Alert archive / Texas / Severe Thunderstorm Watches in 2014

Severe Thunderstorm Watch 526

October 10, 201421 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Oct 10, 2014, 5:01 PM CDT for 21 counties in Texas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Oct 10, 2014, 5:01 PM CDT (22:01 UTC)
Expired
Oct 11, 2014, 12:00 AM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 21 counties

Brown County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Concho 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, Reagan County, TX, Runnels County, TX, Shackelford County, TX, Sterling County, TX, Taylor County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 88 km from the middle of the area, began a volume at 22:05 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
2%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
60%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Oct 10, 5:08 PM CDTSevere Thunderstorm WarningSJTCoke, Sterling37 min
Oct 10, 5:27 PM CDTSevere Thunderstorm WarningMAFGlasscock, Howard, Martin, Midland63 min
Oct 10, 5:42 PM CDTSevere Thunderstorm WarningSJTCoke48 min
Oct 10, 6:01 PM CDTSevere Thunderstorm WarningMAFMitchell30 min
Oct 10, 6:04 PM CDTSevere Thunderstorm WarningSJTNolan34 min
Oct 10, 6:10 PM CDTSevere Thunderstorm WarningSJTFisher30 min
Oct 10, 6:25 PM CDTSevere Thunderstorm WarningSJTCoke, Nolan, Runnels, Taylor50 min
Oct 10, 6:28 PM CDTSevere Thunderstorm WarningSJTFisher47 min
Oct 10, 6:48 PM CDTSevere Thunderstorm WarningSJTCoke, Nolan42 min
Oct 10, 6:51 PM CDTSevere Thunderstorm WarningMAFMitchell35 min
Oct 10, 7:04 PM CDTSevere Thunderstorm WarningSJTColeman, Runnels, Taylor26 min
Oct 10, 7:17 PM CDTSevere Thunderstorm WarningSJTCoke, Runnels, Taylor28 min
Oct 10, 7:30 PM CDTSevere Thunderstorm WarningSJTCallahan, Coleman, Runnels, Taylor30 min
Oct 10, 7:43 PM CDTSevere Thunderstorm WarningSJTRunnels, Taylor32 min
Oct 10, 7:59 PM CDTSevere Thunderstorm WarningSJTBrown, Callahan, Coleman31 min
Oct 10, 8:28 PM CDTSevere Thunderstorm WarningSJTBrown, Coleman47 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, 10.0 hours before the alert went out and 142 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 2014-10-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1087 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 2014-10-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 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
1087 J/kg
Mixed-layer CIN
-166 J/kg
Mixed-layer LCL
1197 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 9, 7:26 PM CDTMesoscale DiscussionSPCArmstrong, Carson, Collingsworth, Dallam, Deaf Smith, Donley and 14 more94 min
Oct 9, 10:34 PM CDTMesoscale DiscussionSPCCarson, Collingsworth, Gray, Hansford, Hemphill, Hutchinson and 7 more86 min
Oct 10, 2:26 PM CDTMesoscale DiscussionSPCArcher, Callahan, Clay, Collin, Cooke, Delta and 19 more94 min
Oct 10, 3:22 PM CDTSevere Thunderstorm WatchSPCArcher, Bosque, Clay, Collin, Comanche, Cooke and 25 more7 hr
Oct 10, 3:36 PM CDTMesoscale DiscussionSPCBrown, Callahan, Coke, Coleman, Concho, Irion and 10 more84 min

Nearby

Severe Thunderstorm Watches in Texas, 2014Every severe thunderstorm watch in 2014

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.