Alert archive / Wisconsin / Mesoscale Discussions in 2017

Mesoscale Discussion 980

June 10, 20175 counties in Michigan; 12 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2017, 9:12 PM EDT for 5 counties in Michigan; 12 counties in Wisconsin. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 10, 2017, 9:12 PM EDT (01:12 UTC)
Expired: Jun 10, 2017, 11:15 PM EDT
In force: 2 hr
Issued by: the Storm Prediction Center
Chance of a watch: 5%

Counties Baraga County, MI, Gogebic County, MI, Houghton County, MI, Keweenaw County, MI, Ontonagon County, MI, Barron County, WI, Chippewa County, WI, Dunn County, WI, Iron County, WI, Pepin County, WI, Pierce County, WI, Price County, WI, Rusk County, WI, Saint Croix County, WI, Sawyer County, WI, Taylor County, WI, Vilas County, WI

The radar

The Duluth radar (KDLH), 178 km from the middle of the area, began a volume at 01:12 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, 1.2 hours before the alert went out and 236 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 136 J/kg
Mixed-layer CIN: -528 J/kg
Mixed-layer LCL: 1987 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 156 m²/s²
0-3 km storm-relative helicity: 300 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 11, 10:30 AM EDT	Mesoscale Discussion	SPC	Iron	60 min
Jun 11, 11:39 AM EDT	Severe Thunderstorm Watch	SPC	Delta, Dickinson, Gogebic, Iron, Menominee	5 hr
Jun 11, 1:00 PM EDT	Mesoscale Discussion	SPC	Dickinson, Menominee	2 hr
Jun 11, 2:30 PM EDT	Severe Thunderstorm Watch	SPC	Alpena, Antrim, Charlevoix, Cheboygan, Chippewa, Emmet and 7 more	3 hr
Jun 11, 3:46 PM EDT	Mesoscale Discussion	SPC	Alcona, Alpena, Antrim, Charlevoix, Cheboygan, Chippewa and 11 more	119 min
Jun 11, 7:20 PM EDT	Mesoscale Discussion	SPC	Iron	2 hr
Jun 11, 6:51 AM EDT	Mesoscale Discussion	SPC	Barron, Buffalo, Chippewa, Dunn, Eau Claire, Pepin and 4 more	84 min
Jun 11, 7:28 AM EDT	Severe Thunderstorm Watch	SPC	Barron, Buffalo, Burnett, Chippewa, Clark, Dunn and 12 more	6 hr

Nearby

Mesoscale Discussions in Wisconsin, 2017 Mesoscale Discussions in Michigan, 2017 Every 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.