Alert archive / Missouri / Mesoscale Discussions in 2008
Mesoscale Discussion 1839
The Storm Prediction Center issued this mesoscale discussion at Jul 21, 2008, 1:48 PM CDT for 5 states. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2008, 1:48 PM CDT (18:48 UTC)
- Expired
- Jul 21, 2008, 3:15 PM CDT
- In force
- 87 min
- Issued by
- the Storm Prediction Center
All 98 counties
Adair County, IA, Adams County, IA, Appanoose County, IA, Cass County, IA, Clarke County, IA, Davis County, IA, Decatur County, IA, Des Moines County, IA, Fremont County, IA, Henry County, IA, Jefferson County, IA, Lee County, IA, Louisa County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Mills County, IA, Monroe County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Van Buren County, IA, Wapello County, IA, Warren County, IA, Wayne County, IA, Adams County, IL, Brown County, IL, Cass County, IL, Fulton County, IL, Hancock County, IL, Henderson County, IL, Knox County, IL, McDonough County, IL, Mercer County, IL, Pike County, IL, Schuyler County, IL, Warren County, IL, Atchison County, KS, Brown County, KS, Doniphan County, KS, Nemaha County, KS, Adair County, MO, Andrew County, MO, Atchison County, MO, Audrain County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Chariton County, MO, Clark County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Gentry County, MO, Grundy County, MO, Harrison County, MO, Holt County, MO, Knox County, MO, Lewis County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Marion County, MO, Mercer County, MO, Monroe County, MO, Nodaway County, MO, Pike County, MO, Platte County, MO, Putnam County, MO, Ralls County, MO, Randolph County, MO, Ray County, MO, Schuyler County, MO, Scotland County, MO, Shelby County, MO, Sullivan County, MO, Worth County, MO, Cass County, NE, Douglas County, NE, Fillmore County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Washington County, NE
The radar
The Pleasant Hill radar (KEAX), 155 km from the middle of the area, began a volume at 18:52 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
Topeka, KS (KTOP), launched 12:00Z, 6.8 hours before the alert went out and 194 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
- 407 J/kg
- Mixed-layer CIN
- -321 J/kg
- Mixed-layer LCL
- 2003 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 20, 10:17 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 18 more | 2 hr |
| Jul 20, 11:25 PM CDT | Severe Thunderstorm Watch | SPC | Hancock, Henderson, McDonough, Mercer, Rock Island, Warren | 8 hr |
| Jul 21, 3:10 AM CDT | Mesoscale Discussion | SPC | Hancock, Henderson, McDonough, Mercer, Rock Island, Warren | 95 min |
| Jul 21, 4:21 AM CDT | Severe Thunderstorm Watch | SPC | Bureau, Cass, Champaign, Christian, Clark, Clay and 44 more | 8 hr |
| Jul 21, 5:10 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Cass, Fulton, Hancock, Henderson and 9 more | 7 hr |
| Jul 20, 8:58 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Crawford, Harrison, Ida, Monona and 5 more | 7 hr |
| Jul 20, 11:10 PM CDT | Mesoscale Discussion | SPC | Harrison, Monona | 95 min |
| Jul 21, 4:01 AM CDT | Mesoscale Discussion | SPC | Plymouth, Sioux | 89 min |
| Jul 20, 7:58 PM CDT | Mesoscale Discussion | SPC | Antelope, Blaine, Boyd, Brown, Cedar, Cherry and 14 more | 92 min |
Nearby
Mesoscale Discussions in Missouri, 2008Mesoscale Discussions in Iowa, 2008Mesoscale Discussions in Nebraska, 2008Every mesoscale discussion in 2008
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.