Alert archive / Wisconsin / Mesoscale Discussions in 2011
Mesoscale Discussion 1508
The Storm Prediction Center issued this mesoscale discussion at Jul 5, 2011, 1:29 PM EDT for Delta County, Dickinson County, Menominee County, Michigan; Houston County, Minnesota; 27 counties in Wisconsin. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Jul 5, 2011, 1:29 PM EDT (17:29 UTC)
- Expired
- Jul 5, 2011, 3:00 PM EDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 31 counties
Delta County, MI, Dickinson County, MI, Menominee County, MI, Houston County, MN, Adams County, WI, Brown County, WI, Calumet County, WI, Columbia County, WI, Crawford County, WI, Dodge County, WI, Door County, WI, Fond du Lac County, WI, Green Lake County, WI, Juneau County, WI, La Crosse County, WI, Langlade County, WI, Marinette County, WI, Marquette County, WI, Menominee County, WI, Monroe County, WI, Oconto County, WI, Outagamie County, WI, Portage County, WI, Richland County, WI, Sauk County, WI, Shawano County, WI, Vernon County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI
The radar
The Green Bay radar (KGRB), 56 km from the middle of the area, began a volume at 17:30 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 5.5 hours before the alert went out and 58 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
- 144 J/kg
- Mixed-layer CIN
- -148 J/kg
- Mixed-layer LCL
- 1423 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 153 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 4, 8:14 PM EDT | Severe Thunderstorm Watch | SPC | Aitkin, Becker, Beltrami, Benton, Carlton, Cass and 38 more | 9 hr |
| Jul 4, 11:42 PM EDT | Mesoscale Discussion | SPC | Aitkin, Becker, Benton, Carlton, Cass, Clay and 19 more | 2 hr |
| Jul 5, 12:41 AM EDT | Severe Thunderstorm Watch | SPC | Big Stone, Cottonwood, Lincoln, Lyon, Murray, Pipestone and 1 more | 5 hr |
| Jul 5, 4:32 PM EDT | Mesoscale Discussion | SPC | Nobles, Rock | 88 min |
Nearby
Mesoscale Discussions in Wisconsin, 2011Mesoscale Discussions in Michigan, 2011Mesoscale Discussions in Minnesota, 2011Every mesoscale discussion in 2011
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.