Alert archive / Texas / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 41

April 4, 200414 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 4, 2004, 1:10 PM CDT for 14 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 4, 2004, 1:10 PM CDT (18:10 UTC)
Expired
Apr 4, 2004, 7:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Atascosa County, TX, Dimmit County, TX, Duval County, TX, Frio County, TX, Jim Wells County, TX, Karnes County, TX, La Salle County, TX, Live Oak County, TX, McMullen County, TX, Medina County, TX, Uvalde County, TX, Webb County, TX, Wilson County, TX, Zavala County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 4, 1:23 PM CDTSevere Thunderstorm WarningCRPDuval52 min
Apr 4, 1:48 PM CDTFlash Flood WarningCRPDuval, Victoria231 days
Apr 4, 1:58 PM CDTSevere Thunderstorm WarningEWXDimmit, Zavala62 min
Apr 4, 2:08 PM CDTFlash Flood WarningEWXDimmit, Uvalde, Val Verde, Zavala187 days
Apr 4, 2:12 PM CDTTornado WarningEWXDimmit48 min
Apr 4, 2:27 PM CDTSevere Thunderstorm WarningEWXFrio, Medina63 min
Apr 4, 2:34 PM CDTSevere Thunderstorm WarningCRPWebb56 min
Apr 4, 2:42 PM CDTSevere Thunderstorm WarningCRPDuval63 min
Apr 4, 2:57 PM CDTSevere Thunderstorm WarningEWXDimmit63 min
Apr 4, 3:01 PM CDTTornado WarningEWXFrio59 min
Apr 4, 3:06 PM CDTTornado WarningCRPWebb24 min
Apr 4, 3:07 PM CDTSevere Thunderstorm WarningCRPJim Wells53 min
Apr 4, 3:22 PM CDTSevere Thunderstorm WarningEWXDimmit38 min
Apr 4, 3:49 PM CDTFlash Flood WarningEWXComal, Frio, Guadalupe, Medina192 days
Apr 4, 3:51 PM CDTSevere Thunderstorm WarningCRPDuval, Jim Wells54 min
Apr 4, 4:11 PM CDTSevere Thunderstorm WarningCRPLa Salle, Webb64 min
Apr 4, 4:19 PM CDTSevere Thunderstorm WarningEWXFrio56 min
Apr 4, 4:27 PM CDTFlash Flood WarningCRPGoliad, Jim Wells231 days
Apr 4, 4:41 PM CDTFlash Flood WarningEWXAtascosa, Bexar, DeWitt, Fayette, Gonzales, Karnes and 2 more192 days
Apr 4, 4:43 PM CDTSevere Thunderstorm WarningCRPJim Wells62 min
Apr 4, 4:50 PM CDTTornado WarningEWXMedina25 min
Apr 4, 4:51 PM CDTFlash Flood WarningEWXBexar, Comal, Dimmit, Guadalupe, Uvalde, Zavala192 days
Apr 4, 5:02 PM CDTFlash Flood WarningCRPGoliad, La Salle, Webb231 days
Apr 4, 5:05 PM CDTSevere Thunderstorm WarningEWXAtascosa55 min
Apr 4, 5:18 PM CDTSevere Thunderstorm WarningCRPLa Salle57 min
Apr 4, 5:27 PM CDTSevere Thunderstorm WarningCRPWebb63 min
Apr 4, 5:40 PM CDTTornado WarningCRPWebb65 min
Apr 4, 5:53 PM CDTSevere Thunderstorm WarningCRPDuval52 min
Apr 4, 6:05 PM CDTSevere Thunderstorm WarningEWXAtascosa55 min
Apr 4, 6:32 PM CDTSevere Thunderstorm WarningCRPWebb58 min
Apr 4, 6:37 PM CDTFlash Flood WarningCRPVictoria, Webb231 days
Apr 4, 6:45 PM CDTFlash Flood WarningEWXFrio, Medina90 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

Corpus Christi, TX (KCRP), launched 12:00Z, 6.2 hours before the alert went out and 191 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, Corpus Christi, TX at 12:00Z on 2004-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1090 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, Corpus Christi, TX at 12:00Z on 2004-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
1090 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
628 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 4, 4:40 AM CDTMesoscale DiscussionSPCCrane, Crockett, Culberson, Ector, Jeff Davis, Kinney and 8 more3 hr
Apr 4, 11:38 AM CDTMesoscale DiscussionSPCBrooks, Cameron, Dimmit, Duval, Hidalgo, Jim Hogg and 9 more3 hr
Apr 4, 12:41 PM CDTMesoscale DiscussionSPCAtascosa, Bexar, Caldwell, DeWitt, Dimmit, Frio and 7 more3 hr
Apr 4, 1:23 PM CDTMesoscale DiscussionSPCBrewster, Terrell, Val Verde2 hr
Apr 4, 2:10 PM CDTSevere Thunderstorm WatchSPCBrewster, Presidio, Terrell6 hr
Apr 4, 3:30 PM CDTMesoscale DiscussionSPCAtascosa, Duval, Jim Wells, Karnes, La Salle, Live Oak and 3 more2 hr
Apr 4, 5:32 PM CDTMesoscale DiscussionSPCAtascosa, Austin, Bastrop, Bee, Bexar, Burleson and 19 more118 min
Apr 4, 6:40 PM CDTSevere Thunderstorm WatchSPCAransas, Atascosa, Bee, Brooks, Duval, Goliad and 15 more4 hr

Nearby

Severe Thunderstorm Watches in Texas, 2004Every severe thunderstorm watch in 2004

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.