Alert archive / Arkansas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 796

July 22, 200336 counties in Arkansas; 12 counties in Mississippi; Shelby County, Tennessee

The Storm Prediction Center issued this severe thunderstorm watch at Jul 22, 2003, 3:45 AM CDT for 36 counties in Arkansas; 12 counties in Mississippi; Shelby County, Tennessee. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jul 22, 2003, 3:45 AM CDT (08:45 UTC)
Expired
Jul 22, 2003, 9:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 49 counties

Arkansas County, AR, Clark County, AR, Cleburne County, AR, Conway County, AR, Crawford County, AR, Crittenden County, AR, Cross County, AR, Dallas County, AR, Faulkner County, AR, Franklin County, AR, Garland County, AR, Grant County, AR, Hot Spring County, AR, Jackson County, AR, Jefferson County, AR, Johnson County, AR, Lee County, AR, Lincoln County, AR, Logan County, AR, Lonoke County, AR, Monroe County, AR, Montgomery County, AR, Perry County, AR, Phillips County, AR, Poinsett County, AR, Pope County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Scott County, AR, Sebastian County, AR, St. Francis County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Yell County, AR, Calhoun County, MS, Chickasaw County, MS, Coahoma County, MS, DeSoto County, MS, Lafayette County, MS, Marshall County, MS, Panola County, MS, Quitman County, MS, Tallahatchie County, MS, Tate County, MS, Tunica County, MS, Yalobusha County, MS, Shelby County, TN

The radar

The Little Rock radar (KLZK), 83 km from the middle of the area, began a volume at 08:49 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

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

IssuedProductOfficeCountiesLasted
Jul 22, 3:56 AM CDTSevere Thunderstorm WarningLZKJohnson, Pope, Van Buren59 min
Jul 22, 4:29 AM CDTSevere Thunderstorm WarningLZKConway46 min
Jul 22, 4:32 AM CDTSevere Thunderstorm WarningLZKCleburne58 min
Jul 22, 4:43 AM CDTSevere Thunderstorm WarningLZKFaulkner62 min
Jul 22, 4:52 AM CDTSevere Thunderstorm WarningLZKWhite58 min
Jul 22, 5:28 AM CDTSevere Thunderstorm WarningLZKLonoke, Pulaski62 min
Jul 22, 5:36 AM CDTSevere Thunderstorm WarningLZKJackson, Woodruff59 min
Jul 22, 6:07 AM CDTSevere Thunderstorm WarningMEGSt. Francis23 min
Jul 22, 6:15 AM CDTSevere Thunderstorm WarningMEGCrittenden30 min
Jul 22, 6:29 AM CDTSevere Thunderstorm WarningMEGShelby, Tipton46 min
Jul 22, 6:36 AM CDTSevere Thunderstorm WarningMEGDeSoto24 min
Jul 22, 7:02 AM CDTSevere Thunderstorm WarningMEGDeSoto, Marshall43 min
Jul 22, 7:16 AM CDTSevere Thunderstorm WarningMEGShelby14 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

Little Rock, AR (KLZK), launched 00:00Z, 8.8 hours before the alert went out and 129 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, Little Rock, AR at 00:00Z on 2003-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3035 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, Little Rock, AR at 00:00Z on 2003-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 132 square meters per square second.1939Sfc1 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
3035 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
1538 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
132 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.3
Supercell composite
9.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 21, 7:06 PM CDTMesoscale DiscussionSPCCleburne, Craighead, Faulkner, Greene, Independence, Izard and 8 more84 min
Jul 21, 11:39 PM CDTMesoscale DiscussionSPCBenton2 hr
Jul 22, 1:20 AM CDTSevere Thunderstorm WatchSPCBaxter, Benton, Boone, Carroll, Cleburne, Crawford and 10 more7 hr
Jul 22, 2:49 AM CDTMesoscale DiscussionSPCArkansas, Clark, Cleburne, Conway, Crawford, Crittenden and 31 more116 min
Jul 22, 4:47 AM CDTMesoscale DiscussionSPCCross, Lee, Lonoke, Monroe, Phillips, Prairie and 3 more118 min
Jul 22, 6:29 AM CDTMesoscale DiscussionSPCAlcorn, Benton, DeSoto, Marshall, Prentiss, Tippah and 2 more91 min
Jul 22, 6:40 AM CDTSevere Thunderstorm WatchSPCAlcorn, Benton, Itawamba, Lee, Pontotoc, Prentiss and 3 more3 hr
Jul 22, 1:42 PM CDTMesoscale DiscussionSPCAdams, Amite, Claiborne, Copiah, Covington, Forrest and 18 more2 hr
Jul 22, 2:30 PM CDTSevere Thunderstorm WatchSPCAdams, Amite, Claiborne, Clarke, Copiah, Covington and 29 more6 hr
Jul 22, 2:40 PM CDTSevere Thunderstorm WatchSPCGeorge, Greene, Jackson, Wayne5 hr
Jul 22, 6:21 PM CDTMesoscale DiscussionSPCAdams, Amite, Claiborne, Copiah, Covington, Forrest and 24 more54 min

Nearby

Severe Thunderstorm Watches in Arkansas, 2003Severe Thunderstorm Watches in Mississippi, 2003Severe Thunderstorm Watches in Tennessee, 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.