Alert archive / Arkansas / Mesoscale Discussions in 2003
Mesoscale Discussion 1893
The Storm Prediction Center issued this mesoscale discussion at Jul 19, 2003, 1:27 AM CDT for 19 counties in Arkansas; 9 counties in Missouri. It was in force for 63 min.
The area
The outline as issued.
The facts
- Issued
- Jul 19, 2003, 1:27 AM CDT (06:27 UTC)
- Expired
- Jul 19, 2003, 2:30 AM CDT
- In force
- 63 min
- Issued by
- the Storm Prediction Center
All 28 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, Jefferson County, AR, Lonoke County, AR, Marion County, AR, Monroe County, AR, Prairie County, AR, Pulaski County, AR, Searcy County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Woodruff County, AR, Camden County, MO, Christian County, MO, Dallas County, MO, Douglas County, MO, Laclede County, MO, Ozark County, MO, Taney County, MO, Webster County, MO, Wright County, MO
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 6.5 hours before the alert went out and 136 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
- 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
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 |
|---|---|---|---|---|
| Jul 18, 7:08 PM CDT | Mesoscale Discussion | SPC | Baxter, Boone, Carroll, Fulton, Marion | 97 min |
| Jul 18, 7:55 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Clay, Cleburne, Craighead, Crittenden, Cross and 16 more | 6 hr |
| Jul 18, 11:13 PM CDT | Mesoscale Discussion | SPC | Baxter, Clay, Cleburne, Craighead, Crittenden, Cross and 16 more | 92 min |
| Jul 19, 1:40 AM CDT | Severe Thunderstorm Watch | SPC | Baxter, Boone, Cleburne, Conway, Faulkner, Fulton and 18 more | 5 hr |
| Jul 19, 3:36 AM CDT | Mesoscale Discussion | SPC | Arkansas, Faulkner, Grant, Jefferson, Lincoln, Lonoke and 4 more | 84 min |
| Jul 19, 5:41 AM CDT | Mesoscale Discussion | SPC | Arkansas, Cleburne, Conway, Faulkner, Fulton, Independence and 16 more | 94 min |
| Jul 18, 7:34 PM CDT | Mesoscale Discussion | SPC | Audrain, Bollinger, Butler, Callaway, Cape Girardeau, Carter and 26 more | 56 min |
Nearby
Mesoscale Discussions in Arkansas, 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.