Alert archive / Wisconsin / Mesoscale Discussions in 2017
Mesoscale Discussion 1248
The Storm Prediction Center issued this mesoscale discussion at Jul 6, 2017, 5:04 PM CDT for Gogebic County, Iron County, Menominee County, Michigan; 26 counties in Wisconsin. It was in force for 116 min.
The area
The outline as issued.
The facts
- Issued
- Jul 6, 2017, 5:04 PM CDT (22:04 UTC)
- Expired
- Jul 6, 2017, 7:00 PM CDT
- In force
- 116 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 29 counties
Gogebic County, MI, Iron County, MI, Menominee County, MI, Brown County, WI, Calumet County, WI, Florence County, WI, Forest County, WI, Green Lake County, WI, Iron County, WI, Kewaunee County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Oneida County, WI, Outagamie County, WI, Portage County, WI, Price County, WI, Rusk County, WI, Sawyer County, WI, Shawano County, WI, Taylor County, WI, Vilas County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI
The radar
The Green Bay radar (KGRB), 147 km from the middle of the area, began a volume at 22:04 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.1 hours before the alert went out and 149 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
- 999 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 1184 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 94 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 |
|---|---|---|---|---|
| Jul 6, 5:43 AM CDT | Mesoscale Discussion | SPC | Baraga, Dickinson, Gogebic, Houghton, Iron, Marquette and 1 more | 2 hr |
| Jul 6, 2:00 PM CDT | Mesoscale Discussion | SPC | Houghton, Ontonagon | 60 min |
| Jul 6, 5:54 PM CDT | Severe Thunderstorm Watch | SPC | Baraga, Delta, Dickinson, Gogebic, Houghton, Iron and 3 more | 6 hr |
| Jul 6, 12:51 AM CDT | Mesoscale Discussion | SPC | Burnett, Douglas | 114 min |
| Jul 6, 3:26 AM CDT | Severe Thunderstorm Watch | SPC | Ashland, Barron, Bayfield, Burnett, Chippewa, Douglas and 8 more | 8 hr |
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.