Alert archive / Texas / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 42

April 4, 2004Brewster County, Presidio County, Terrell County, Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 4, 2004, 2:10 PM CDT for Brewster County, Presidio County, Terrell County, Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 4, 2004, 2:10 PM CDT (19:10 UTC)
Expired
Apr 4, 2004, 8:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center

Counties Brewster County, TX, Presidio County, TX, Terrell County, TX

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, 7.2 hours before the alert went out and 243 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 2004-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 100 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 2004-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
100 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
645 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
261 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 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, 1:10 PM CDTSevere Thunderstorm WatchSPCAtascosa, Dimmit, Duval, Frio, Jim Wells, Karnes and 8 more6 hr
Apr 4, 1:23 PM CDTMesoscale DiscussionSPCBrewster, Terrell, Val Verde2 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.