Alert archive / Missouri / Mesoscale Discussions in 2003
Mesoscale Discussion 1889
The Storm Prediction Center issued this mesoscale discussion at Jul 18, 2003, 7:08 PM CDT for 5 counties in Arkansas; 42 counties in Missouri. It was in force for 97 min.
The area
The outline as issued.
The facts
- Issued
- Jul 18, 2003, 7:08 PM CDT (00:08 UTC)
- Expired
- Jul 18, 2003, 8:45 PM CDT
- In force
- 97 min
- Issued by
- the Storm Prediction Center
All 47 counties
Baxter County, AR, Boone County, AR, Carroll County, AR, Fulton County, AR, Marion County, AR, Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Camden County, MO, Cass County, MO, Cedar County, MO, Christian County, MO, Cole County, MO, Cooper County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Howell County, MO, Jasper County, MO, Johnson County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Oregon County, MO, Osage County, MO, Ozark County, MO, Pettis County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Saline County, MO, Shannon County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Vernon 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, 0.1 hours before the alert went out and 98 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, 7:55 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, 1:27 AM CDT | Mesoscale Discussion | SPC | Baxter, Boone, Cleburne, Conway, Faulkner, Fulton and 13 more | 63 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 Missouri, 2003Mesoscale Discussions in Arkansas, 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.