Alert archive / Arkansas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 106

April 6, 200341 counties in Arkansas; 5 counties in Oklahoma; 4 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 6, 2003, 2:55 PM CDT for 41 counties in Arkansas; 5 counties in Oklahoma; 4 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 6, 2003, 2:55 PM CDT (19:55 UTC)
Expired
Apr 6, 2003, 8:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 50 counties

Baxter County, AR, Boone County, AR, Clark County, AR, Cleburne County, AR, Conway County, AR, Crawford County, AR, Dallas County, AR, Faulkner County, AR, Franklin County, AR, Garland County, AR, Grant County, AR, Hempstead County, AR, Hot Spring County, AR, Howard County, AR, Independence County, AR, Izard County, AR, Johnson County, AR, Little River County, AR, Logan County, AR, Madison County, AR, Marion County, AR, Miller County, AR, Montgomery County, AR, Nevada County, AR, Newton County, AR, Ouachita County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, Washington County, AR, Yell County, AR, Choctaw County, OK, LeFlore County, OK, McCurtain County, OK, Pushmataha County, OK, Sequoyah County, OK, Bowie County, TX, Delta County, TX, Lamar County, TX, Red River County, TX

The radar

The Western Arkansas radar (KSRX), 90 km from the middle of the area, began a volume at 19:55 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

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

IssuedProductOfficeCountiesLasted
Apr 6, 3:12 PM CDTSevere Thunderstorm WarningTSAPushmataha48 min
Apr 6, 3:14 PM CDTSevere Thunderstorm WarningTSASebastian61 min
Apr 6, 3:17 PM CDTSevere Thunderstorm WarningTSALeFlore28 min
Apr 6, 3:21 PM CDTTornado WarningTSAPushmataha24 min
Apr 6, 3:28 PM CDTSevere Thunderstorm WarningLZKScott32 min
Apr 6, 3:32 PM CDTSevere Thunderstorm WarningTSAFranklin43 min
Apr 6, 3:45 PM CDTSevere Thunderstorm WarningSHVMcCurtain60 min
Apr 6, 3:49 PM CDTSevere Thunderstorm WarningTSALeFlore41 min
Apr 6, 3:51 PM CDTSevere Thunderstorm WarningFWDLamar39 min
Apr 6, 3:59 PM CDTSevere Thunderstorm WarningLZKConway, Van Buren31 min
Apr 6, 4:01 PM CDTSevere Thunderstorm WarningLZKConway, Van Buren29 min
Apr 6, 4:12 PM CDTSevere Thunderstorm WarningLZKLogan28 min
Apr 6, 4:22 PM CDTSevere Thunderstorm WarningLZKPolk28 min
Apr 6, 4:34 PM CDTSevere Thunderstorm WarningLZKJohnson31 min
Apr 6, 4:48 PM CDTSevere Thunderstorm WarningLZKMontgomery, Polk47 min
Apr 6, 4:54 PM CDTSevere Thunderstorm WarningLZKNewton, Pope, Searcy51 min
Apr 6, 5:35 PM CDTSevere Thunderstorm WarningLZKGarland, Perry35 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

Shreveport, LA (KSHV), launched 12:00Z, 7.9 hours before the alert went out and 228 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, Shreveport, LA at 12:00Z on 2003-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1292 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, Shreveport, LA at 12:00Z on 2003-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 259 square meters per square second.1939587897117Sfc1 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
1292 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
492 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
259 m²/s²
0-3 km storm-relative helicity
405 m²/s²
Significant tornado parameter
2.5
Supercell composite
20.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 6, 7:38 AM CDTMesoscale DiscussionSPCAshley, Bradley, Calhoun, Chicot, Columbia, Lafayette and 3 more97 min
Apr 6, 7:50 AM CDTSevere Thunderstorm WatchSPCAshley, Bradley, Calhoun, Chicot, Columbia, Drew and 6 more5 hr
Apr 6, 8:56 AM CDTMesoscale DiscussionSPCBaxter, Benton, Boone, Carroll, Cleburne, Conway and 21 more2 hr
Apr 6, 9:45 AM CDTSevere Thunderstorm WatchSPCBaxter, Benton, Boone, Carroll, Conway, Crawford and 22 more5 hr
Apr 6, 10:00 AM CDTMesoscale DiscussionSPCArkansas, Ashley, Chicot, Desha, Drew, Jefferson and 4 more2 hr
Apr 6, 10:20 AM CDTMesoscale DiscussionSPCArkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 21 more55 min
Apr 6, 10:30 AM CDTTornado WatchSPCAshley, Bradley, Calhoun, Chicot, Columbia, Drew and 6 more6 hr
Apr 6, 11:05 AM CDTSevere Thunderstorm WatchSPCArkansas, Baxter, Cleburne, Cleveland, Craighead, Crittenden and 27 more5 hr
Apr 6, 12:27 PM CDTMesoscale DiscussionSPCArkansas, Clark, Cleburne, Cleveland, Conway, Craighead and 46 more2 hr
Apr 6, 2:18 PM CDTMesoscale DiscussionSPCBoone, Conway, Crawford, Franklin, Garland, Howard and 16 more57 min
Apr 6, 3:45 PM CDTTornado WatchSPCAshley, Chicot, Union5 hr
Apr 6, 5:35 PM CDTMesoscale DiscussionSPCAshley, Chicot, Union115 min
Apr 6, 6:23 PM CDTMesoscale DiscussionSPCAshley, Chicot, Union97 min
Apr 5, 6:35 PM CSTMesoscale DiscussionSPCLove115 min
Apr 5, 6:40 PM CSTTornado WatchSPCJackson5 hr
Apr 5, 6:55 PM CSTMesoscale DiscussionSPCBlaine, Caddo, Canadian, Carter, Cleveland, Comanche and 14 more95 min
Apr 5, 7:10 PM CSTSevere Thunderstorm WatchSPCBeckham, Blaine, Caddo, Canadian, Carter, Cleveland and 25 more5 hr
Apr 5, 8:04 PM CSTMesoscale DiscussionSPCLove116 min
Apr 5, 9:35 PM CSTTornado WatchSPCLove5 hr
Apr 5, 11:10 PM CSTMesoscale DiscussionSPCAdair, Alfalfa, Atoka, Beckham, Blaine, Bryan and 54 more65 min
Apr 5, 11:35 PM CSTSevere Thunderstorm WatchSPCAtoka, Beckham, Blaine, Caddo, Canadian, Carter and 51 more5 hr
Apr 6, 5:09 AM CDTMesoscale DiscussionSPCAlfalfa, Atoka, Beckham, Blaine, Caddo, Canadian and 47 more96 min
Apr 6, 5:35 AM CDTSevere Thunderstorm WatchSPCAtoka, Bryan, Caddo, Canadian, Carter, Cherokee and 46 more4 hr
Apr 6, 7:45 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Canadian, Carter, Cherokee, Choctaw and 44 more2 hr
Apr 5, 6:11 PM CSTMesoscale DiscussionSPCBaylor, Briscoe, Cottle, Crosby, Dickens, Floyd and 9 more64 min
Apr 5, 9:20 PM CSTMesoscale DiscussionSPCArcher, Camp, Clay, Collin, Cooke, Dallas and 31 more55 min
Apr 5, 10:26 PM CSTMesoscale DiscussionSPCBaylor, Childress, Cottle, Dickens, Fisher, Foard and 11 more64 min
Apr 5, 11:43 PM CSTMesoscale DiscussionSPCArcher, Camp, Clay, Collin, Cooke, Dallas and 31 more92 min
Apr 6, 3:13 AM CDTMesoscale DiscussionSPCArcher, Baylor, Camp, Cass, Cherokee, Clay and 39 more107 min
Apr 6, 3:39 AM CDTMesoscale DiscussionSPCArcher, Baylor, Camp, Cass, Cherokee, Clay and 39 more66 min
Apr 6, 4:50 AM CDTMesoscale DiscussionSPCArcher, Baylor, Brown, Callahan, Coke, Coleman and 27 more115 min
Apr 6, 9:12 AM CDTMesoscale DiscussionSPCAnderson, Bosque, Camp, Cass, Cherokee, Collin and 41 more2 hr
Apr 6, 12:03 PM CDTMesoscale DiscussionSPCGregg, Harrison, Marion, Panola, Rusk117 min
Apr 6, 12:40 PM CDTTornado WatchSPCAnderson, Brazos, Burleson, Cherokee, Collin, Cooke and 33 more5 hr
Apr 6, 3:00 PM CDTMesoscale DiscussionSPCAnderson, Brazos, Cherokee, Delta, Freestone, Grimes and 21 more90 min
Apr 6, 3:26 PM CDTMesoscale DiscussionSPCAngelina, Nacogdoches, Sabine, San Augustine, Shelby2 hr

Nearby

Severe Thunderstorm Watches in Arkansas, 2003Severe 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.