Alert archive / Iowa / Mesoscale Discussions in 2008
Mesoscale Discussion 321
The Storm Prediction Center issued this mesoscale discussion at Mar 2, 2008, 6:55 PM CST for 5 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 2, 2008, 6:55 PM CST (00:55 UTC)
- Expired
- Mar 3, 2008, 1:00 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 68 counties
Adair County, IA, Adams County, IA, Allamakee County, IA, Audubon County, IA, Benton County, IA, Black Hawk County, IA, Boone County, IA, Bremer County, IA, Buchanan County, IA, Butler County, IA, Cass County, IA, Cerro Gordo County, IA, Chickasaw County, IA, Clarke County, IA, Dallas County, IA, Decatur County, IA, Fayette County, IA, Floyd County, IA, Franklin County, IA, Fremont County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hardin County, IA, Howard County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Marion County, IA, Marshall County, IA, Mills County, IA, Mitchell County, IA, Montgomery County, IA, Page County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Story County, IA, Tama County, IA, Taylor County, IA, Union County, IA, Warren County, IA, Winneshiek County, IA, Wright County, IA, Brown County, KS, Clay County, KS, Doniphan County, KS, Geary County, KS, Jackson County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS, Riley County, KS, Washington County, KS, Fillmore County, MN, Andrew County, MO, Atchison County, MO, Gentry County, MO, Holt County, MO, Nodaway County, MO, Worth County, MO, Gage County, NE, Johnson County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE
The radar
The Des Moines radar (KDMX), 77 km from the middle of the area, began a volume at 00:55 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, 0.9 hours before the alert went out and 277 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 512 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 284 m²/s²
- 0-3 km storm-relative helicity
- 465 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Mar 2, 6:18 PM CST | Severe Thunderstorm Watch | SPC | Allen, Bourbon, Chautauqua, Cherokee, Crawford, Elk and 6 more | 7 hr |
| Mar 2, 9:33 PM CST | Mesoscale Discussion | SPC | Cherokee, Crawford, Labette | 57 min |
| Mar 3, 2:04 PM CST | Mesoscale Discussion | SPC | Christian, Crawford, Dallas, Dent, Douglas, Franklin and 15 more | 5 hr |
Nearby
Mesoscale Discussions in Iowa, 2008Mesoscale Discussions in Kansas, 2008Mesoscale Discussions in Missouri, 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.