Alert archive / Texas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 1

February 14, 200314 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Feb 14, 2003, 2:40 PM CST for 14 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Feb 14, 2003, 2:40 PM CST (20:40 UTC)
Expired
Feb 14, 2003, 8:00 PM CST
In force
5 hr
Issued by
the Storm Prediction Center

Counties Atascosa County, TX, Bandera County, TX, Dimmit County, TX, Duval County, TX, Frio County, TX, Jim Wells County, TX, Kinney County, TX, La Salle County, TX, McMullen County, TX, Medina County, TX, Real County, TX, Uvalde County, TX, Webb County, TX, Zavala County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Feb 14, 3:11 PM CSTSevere Thunderstorm WarningEWXDimmit, Maverick, Zavala64 min
Feb 14, 4:18 PM CSTSevere Thunderstorm WarningEWXDimmit57 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

Del Rio, TX (KDRT), launched 12:00Z, 8.7 hours before the alert went out and 166 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, Del Rio, TX at 12:00Z on 2003-02-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 705 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, Del Rio, TX at 12:00Z on 2003-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -137 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
705 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
877 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
-137 m²/s²
0-3 km storm-relative helicity
-95 m²/s²
Significant tornado parameter
-0.4
Supercell composite
-2.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 13, 10:54 PM CSTMesoscale DiscussionSPCCoke, Crockett, Glasscock, Howard, Irion, Martin and 5 more2 hr
Feb 14, 1:50 PM CSTMesoscale DiscussionSPCAtascosa, Bandera, Bexar, Dimmit, Frio, Kendall and 9 more3 hr
Feb 14, 3:55 PM CSTMesoscale DiscussionSPCArcher, Bandera, Bell, Blanco, Bosque, Burnet and 20 more2 hr
Feb 14, 4:40 PM CSTSevere Thunderstorm WatchSPCAnderson, Bastrop, Bell, Blanco, Bosque, Bowie and 43 more6 hr
Feb 14, 5:06 PM CSTMesoscale DiscussionSPCAtascosa, Bandera, Dimmit, Duval, Frio, Jim Wells and 8 more114 min
Feb 14, 5:30 PM CSTSevere Thunderstorm WatchSPCAtascosa, Bandera, Bee, Bexar, Caldwell, Comal and 22 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.