Alert archive / Arkansas / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 740
The Storm Prediction Center issued this severe thunderstorm watch at Jul 13, 2003, 5:10 PM CDT for 24 counties in Arkansas; 10 counties in Missouri. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 13, 2003, 5:10 PM CDT (22:10 UTC)
- Expired
- Jul 13, 2003, 10:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 34 counties
Baxter County, AR, Boone County, AR, Carroll County, AR, Cleburne County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Fulton County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Lawrence County, AR, Lee County, AR, Marion County, AR, Monroe County, AR, Poinsett County, AR, Prairie 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, Barry County, MO, Christian County, MO, Douglas County, MO, Greene County, MO, Howell County, MO, Ozark County, MO, Stone County, MO, Taney County, MO, Webster County, MO, Wright County, MO
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 5:11 PM CDT | Severe Thunderstorm Warning | LZK | Fulton | 14 min |
| Jul 13, 5:20 PM CDT | Severe Thunderstorm Warning | LZK | Independence, Sharp | 60 min |
| Jul 13, 5:26 PM CDT | Severe Thunderstorm Warning | LZK | Fulton | 44 min |
| Jul 13, 6:03 PM CDT | Severe Thunderstorm Warning | MEG | Crittenden | 42 min |
| Jul 13, 6:26 PM CDT | Severe Thunderstorm Warning | MEG | Lee | 49 min |
| Jul 13, 7:13 PM CDT | Severe Thunderstorm Warning | MEG | Lee | 47 min |
| Jul 13, 8:18 PM CDT | Severe Thunderstorm Warning | MEG | Lee, Phillips | 42 min |
| Jul 13, 9:08 PM CDT | Severe Thunderstorm Warning | MEG | St. Francis | 37 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
Springfield, MO (KSGF), launched 12:00Z, 10.2 hours before the alert went out and 150 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.
- Mixed-layer CAPE
- 1689 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 835 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 6.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 11:30 AM CDT | Mesoscale Discussion | SPC | Arkansas, Bradley, Calhoun, Cleveland, Columbia, Crittenden and 11 more | 2 hr |
| Jul 13, 11:55 AM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleveland and 11 more | 6 hr |
| Jul 13, 1:30 PM CDT | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Crawford, Franklin, Johnson and 6 more | 60 min |
| Jul 13, 3:53 PM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Chicot, Crittenden, Desha, Lee and 3 more | 67 min |
| Jul 13, 4:44 PM CDT | Mesoscale Discussion | SPC | Baxter, Boone, Clay, Cleburne, Craighead, Fulton and 12 more | 61 min |
| Jul 13, 5:55 PM CDT | Severe Thunderstorm Watch | SPC | Chicot | 4 hr |
| Jul 13, 6:54 PM CDT | Mesoscale Discussion | SPC | Crittenden, Cross, Jackson, Lee, Monroe, Poinsett and 4 more | 96 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.