Alert archive / Arkansas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 763

July 19, 200324 counties in Arkansas; 22 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Jul 19, 2003, 1:40 AM CDT for 24 counties in Arkansas; 22 counties in Missouri. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jul 19, 2003, 1:40 AM CDT (06:40 UTC)
Expired
Jul 19, 2003, 7:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 46 counties

Baxter County, AR, Boone County, AR, Cleburne County, AR, Conway County, AR, Faulkner County, AR, Fulton County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Lawrence County, AR, Lee County, AR, Lonoke County, AR, Marion County, AR, Monroe County, AR, Prairie County, AR, Pulaski County, AR, Saline County, AR, Searcy County, AR, Sharp County, AR, St. Francis County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Camden County, MO, Christian County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Laclede County, MO, Maries County, MO, Miller County, MO, Oregon County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Shannon County, MO, St. Clair County, MO, Taney County, MO, Texas County, MO, Webster County, MO, Wright County, MO

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 19, 1:40 AM CDTSevere Thunderstorm WarningLZKSharp30 min
Jul 19, 2:19 AM CDTFlash Flood WarningSGFTexas4 hr
Jul 19, 2:55 AM CDTSevere Thunderstorm WarningLZKIzard30 min
Jul 19, 3:31 AM CDTSevere Thunderstorm WarningLZKCleburne24 min
Jul 19, 3:44 AM CDTSevere Thunderstorm WarningLZKFulton21 min
Jul 19, 3:47 AM CDTFlash Flood WarningSGFHowell3 hr
Jul 19, 3:56 AM CDTSevere Thunderstorm WarningSGFHowell, Ozark34 min
Jul 19, 4:55 AM CDTSevere Thunderstorm WarningLZKLonoke35 min
Jul 19, 4:58 AM CDTFlash Flood WarningSGFOregon3 hr
Jul 19, 6:28 AM CDTFlash Flood WarningSGFShannon, Texas4 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.7 hours before the alert went out and 154 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, Springfield, MO at 00:00Z on 2003-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2598 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, Springfield, MO at 00:00Z on 2003-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
2598 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1646 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
168 m²/s²
Significant tornado parameter
0.5
Supercell composite
13.9

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 18, 7:08 PM CDTMesoscale DiscussionSPCBaxter, Boone, Carroll, Fulton, Marion97 min
Jul 18, 7:55 PM CDTSevere Thunderstorm WatchSPCBaxter, Clay, Cleburne, Craighead, Crittenden, Cross and 16 more6 hr
Jul 18, 11:13 PM CDTMesoscale DiscussionSPCBaxter, Clay, Cleburne, Craighead, Crittenden, Cross and 16 more92 min
Jul 19, 1:27 AM CDTMesoscale DiscussionSPCBaxter, Boone, Cleburne, Conway, Faulkner, Fulton and 13 more63 min
Jul 19, 3:36 AM CDTMesoscale DiscussionSPCArkansas, Faulkner, Grant, Jefferson, Lincoln, Lonoke and 4 more84 min
Jul 19, 5:41 AM CDTMesoscale DiscussionSPCArkansas, Cleburne, Conway, Faulkner, Fulton, Independence and 16 more94 min
Jul 18, 7:34 PM CDTMesoscale DiscussionSPCAudrain, Bollinger, Butler, Callaway, Cape Girardeau, Carter and 26 more56 min

Nearby

Severe Thunderstorm Watches in Arkansas, 2003Severe Thunderstorm Watches in Missouri, 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.