Alert archive / Oklahoma / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 152

April 23, 200326 counties in Oklahoma; 26 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 23, 2003, 9:35 PM CDT for 26 counties in Oklahoma; 26 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 23, 2003, 9:35 PM CDT (02:35 UTC)
Expired
Apr 24, 2003, 3:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 52 counties

Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Cleveland County, OK, Coal County, OK, Garvin County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, Lincoln County, OK, Love County, OK, Marshall County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Seminole County, OK, Sequoyah County, OK, Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Fannin County, TX, Grayson County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Montague County, TX, Navarro County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Somervell County, TX, Tarrant County, TX, Van Zandt County, TX, Wise County, TX, Wood County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 119 km from the middle of the area, began a volume at 02:38 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 23, 9:49 PM CDTSevere Thunderstorm WarningFWDEllis, Henderson, Kaufman, Navarro56 min
Apr 23, 9:55 PM CDTSevere Thunderstorm WarningFWDDallas35 min
Apr 23, 9:56 PM CDTSevere Thunderstorm WarningOUNCoal34 min
Apr 23, 9:59 PM CDTSevere Thunderstorm WarningOUNHughes46 min
Apr 23, 10:03 PM CDTSevere Thunderstorm WarningOUNPontotoc32 min
Apr 23, 10:16 PM CDTSevere Thunderstorm WarningFWDVan Zandt60 min
Apr 23, 10:19 PM CDTSevere Thunderstorm WarningTSAPittsburg41 min
Apr 23, 10:32 PM CDTSevere Thunderstorm WarningOUNCoal28 min
Apr 23, 10:51 PM CDTSevere Thunderstorm WarningTSAMcIntosh39 min
Apr 23, 10:58 PM CDTSevere Thunderstorm WarningTSAHaskell, Latimer, Pittsburg47 min
Apr 23, 11:19 PM CDTSevere Thunderstorm WarningTSACherokee, Muskogee, Sequoyah41 min
Apr 23, 11:22 PM CDTSevere Thunderstorm WarningSHVSmith, Wood53 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, 2.6 hours before the alert went out and 93 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 2003-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1767 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 2003-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 382 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
1767 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
673 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
382 m²/s²
0-3 km storm-relative helicity
447 m²/s²
Significant tornado parameter
3.4
Supercell composite
8.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 23, 7:03 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Jefferson, Johnston, Love and 2 more117 min
Apr 23, 8:43 PM CDTMesoscale DiscussionSPCComanche, Cotton, Stephens, Tillman77 min
Apr 23, 11:43 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Haskell, Latimer, LeFlore and 6 more2 hr
Apr 24, 1:11 AM CDTMesoscale DiscussionSPCAlfalfa, Blaine, Garfield, Grant, Kingfisher, Major2 hr
Apr 23, 7:00 PM CDTMesoscale DiscussionSPCCrockett, Edwards, Kimble, Kinney, Mason, Menard and 5 more90 min
Apr 23, 7:45 PM CDTTornado WatchSPCBandera, Bexar, Blanco, Burnet, Caldwell, Comal and 11 more4 hr
Apr 24, 2:41 AM CDTMesoscale DiscussionSPCAnderson, Bell, Cass, Cherokee, Falls, Freestone and 12 more2 hr
Apr 24, 6:30 AM CDTSevere Thunderstorm WatchSPCAngelina, Hardin, Jasper, Newton, Sabine, San Augustine and 2 more5 hr
Apr 24, 6:40 AM CDTSevere Thunderstorm WatchSPCAngelina, Hardin, Jasper, Newton, Sabine, San Augustine and 2 more4 hr
Apr 24, 7:14 AM CDTMesoscale DiscussionSPCAustin, Bastrop, Brazoria, Brazos, Burleson, Caldwell and 22 more2 hr
Apr 24, 7:30 AM CDTTornado WatchSPCAngelina, Austin, Brazoria, Brazos, Burleson, Chambers and 17 more6 hr
Apr 24, 9:11 AM CDTMesoscale DiscussionSPCFort Bend, Harris, Liberty, Montgomery, Polk, San Jacinto2 hr
Apr 24, 11:40 AM CDTMesoscale DiscussionSPCSabine, San Augustine, Shelby65 min

Nearby

Severe Thunderstorm Watches in Oklahoma, 2003Severe Thunderstorm Watches in Texas, 2003Every severe thunderstorm watch in 2003

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; radar from the NEXRAD Level II archive.