Alert archive / Texas / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 148

April 10, 200545 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 10, 2005, 10:45 PM CDT for 45 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 10, 2005, 10:45 PM CDT (03:45 UTC)
Expired
Apr 11, 2005, 5:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 45 counties

Anderson County, TX, Bastrop County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Cherokee County, TX, Comal County, TX, DeWitt County, TX, Ellis County, TX, Falls County, TX, Fayette County, TX, Freestone County, TX, Gonzales County, TX, Gregg County, TX, Grimes County, TX, Guadalupe County, TX, Harrison County, TX, Hays County, TX, Henderson County, TX, Hill County, TX, Houston County, TX, Kaufman County, TX, Kendall County, TX, Lavaca County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Madison County, TX, McLennan County, TX, Medina County, TX, Milam County, TX, Navarro County, TX, Robertson County, TX, Rusk County, TX, Smith County, TX, Travis County, TX, Upshur County, TX, Van Zandt County, TX, Washington County, TX, Williamson County, TX, Wilson County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 10, 11:29 PM CDTSevere Thunderstorm WarningEWXKendall46 min
Apr 10, 11:39 PM CDTSevere Thunderstorm WarningEWXBlanco54 min
Apr 11, 12:13 AM CDTSevere Thunderstorm WarningEWXComal, Hays, Travis62 min
Apr 11, 12:51 AM CDTSevere Thunderstorm WarningEWXBexar, Medina57 min
Apr 11, 1:14 AM CDTSevere Thunderstorm WarningEWXTravis61 min
Apr 11, 1:14 AM CDTSevere Thunderstorm WarningEWXWilliamson61 min
Apr 11, 1:42 AM CDTSevere Thunderstorm WarningEWXComal63 min
Apr 11, 3:46 AM CDTSevere Thunderstorm WarningHGXGrimes, Waller44 min
Apr 11, 4:25 AM CDTSevere Thunderstorm WarningHGXGrimes, Montgomery50 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

Fort Worth, TX (KFWD), launched 00:00Z, 3.8 hours before the alert went out and 258 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, Fort Worth, TX at 00:00Z on 2005-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 942 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, Fort Worth, TX at 00:00Z on 2005-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 112 square meters per square second.1939587897Sfc1 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
942 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
808 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 10, 7:39 PM CDTMesoscale DiscussionSPCBandera, Bastrop, Bell, Bexar, Blanco, Bosque and 45 more96 min
Apr 11, 3:12 AM CDTMesoscale DiscussionSPCAngelina, Bowie, Camp, Cass, Cherokee, Gregg and 27 more63 min
Apr 11, 3:45 AM CDTSevere Thunderstorm WatchSPCAngelina, Bowie, Cass, Chambers, Cherokee, Fort Bend and 26 more7 hr
Apr 11, 6:53 AM CDTMesoscale DiscussionSPCAngelina, Bowie, Cass, Chambers, Cherokee, Fort Bend and 26 more67 min
Apr 11, 9:41 AM CDTMesoscale DiscussionSPCChambers, Galveston, Hardin, Jasper, Jefferson, Newton and 2 more2 hr
Apr 11, 10:15 AM CDTTornado WatchSPCBrazoria, Chambers, Galveston, Hardin, Harris, Jasper and 6 more9 hr
Apr 11, 12:12 PM CDTMesoscale DiscussionSPCChambers, Galveston, Hardin, Jasper, Jefferson, Newton and 2 more2 hr

Nearby

Severe Thunderstorm Watches in Texas, 2005Every severe thunderstorm watch in 2005

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.