Alert archive / Missouri / Mesoscale Discussions in 2006
Mesoscale Discussion 1813
The Storm Prediction Center issued this mesoscale discussion at Aug 13, 2006, 8:38 PM CDT for 5 counties in Illinois; 9 counties in Iowa; 29 counties in Missouri. It was in force for 67 min.
The area
The outline as issued.
The facts
- Issued
- Aug 13, 2006, 8:38 PM CDT (01:38 UTC)
- Expired
- Aug 13, 2006, 9:45 PM CDT
- In force
- 67 min
- Issued by
- the Storm Prediction Center
All 43 counties
Appanoose County, IA, Davis County, IA, Henry County, IA, Jefferson County, IA, Keokuk County, IA, Lee County, IA, Van Buren County, IA, Wapello County, IA, Washington County, IA, Adams County, IL, Brown County, IL, Hancock County, IL, Pike County, IL, Schuyler County, IL, Adair County, MO, Audrain County, MO, Boone County, MO, Callaway County, MO, Carroll County, MO, Chariton County, MO, Clark County, MO, Cole County, MO, Cooper County, MO, Daviess County, MO, Grundy County, MO, Howard County, MO, Knox County, MO, Lewis County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Pike County, MO, Putnam County, MO, Ralls County, MO, Randolph County, MO, Saline County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, Sullivan County, MO
The radar
The Quad Cities radar (KDVN), 193 km from the middle of the area, began a volume at 01:39 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 nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 1.6 hours before the alert went out and 335 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
- 938 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 1987 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
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 |
|---|---|---|---|---|
| Aug 14, 2:42 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 14 more | 2 hr |
| Aug 14, 3:47 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clay, Clinton, Edwards, Franklin, Gallatin and 20 more | 6 hr |
| Aug 14, 5:44 PM CDT | Mesoscale Discussion | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 16 more | 61 min |
Nearby
Mesoscale Discussions in Missouri, 2006Mesoscale Discussions in Iowa, 2006Mesoscale Discussions in Illinois, 2006Every mesoscale discussion in 2006
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.