Alert archive / Texas / Severe Thunderstorm Watches in 2019

Severe Thunderstorm Watch 48

April 13, 201927 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 13, 2019, 1:32 AM CDT for 27 counties in Texas. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Apr 13, 2019, 1:32 AM CDT (06:32 UTC)
Expired
Apr 13, 2019, 9:59 AM CDT
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 27 counties

Brown County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Concho County, TX, Crane County, TX, Ector County, TX, Fisher County, TX, Glasscock County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Martin County, TX, McCulloch County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Pecos County, TX, Reagan County, TX, Runnels County, TX, San Saba County, TX, Shackelford County, TX, Sterling County, TX, Taylor County, TX, Terrell County, TX, Tom Green County, TX, Upton County, TX

The radar

The Midland/Odessa radar (KMAF), 86 km from the middle of the area, began a volume at 06:33 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
10%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
40%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 13, 2:46 AM CDTSevere Thunderstorm WarningSJTCrockett, Irion44 min
Apr 13, 2:48 AM CDTSevere Thunderstorm WarningMAFReagan57 min
Apr 13, 3:44 AM CDTSevere Thunderstorm WarningSJTIrion46 min
Apr 13, 3:59 AM CDTFlash Flood WarningMAFReagan3 hr
Apr 13, 4:27 AM CDTSevere Thunderstorm WarningSJTIrion, Sterling, Tom Green33 min
Apr 13, 5:22 AM CDTSevere Thunderstorm WarningSJTCrockett, Irion, Schleicher, Sterling, Tom Green38 min
Apr 13, 5:54 AM CDTSevere Thunderstorm WarningSJTCoke, Irion, Schleicher, Tom Green36 min
Apr 13, 6:24 AM CDTTornado WarningSJTConcho, Tom Green36 min
Apr 13, 6:29 AM CDTSevere Thunderstorm WarningSJTConcho, Menard, Schleicher, Tom Green46 min
Apr 13, 6:56 AM CDTSevere Thunderstorm WarningSJTConcho, Runnels, Tom Green49 min
Apr 13, 7:13 AM CDTSevere Thunderstorm WarningSJTConcho, Menard, Schleicher, Tom Green47 min
Apr 13, 7:32 AM CDTTornado WarningSJTConcho, Menard18 min
Apr 13, 7:33 AM CDTSevere Thunderstorm WarningSJTColeman, Concho, McCulloch, Runnels42 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

Midland Regional, TX (KMAF), launched 00:00Z, 6.5 hours before the alert went out and 87 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, Midland Regional, TX at 00:00Z on 2019-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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, Midland Regional, TX at 00:00Z on 2019-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.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.
Mixed-layer CAPE
4 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
3570 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 10:14 PM CDTMesoscale DiscussionSPCChambers, Hardin, Harris, Jasper, Liberty, Montgomery and 5 more3 hr
Apr 12, 11:40 PM CDTMesoscale DiscussionSPCCoke, Crane, Crockett, Ector, Glasscock, Howard and 13 more2 hr
Apr 13, 12:56 AM CDTMesoscale DiscussionSPCBandera, Crockett, Edwards, Kerr, Kimble, Kinney and 7 more2 hr
Apr 13, 1:50 AM CDTTornado WatchSPCBandera, Crockett, Edwards, Frio, Gillespie, Kendall and 13 more8 hr
Apr 13, 1:52 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Camp, Cass, Cherokee, Franklin and 25 more113 min
Apr 13, 4:35 AM CDTMesoscale DiscussionSPCBosque, Brown, Callahan, Coke, Coleman, Comanche and 26 more55 min
Apr 13, 4:50 AM CDTMesoscale DiscussionSPCBandera, Crockett, Edwards, Frio, Gillespie, Kendall and 13 more55 min
Apr 13, 6:48 AM CDTMesoscale DiscussionSPCBell, Bosque, Brown, Callahan, Coleman, Comanche and 27 more57 min
Apr 13, 7:11 AM CDTMesoscale DiscussionSPCBandera, Bastrop, Bell, Bexar, Blanco, Burleson and 28 more2 hr
Apr 13, 7:55 AM CDTSevere Thunderstorm WatchSPCAnderson, Bell, Bosque, Comanche, Coryell, Dallas and 27 more6 hr
Apr 13, 8:38 AM CDTSevere Thunderstorm WatchSPCAtascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 22 more5 hr
Apr 13, 9:40 AM CDTMesoscale DiscussionSPCBastrop, Bell, Bexar, Blanco, Brazos, Burleson and 19 more95 min
Apr 13, 9:49 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Cherokee, Freestone, Gregg, Harrison and 12 more56 min
Apr 13, 10:01 AM CDTSevere Thunderstorm WatchSPCAngelina, Austin, Brazos, Burleson, Camp, Cass and 21 more5 hr
Apr 13, 11:11 AM CDTMesoscale DiscussionSPCBrazos, Grimes, Hardin, Harris, Jasper, Liberty and 10 more34 min
Apr 13, 11:26 AM CDTTornado WatchSPCAngelina, Brazos, Cherokee, Grimes, Hardin, Harrison and 18 more8 hr
Apr 13, 11:52 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Brazos, Cherokee, Freestone, Grimes and 12 more83 min
Apr 13, 1:38 PM CDTMesoscale DiscussionSPCAngelina, Jasper, Nacogdoches, Newton, Sabine, San Augustine and 1 more97 min
Apr 13, 3:39 PM CDTMesoscale DiscussionSPCJefferson, Orange96 min

Nearby

Severe Thunderstorm Watches in Texas, 2019Every severe thunderstorm 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.