Alert archive / Wisconsin / Mesoscale Discussions in 2007

Mesoscale Discussion 980

June 3, 20074 states

The Storm Prediction Center issued this mesoscale discussion at Jun 3, 2007, 12:23 PM CDT for 4 states. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: Jun 3, 2007, 12:23 PM CDT (17:23 UTC)
Expired: Jun 3, 2007, 2:00 PM CDT
In force: 97 min
Issued by: the Storm Prediction Center

All 40 counties

Boone County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Ford County, IL, Grundy County, IL, Iroquois County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Lake County, IL, McHenry County, IL, Vermilion County, IL, Will County, IL, Benton County, IN, Newton County, IN, Warren County, IN, Dickinson County, MI, Menominee County, MI, Brown County, WI, Calumet County, WI, Dodge County, WI, Fond du Lac County, WI, Green Lake County, WI, Jefferson County, WI, Kenosha County, WI, Marinette County, WI, Menominee County, WI, Milwaukee County, WI, Oconto County, WI, Outagamie County, WI, Ozaukee County, WI, Racine County, WI, Shawano County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI, Waupaca County, WI, Winnebago County, WI

The radar

The Milwaukee radar (KMKX), 54 km from the middle of the area, began a volume at 17:26 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, 5.4 hours before the alert went out and 147 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: 24 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 775 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 68 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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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 3, 1:45 PM CDT	Mesoscale Discussion	SPC	Adams, Dearborn, Decatur, Fayette, Franklin, Henry and 10 more	90 min
Jun 2, 8:23 PM CDT	Mesoscale Discussion	SPC	Alpena, Cheboygan, Montmorency, Oscoda, Otsego, Presque Isle	67 min

Nearby

Mesoscale Discussions in Wisconsin, 2007 Mesoscale Discussions in Illinois, 2007 Mesoscale Discussions in Indiana, 2007 Every mesoscale discussion in 2007

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.