Alert archive / Arkansas / Mesoscale Discussions in 2003
Mesoscale Discussion 2087
The Storm Prediction Center issued this mesoscale discussion at Aug 4, 2003, 8:10 PM CDT for 4 states. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- Aug 4, 2003, 8:10 PM CDT (01:10 UTC)
- Expired
- Aug 4, 2003, 9:45 PM CDT
- In force
- 95 min
- Issued by
- the Storm Prediction Center
All 63 counties
Baxter County, AR, Boone County, AR, Carroll County, AR, Clay County, AR, Cleburne County, AR, Conway County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Faulkner County, AR, Fulton County, AR, Greene County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Johnson County, AR, Lawrence County, AR, Lee County, AR, Madison County, AR, Marion County, AR, Mississippi County, AR, Newton County, AR, Poinsett County, AR, Pope County, AR, Randolph 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, Butler County, MO, Christian County, MO, Douglas County, MO, Dunklin County, MO, Howell County, MO, New Madrid County, MO, Oregon County, MO, Ozark County, MO, Pemiscot County, MO, Ripley County, MO, Taney County, MO, Benton County, MS, DeSoto County, MS, Lafayette County, MS, Marshall County, MS, Tate County, MS, Tunica County, MS, Carroll County, TN, Chester County, TN, Crockett County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Haywood County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN
The radar
The Little Rock radar (KLZK), 146 km from the middle of the area, began a volume at 01:11 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.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 1.2 hours before the alert went out and 177 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
- 2196 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1338 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 5.7
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 9:00 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Clay, Cleburne, Craighead, Crittenden, Cross and 16 more | 6 hr |
| Aug 4, 11:02 PM CDT | Mesoscale Discussion | SPC | Clay, Cleburne, Craighead, Crittenden, Cross, Greene and 11 more | 88 min |
| Aug 4, 7:13 PM CDT | Mesoscale Discussion | SPC | Attala, Calhoun, Carroll, Chickasaw, Choctaw, Clarke and 31 more | 2 hr |
| Aug 5, 1:28 AM CDT | Mesoscale Discussion | SPC | Alcorn, Benton, Chickasaw, Clay, Itawamba, Lee and 8 more | 62 min |
| Aug 5, 1:50 PM CDT | Mesoscale Discussion | SPC | Andrew, Atchison, Barton, Bates, Benton, Buchanan and 25 more | 115 min |
| Aug 5, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Bates, Benton, Camden, Cass, Cedar and 20 more | 5 hr |
| Aug 5, 5:51 PM CDT | Mesoscale Discussion | SPC | Barton, Bates, Benton, Camden, Cass, Cedar and 20 more | 114 min |
| Aug 4, 8:59 PM CDT | Mesoscale Discussion | SPC | Blount, Bradley, Carter, Claiborne, Cocke, Grainger and 16 more | 2 hr |
Nearby
Mesoscale Discussions in Arkansas, 2003Mesoscale Discussions in Tennessee, 2003Mesoscale Discussions in Missouri, 2003Every mesoscale discussion 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.