Alert archive / Texas / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 497

June 18, 2004Beaver County, Cimarron County, Texas County, Oklahoma; 38 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jun 18, 2004, 3:30 PM CDT for Beaver County, Cimarron County, Texas County, Oklahoma; 38 counties in Texas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 18, 2004, 3:30 PM CDT (20:30 UTC)
Expired
Jun 18, 2004, 10:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
All 41 counties

Beaver County, OK, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dallam County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hockley County, TX, Hutchinson County, TX, King County, TX, Lamb County, TX, Lipscomb County, TX, Lubbock County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Wheeler County, TX

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 18, 7:35 PM CDTSevere Thunderstorm WarningAMACarson, Hutchinson55 min
Jun 18, 7:39 PM CDTSevere Thunderstorm WarningLUBBailey66 min
Jun 18, 7:54 PM CDTSevere Thunderstorm WarningLUBCochran66 min
Jun 18, 7:55 PM CDTSevere Thunderstorm WarningAMALipscomb35 min
Jun 18, 8:01 PM CDTSevere Thunderstorm WarningLUBLamb59 min
Jun 18, 8:09 PM CDTSevere Thunderstorm WarningAMAHartley66 min
Jun 18, 9:00 PM CDTSevere Thunderstorm WarningLUBLamb45 min
Jun 18, 9:04 PM CDTSevere Thunderstorm WarningLUBCastro56 min
Jun 18, 9:19 PM CDTSevere Thunderstorm WarningAMAMoore41 min
Jun 18, 9:24 PM CDTSevere Thunderstorm WarningAMATexas66 min
Jun 18, 9:34 PM CDTSevere Thunderstorm WarningLUBHockley41 min
Jun 18, 9:50 PM CDTSevere Thunderstorm WarningAMAHansford55 min
Jun 18, 9:57 PM CDTSevere Thunderstorm WarningAMAMoore48 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 8.5 hours before the alert went out and 46 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 2004-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 199 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 2004-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 254 square meters per square second.19395878Sfc1 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
199 J/kg
Mixed-layer CIN
-341 J/kg
Mixed-layer LCL
1217 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
254 m²/s²
0-3 km storm-relative helicity
410 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 17, 7:38 PM CDTMesoscale DiscussionSPCBeaver, Cimarron, Texas2 hr
Jun 17, 9:19 PM CDTMesoscale DiscussionSPCAlfalfa, Beaver, Beckham, Blaine, Caddo, Comanche and 15 more26 min
Jun 17, 9:40 PM CDTSevere Thunderstorm WatchSPCBeaver, Beckham, Blaine, Custer, Dewey, Ellis and 9 more5 hr
Jun 17, 11:44 PM CDTMesoscale DiscussionSPCAlfalfa, Blaine, Canadian, Custer, Dewey, Garfield and 10 more91 min
Jun 17, 11:50 PM CDTSevere Thunderstorm WatchSPCAlfalfa, Blaine, Garfield, Grant, Kay, Kingfisher and 5 more4 hr
Jun 18, 1:29 AM CDTMesoscale DiscussionSPCAlfalfa, Blaine, Craig, Creek, Garfield, Grant and 16 more91 min
Jun 18, 10:49 AM CDTMesoscale DiscussionSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 23 more116 min
Jun 18, 3:51 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Caddo, Carter, Choctaw, Cleveland and 26 more114 min
Jun 18, 2:28 PM CDTMesoscale DiscussionSPCArmstrong, Bailey, Briscoe, Castro, Cochran, Crosby and 13 more2 hr
Jun 18, 6:01 PM CDTMesoscale DiscussionSPCCulberson, Jeff Davis, Loving, Presidio, Reeves, Ward and 1 more59 min

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.