Alert archive / Wisconsin / Mesoscale Discussions in 2018
Mesoscale Discussion 975
The Storm Prediction Center issued this mesoscale discussion at Jul 1, 2018, 2:37 PM EDT for 9 counties in Michigan; 41 counties in Wisconsin. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- Jul 1, 2018, 2:37 PM EDT (18:37 UTC)
- Expired
- Jul 1, 2018, 3:30 PM EDT
- In force
- 53 min
- Issued by
- the Storm Prediction Center
All 50 counties
Alger County, MI, Baraga County, MI, Delta County, MI, Dickinson County, MI, Iron County, MI, Luce County, MI, Marquette County, MI, Menominee County, MI, Schoolcraft 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 County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Juneau County, WI, Kenosha County, WI, Kewaunee County, WI, Lafayette County, WI, Langlade County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Marquette County, WI, Menominee County, WI, Milwaukee County, WI, Oconto County, WI, Outagamie County, WI, Ozaukee County, WI, Portage County, WI, Racine County, WI, Rock County, WI, Sauk County, WI, Shawano County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI
The radar
The Green Bay radar (KGRB), 88 km from the middle of the area, began a volume at 18:39 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, 6.6 hours before the alert went out and 90 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
- 10 J/kg
- Mixed-layer CIN
- -259 J/kg
- Mixed-layer LCL
- 1272 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jun 30, 9:05 PM EDT | Mesoscale Discussion | SPC | Alger, Delta, Dickinson, Gogebic, Iron, Menominee | 85 min |
| Jul 1, 12:37 PM EDT | Mesoscale Discussion | SPC | Delta, Dickinson, Iron, Menominee | 83 min |
| Jul 1, 1:04 PM EDT | Tornado Watch | SPC | Alger, Delta, Dickinson, Iron, Luce, Marquette and 2 more | 6 hr |
| Jul 1, 4:18 PM EDT | Mesoscale Discussion | SPC | Delta, Luce, Mackinac, Menominee, Schoolcraft | 87 min |
| Jul 1, 6:05 PM EDT | Mesoscale Discussion | SPC | Antrim, Benzie, Charlevoix, Cheboygan, Chippewa, Clare and 16 more | 2 hr |
| Jul 1, 6:35 PM EDT | Severe Thunderstorm Watch | SPC | Allegan, Antrim, Barry, Benzie, Charlevoix, Cheboygan and 22 more | 3 hr |
| Jul 1, 7:51 PM EDT | Mesoscale Discussion | SPC | Allegan, Berrien, Cass, Van Buren | 114 min |
Nearby
Mesoscale Discussions in Wisconsin, 2018Mesoscale Discussions in Michigan, 2018Every mesoscale discussion in 2018
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.