Alert archive / Texas / Severe Thunderstorm Watches in 2019

Severe Thunderstorm Watch 397

June 18, 201938 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jun 18, 2019, 5:36 PM CDT for 38 counties in Texas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 18, 2019, 5:36 PM CDT (22:36 UTC)
Expired
Jun 19, 2019, 1:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
3 in
Strongest gust expected
65 kt
All 38 counties

Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hemphill County, TX, Hockley County, TX, Kent County, TX, King County, TX, Lamb County, TX, Lipscomb County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Stonewall County, TX, Swisher County, TX, Terry County, TX, Wheeler County, TX, Yoakum County, TX

The radar

The Lubbock radar (KLBB), 59 km from the middle of the area, began a volume at 22:38 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
20%
One or more EF2 to EF5 tornadoes
5%
Ten or more severe wind reports
50%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
60%
One or more hailstones of 2 inches or more
60%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 18, 5:50 PM CDTSevere Thunderstorm WarningAMADeaf Smith, Oldham, Potter, Randall55 min
Jun 18, 6:29 PM CDTSevere Thunderstorm WarningLUBBailey, Castro, Lamb, Parmer61 min
Jun 18, 6:50 PM CDTSevere Thunderstorm WarningAMARandall55 min
Jun 18, 7:36 PM CDTSevere Thunderstorm WarningLUBHale, Hockley, Lamb, Lubbock54 min
Jun 18, 7:41 PM CDTSevere Thunderstorm WarningAMAArmstrong, Randall49 min
Jun 18, 7:46 PM CDTSevere Thunderstorm WarningAMARoberts59 min
Jun 18, 7:59 PM CDTSevere Thunderstorm WarningAMACarson, Gray, Roberts61 min
Jun 18, 8:05 PM CDTTornado WarningAMACarson, Hutchinson, Roberts40 min
Jun 18, 8:12 PM CDTSevere Thunderstorm WarningLUBCrosby, Floyd, Hale, Lubbock63 min
Jun 18, 8:18 PM CDTTornado Warning Tornado observedAMACarson, Gray27 min
Jun 18, 8:29 PM CDTSevere Thunderstorm WarningLUBCrosby, Hockley, Lubbock61 min
Jun 18, 8:42 PM CDTSevere Thunderstorm WarningAMACarson, Gray, Hutchinson, Roberts48 min
Jun 18, 8:44 PM CDTSevere Thunderstorm WarningAMAGray, Wheeler61 min
Jun 18, 8:56 PM CDTTornado WarningAMAGray34 min
Jun 18, 9:12 PM CDTSevere Thunderstorm WarningLUBCrosby, Dickens, Garza, Kent, Lubbock63 min
Jun 18, 9:30 PM CDTSevere Thunderstorm WarningLUBCrosby, Garza, Lubbock, Lynn60 min
Jun 18, 9:30 PM CDTSevere Thunderstorm WarningLUBCottle, Dickens, King, Motley45 min
Jun 18, 9:40 PM CDTSevere Thunderstorm WarningAMACollingsworth, Donley, Gray, Wheeler65 min
Jun 18, 10:01 PM CDTSevere Thunderstorm WarningLUBDickens, Garza, Kent, King, Stonewall38 min
Jun 18, 10:05 PM CDTSevere Thunderstorm WarningLUBCottle, King40 min
Jun 18, 10:15 PM CDTSevere Thunderstorm WarningAMACollingsworth, Donley, Gray, Wheeler60 min
Jun 18, 10:25 PM CDTTornado WarningAMACollingsworth50 min
Jun 18, 10:55 PM CDTSevere Thunderstorm WarningAMACollingsworth50 min
Jun 18, 11:40 PM CDTSevere Thunderstorm WarningAMACollingsworth50 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 12:00Z, 10.6 hours before the alert went out and 249 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 12:00Z on 2019-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 888 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 12:00Z on 2019-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 square meters per square second.193958Sfc1 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
888 J/kg
Mixed-layer CIN
-202 J/kg
Mixed-layer LCL
1006 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
315 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.9

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 17, 9:15 PM CDTMesoscale DiscussionSPCAndrews, Bailey, Borden, Castro, Cochran, Dawson and 22 more90 min
Jun 17, 10:01 PM CDTSevere Thunderstorm WatchSPCAndrews, Bailey, Borden, Cochran, Crosby, Dawson and 13 more5 hr
Jun 17, 11:57 PM CDTMesoscale DiscussionSPCAndrews, Bailey, Borden, Cochran, Crosby, Dawson and 16 more93 min
Jun 18, 2:08 AM CDTMesoscale DiscussionSPCBorden, Dawson, Fisher, Gaines, Scurry, Stonewall and 1 more67 min
Jun 18, 1:25 PM CDTMesoscale DiscussionSPCAndrews, Bailey, Brewster, Castro, Cochran, Crane and 22 more3 hr
Jun 18, 2:20 PM CDTMesoscale DiscussionSPCBaylor, Borden, Coke, Cottle, Crosby, Dickens and 20 more115 min
Jun 18, 2:22 PM CDTMesoscale DiscussionSPCDallam, Hansford, Sherman83 min
Jun 18, 3:37 PM CDTSevere Thunderstorm WatchSPCDallam, Hansford, Hartley, Hutchinson, Moore, Sherman7 hr
Jun 18, 4:48 PM CDTMesoscale DiscussionSPCArmstrong, Briscoe, Carson, Castro, Childress, Collingsworth and 21 more57 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.