Alert archive / Iowa / Mesoscale Discussions in 2009
Mesoscale Discussion 38
The Storm Prediction Center issued this mesoscale discussion at Jan 13, 2009, 6:12 PM CST for Henderson County, Mercer County, Rock Island County, Illinois; 50 counties in Iowa; 7 counties in Minnesota. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 13, 2009, 6:12 PM CST (00:12 UTC)
- Expired
- Jan 13, 2009, 10:15 PM CST
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 60 counties
Benton County, IA, Black Hawk County, IA, Boone County, IA, Buchanan County, IA, Buena Vista County, IA, Butler County, IA, Calhoun County, IA, Cedar County, IA, Cerro Gordo County, IA, Cherokee County, IA, Clay County, IA, Clinton County, IA, Des Moines County, IA, Dickinson County, IA, Emmet County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Henry County, IA, Humboldt County, IA, Iowa County, IA, Jasper County, IA, Jefferson County, IA, Johnson County, IA, Jones County, IA, Keokuk County, IA, Kossuth County, IA, Linn County, IA, Louisa County, IA, Lyon County, IA, Mahaska County, IA, Marshall County, IA, Muscatine County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Poweshiek County, IA, Sac County, IA, Scott County, IA, Story County, IA, Tama County, IA, Washington County, IA, Webster County, IA, Winnebago County, IA, Wright County, IA, Henderson County, IL, Mercer County, IL, Rock Island County, IL, Cottonwood County, MN, Jackson County, MN, Martin County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN
The radar
The Des Moines radar (KDMX), 81 km from the middle of the area, began a volume at 00:10 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
Davenport, (KDVN), launched 00:00Z, 0.2 hours before the alert went out and 211 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
- 1711 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 182 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 |
|---|---|---|---|---|
| Jan 13, 11:38 PM CST | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cass, Champaign, Christian and 46 more | 4 hr |
Nearby
Mesoscale Discussions in Iowa, 2009Mesoscale Discussions in Minnesota, 2009Mesoscale Discussions in Illinois, 2009Every mesoscale discussion in 2009
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.