Alert archive / Wisconsin / Mesoscale Discussions in 2017
Mesoscale Discussion 1250
The Storm Prediction Center issued this mesoscale discussion at Jul 6, 2017, 10:43 PM EDT for 8 counties in Michigan; 39 counties in Wisconsin. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- Jul 6, 2017, 10:43 PM EDT (02:43 UTC)
- Expired
- Jul 7, 2017, 12:15 AM EDT
- In force
- 92 min
- Issued by
- the Storm Prediction Center
All 47 counties
Benzie County, MI, Delta County, MI, Grand Traverse County, MI, Leelanau County, MI, Manistee County, MI, Mason County, MI, Menominee County, MI, Wexford County, MI, Adams County, WI, Brown County, WI, Calumet County, WI, Columbia County, WI, Dane County, WI, Dodge County, WI, Door County, WI, Florence County, WI, Fond du Lac County, WI, Forest County, WI, Green Lake County, WI, Jefferson 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, Ozaukee County, WI, Portage County, WI, Richland County, WI, Rusk County, WI, Sauk County, WI, Shawano County, WI, Sheboygan County, WI, Taylor County, WI, Vernon County, WI, Washington County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI
The radar
The Green Bay radar (KGRB), 60 km from the middle of the area, began a volume at 02:46 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 00:00Z, 2.7 hours before the alert went out and 61 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
- 1740 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 1469 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 5.9
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 3:35 AM EDT | Mesoscale Discussion | SPC | Barry, Calhoun, Clinton, Eaton, Ingham, Ionia and 4 more | 115 min |
| Jul 7, 12:27 AM EDT | Mesoscale Discussion | SPC | Adams, Columbia, Dodge, Fond du Lac, Green Lake, Juneau and 6 more | 63 min |
| Jul 7, 6:50 PM EDT | Mesoscale Discussion | SPC | Calumet, Columbia, Dodge, Fond du Lac, Green Lake, Jefferson and 11 more | 115 min |
Nearby
Mesoscale Discussions in Wisconsin, 2017Mesoscale Discussions in Michigan, 2017Every mesoscale discussion in 2017
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.