 min
May 18, 4:36 PM CDTSevere Thunderstorm WarningFWDAnderson, Henderson54 min
May 18, 4:59 PM CDTSevere Thunderstorm WarningFWDFreestone, Limestone61 min
May 18, 5:29 PM CDTSevere Thunderstorm WarningFWDAnderson, Henderson38 min
May 18, 5:45 PM CDTFlash Flood WarningFWDFreestone, Limestone2 hr
May 18, 5:59 PM CDTSevere Thunderstorm WarningFWDAnderson, Freestone, Limestone61 min
May 18, 6:40 PM CDTSevere Thunderstorm WarningFWDAnderson65 min
May 18, 6:49 PM CDTSevere Thunderstorm WarningFWDFreestone, Leon, Limestone, Robertson56 min
May 18, 7:39 PM CDTSevere Thunderstorm WarningFWDLeon51 min
May 18, 8:17 PM CDTSevere Thunderstorm WarningHGXHouston43 min
May 18, 9:04 PM CDTSevere Thunderstorm WarningFWDAnderson26 min
May 18, 9:21 PM CDTSevere Thunderstorm WarningFWDAnderson27 min
May 18, 9:37 PM CDTSevere Thunderstorm WarningFWDLeon53 min
May 18, 9:45 PM CDTSevere Thunderstorm WarningHGXHouston45 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 6.3 hours before the alert went out and 216 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 12:00Z on 2019-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2163 joules per kilogram.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.
HodographHodograph, Fort Worth, TX at 12:00Z on 2019-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 302 square meters per square second.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.
Mixed-layer CAPE
2163 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
722 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
302 m²/s²
0-3 km storm-relative helicity
311 m²/s²
Significant tornado parameter
3.0
Supercell composite
16.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 17, 9:20 PM CDTMesoscale DiscussionSPCCrockett, Irion, Reagan, Schleicher, Sutton, Terrell and 1 more85 min
May 17, 11:47 PM CDTMesoscale DiscussionSPCBorden, Brown, Callahan, Coke, Coleman, Concho and 34 more2 hr
May 18, 1:35 AM CDTMesoscale DiscussionSPCArcher, Baylor, Borden, Brown, Callahan, Clay and 33 more2 hr
May 18, 2:20 AM CDTTornado WatchSPCArcher, Baylor, Borden, Brown, Callahan, Childress and 54 more8 hr
May 18, 5:11 AM CDTMesoscale DiscussionSPCArcher, Baylor, Brown, Callahan, Clay, Coke and 34 more2 hr
May 18, 6:51 AM CDTMesoscale DiscussionSPCArcher, Baylor, Brown, Callahan, Clay, Coke and 26 more114 min
May 18, 9:10 AM CDTTornado WatchSPCBosque, Brown, Coleman, Collin, Comanche, Concho and 36 more8 hr
May 18, 12:11 PM CDTMesoscale DiscussionSPCAnderson, Bell, Blanco, Bosque, Bowie, Burnet and 42 more64 min
May 18, 12:48 PM CDTTornado WatchSPCBowie, Camp, Cass, Cherokee, Franklin, Gregg and 9 more7 hr
May 18, 3:48 PM CDTSevere Thunderstorm WatchSPCLipscomb6 hr
May 18, 5:16 PM CDTMesoscale DiscussionSPCAngelina, Grimes, Houston, Jasper, Nacogdoches, Newton and 9 more119 min
May 18, 6:37 PM CDTMesoscale DiscussionSPCCooke, Dallas, Denton, Parker, Tarrant, Wise53 min

Nearby

Tornado Watches in Texas, 2019Every tornado watch in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.