Alert archive / Wisconsin / Mesoscale Discussions in 2016

Mesoscale Discussion 725

May 25, 2016Jo Daviess County, Illinois; Dubuque County, Iowa; 31 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at May 25, 2016, 2:17 PM CDT for Jo Daviess County, Illinois; Dubuque County, Iowa; 31 counties in Wisconsin. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued: May 25, 2016, 2:17 PM CDT (19:17 UTC)
Expired: May 25, 2016, 4:15 PM CDT
In force: 118 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

All 33 counties

Dubuque County, IA, Jo Daviess County, IL, Adams County, WI, Chippewa County, WI, Clark County, WI, Columbia County, WI, Crawford County, WI, Dane County, WI, Dodge County, WI, Eau Claire County, WI, Fond du Lac County, WI, Grant County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jackson County, WI, Jefferson County, WI, Juneau County, WI, La Crosse County, WI, Lafayette County, WI, Lincoln County, WI, Marathon County, WI, Marquette County, WI, Monroe County, WI, Portage County, WI, Richland County, WI, Rock County, WI, Sauk County, WI, Taylor County, WI, Trempealeau County, WI, Vernon County, WI, Waushara County, WI, Wood County, WI

The radar

The La Crosse radar (KARX), 95 km from the middle of the area, began a volume at 19:20 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, 7.3 hours before the alert went out and 191 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: 869 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 108 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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Nearby

Mesoscale Discussions in Wisconsin, 2016 Mesoscale Discussions in Illinois, 2016 Mesoscale Discussions in Iowa, 2016 Every mesoscale discussion in 2016

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.