Alert archive / Wisconsin / Mesoscale Discussions in 2011

Mesoscale Discussion 1423

June 27, 20114 counties in Michigan; 40 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jun 27, 2011, 3:44 PM CDT for 4 counties in Michigan; 40 counties in Wisconsin. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued: Jun 27, 2011, 3:44 PM CDT (20:44 UTC)
Expired: Jun 27, 2011, 5:15 PM CDT
In force: 91 min
Issued by: the Storm Prediction Center

All 44 counties

Dickinson County, MI, Gogebic County, MI, Iron County, MI, Ontonagon County, MI, Adams County, WI, Ashland County, WI, Brown County, WI, Calumet County, WI, Chippewa County, WI, Clark County, WI, Columbia County, WI, Dodge County, WI, Eau Claire County, WI, Florence County, WI, Fond du Lac County, WI, Forest County, WI, Green Lake County, WI, Iron County, WI, Jackson County, WI, Juneau County, WI, Langlade County, WI, Lincoln County, WI, Marathon County, WI, Marinette County, WI, Marquette County, WI, Menominee County, WI, Monroe County, WI, Oconto County, WI, Oneida County, WI, Outagamie County, WI, Portage County, WI, Price County, WI, Rusk County, WI, Sauk County, WI, Sawyer County, WI, Shawano County, WI, Sheboygan County, WI, Taylor County, WI, Vilas County, WI, Washington County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 135 km from the middle of the area, began a volume at 20:44 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

Davenport, (KDVN), launched 12:00Z, 8.7 hours before the alert went out and 415 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 882 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: -72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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Nearby

Mesoscale Discussions in Wisconsin, 2011 Mesoscale Discussions in Michigan, 2011 Every 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.