Alert archive / Texas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 178

April 28, 200321 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 28, 2003, 6:20 PM CDT for 21 counties in Texas. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Apr 28, 2003, 6:20 PM CDT (23:20 UTC)
Expired
Apr 28, 2003, 10:00 PM CDT
In force
4 hr
Issued by
the Storm Prediction Center
All 21 counties

Callahan County, TX, Coke County, TX, Concho County, TX, Crockett County, TX, Edwards County, TX, Fisher County, TX, Irion County, TX, Jones County, TX, Kent County, TX, Kimble County, TX, Menard County, TX, Mitchell County, TX, Nolan County, TX, Runnels County, TX, Schleicher County, TX, Scurry County, TX, Shackelford County, TX, Sterling County, TX, Sutton County, TX, Taylor County, TX, Tom Green County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 28, 7:27 PM CDTSevere Thunderstorm WarningSJTFisher, Nolan48 min
Apr 28, 7:39 PM CDTSevere Thunderstorm WarningMAFMitchell, Scurry51 min
Apr 28, 8:06 PM CDTSevere Thunderstorm WarningSJTSterling54 min
Apr 28, 8:15 PM CDTSevere Thunderstorm WarningSJTFisher, Nolan45 min
Apr 28, 8:22 PM CDTSevere Thunderstorm WarningSJTCoke53 min
Apr 28, 8:42 PM CDTSevere Thunderstorm WarningSJTJones, Taylor63 min
Apr 28, 8:53 PM CDTSevere Thunderstorm WarningSJTTom Green52 min
Apr 28, 8:59 PM CDTSevere Thunderstorm WarningSJTRunnels61 min
Apr 28, 9:02 PM CDTSevere Thunderstorm WarningSJTNolan13 min
Apr 28, 9:11 PM CDTSevere Thunderstorm WarningSJTCoke34 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, 11.3 hours before the alert went out and 157 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 2003-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 313 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 2003-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
313 J/kg
Mixed-layer CIN
-307 J/kg
Mixed-layer LCL
1644 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
41 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 28, 2:49 PM CDTMesoscale DiscussionSPCArmstrong, Bailey, Briscoe, Castro, Cochran, Crosby and 16 more116 min
Apr 28, 3:15 PM CDTSevere Thunderstorm WatchSPCAndrews, Armstrong, Bailey, Borden, Briscoe, Castro and 29 more6 hr

Nearby

Severe Thunderstorm Watches in Texas, 2003Every severe thunderstorm watch in 2003

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.