Alert archive / Texas / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 535

July 2, 200410 counties in Oklahoma; 29 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jul 2, 2004, 3:55 PM CDT for 10 counties in Oklahoma; 29 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 2, 2004, 3:55 PM CDT (20:55 UTC)
Expired
Jul 2, 2004, 10:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 39 counties

Beckham County, OK, Caddo County, OK, Comanche County, OK, Cotton County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Tillman County, OK, Washita County, OK, Archer County, TX, Baylor County, TX, Callahan County, TX, Childress County, TX, Clay County, TX, Collingsworth County, TX, Cottle County, TX, Eastland County, TX, Fisher County, TX, Foard County, TX, Hall County, TX, Hardeman County, TX, Haskell County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Mitchell County, TX, Nolan County, TX, Palo Pinto County, TX, Shackelford County, TX, Stephens County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Wheeler County, TX, Wichita County, TX, Wilbarger County, TX, Young 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.9 hours before the alert went out and 269 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, Amarillo Airport, TX at 12:00Z on 2004-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1416 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, Amarillo Airport, TX at 12:00Z on 2004-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 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
1416 J/kg
Mixed-layer CIN
-191 J/kg
Mixed-layer LCL
1357 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 1, 8:01 PM CDTMesoscale DiscussionSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Cleveland and 30 more59 min
Jul 2, 10:08 AM CDTMesoscale DiscussionSPCAdair, Atoka, Bryan, Cherokee, Choctaw, Cleveland and 32 more2 hr
Jul 2, 2:12 PM CDTMesoscale DiscussionSPCCimarron3 hr
Jul 2, 3:29 PM CDTMesoscale DiscussionSPCComanche, Cotton, Harmon, Jackson, Jefferson, Tillman91 min
Jul 2, 4:50 PM CDTSevere Thunderstorm WatchSPCCimarron, Texas5 hr
Jul 2, 5:15 PM CDTMesoscale DiscussionSPCAdair, Cherokee, Craig, Delaware, Haskell, Hughes and 13 more90 min
Jul 2, 6:50 PM CDTSevere Thunderstorm WatchSPCAdair, Atoka, Cherokee, Coal, Craig, Creek and 20 more5 hr

Nearby

Severe Thunderstorm Watches in Texas, 2004Severe Thunderstorm Watches in Oklahoma, 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.