Alert archive / Wisconsin / Mesoscale Discussions in 2009
Mesoscale Discussion 209
The Storm Prediction Center issued this mesoscale discussion at Mar 8, 2009, 12:58 PM CDT for 4 states. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 8, 2009, 12:58 PM CDT (17:58 UTC)
- Expired
- Mar 8, 2009, 5:00 PM CDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 68 counties
Allamakee County, IA, Bremer County, IA, Butler County, IA, Cerro Gordo County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Worth County, IA, Antrim County, MI, Benzie County, MI, Charlevoix County, MI, Delta County, MI, Grand Traverse County, MI, Leelanau County, MI, Manistee County, MI, Menominee County, MI, Schoolcraft County, MI, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Adams County, WI, Brown County, WI, Buffalo County, WI, Calumet County, WI, Clark County, WI, Columbia County, WI, Crawford County, WI, Dodge County, WI, Door County, WI, Eau Claire County, WI, Fond du Lac County, WI, Forest County, WI, Grant County, WI, Green Lake County, WI, Iowa County, WI, Jackson County, WI, Juneau County, WI, Kewaunee County, WI, La Crosse County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Marquette County, WI, Menominee County, WI, Monroe County, WI, Oconto County, WI, Outagamie County, WI, Pepin County, WI, Portage County, WI, Richland County, WI, Sauk County, WI, Shawano County, WI, Sheboygan County, WI, Trempealeau County, WI, Vernon County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI
The radar
The Green Bay radar (KGRB), 108 km from the middle of the area, began a volume at 18:02 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
Minneapolis, MN (KMPX), launched 12:00Z, 6.0 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1189 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 65 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 |
|---|---|---|---|---|
| Mar 7, 8:09 PM CST | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 11 more | 4 hr |
| Mar 8, 6:42 PM CDT | Mesoscale Discussion | SPC | Alcona, Alpena, Antrim, Benzie, Cheboygan, Crawford and 14 more | 3 hr |
Nearby
Mesoscale Discussions in Wisconsin, 2009Mesoscale Discussions in Iowa, 2009Mesoscale Discussions in Michigan, 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.