Alert archive / Wisconsin / Mesoscale Discussions in 2005

Mesoscale Discussion 1633

July 4, 20055 states

The Storm Prediction Center issued this mesoscale discussion at Jul 4, 2005, 2:53 AM CDT for 5 states. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: Jul 4, 2005, 2:53 AM CDT (07:53 UTC)
Expired: Jul 4, 2005, 4:30 AM CDT
In force: 97 min
Issued by: the Storm Prediction Center

All 97 counties

Allamakee County, IA, Benton County, IA, Black Hawk County, IA, Buchanan County, IA, Cedar County, IA, Clayton County, IA, Clinton County, IA, Delaware County, IA, Dubuque County, IA, Fayette County, IA, Iowa County, IA, Jackson County, IA, Johnson County, IA, Jones County, IA, Linn County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Washington County, IA, Boone County, IL, Bureau County, IL, Carroll County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Grundy County, IL, Henry County, IL, Jo Daviess County, IL, Kane County, IL, Kankakee County, IL, Kendall County, IL, Knox County, IL, Lake County, IL, LaSalle County, IL, Lee County, IL, Livingston County, IL, Marshall County, IL, McHenry County, IL, McLean County, IL, Mercer County, IL, Ogle County, IL, Peoria County, IL, Putnam County, IL, Rock Island County, IL, Stark County, IL, Stephenson County, IL, Whiteside County, IL, Will County, IL, Winnebago County, IL, Woodford County, IL, Lake County, IN, Benzie County, MI, Manistee County, MI, Mason County, MI, Menominee County, MI, Muskegon County, MI, Oceana County, MI, Adams County, WI, Brown County, WI, Calumet County, WI, Columbia County, WI, Crawford County, WI, Dane County, WI, Dodge County, WI, Door County, WI, Fond du Lac County, WI, Grant County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Juneau County, WI, Kenosha County, WI, Kewaunee County, WI, Lafayette County, WI, Manitowoc County, WI, Marinette County, WI, Marquette County, WI, Menominee County, WI, Milwaukee County, WI, Oconto County, WI, Outagamie County, WI, Ozaukee County, WI, Portage County, WI, Racine County, WI, Richland County, WI, Rock County, WI, Sauk County, WI, Shawano County, WI, Sheboygan County, WI, Vernon County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI

The radar

The Milwaukee radar (KMKX), 44 km from the middle of the area, began a volume at 07:55 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 00:00Z, 7.9 hours before the alert went out and 179 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: 1480 J/kg
Mixed-layer CIN: -319 J/kg
Mixed-layer LCL: 1839 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 112 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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
Jul 4, 11:13 AM CDT	Mesoscale Discussion	SPC	Bond, Bureau, Calhoun, Cass, Champaign, Christian and 41 more	92 min
Jul 4, 12:00 PM CDT	Severe Thunderstorm Watch	SPC	Bond, Champaign, Christian, Clark, Clay, Clinton and 41 more	6 hr
Jul 4, 12:21 PM CDT	Mesoscale Discussion	SPC	Monroe	84 min
Jul 4, 12:50 PM CDT	Severe Thunderstorm Watch	SPC	Alexander, Franklin, Hamilton, Jackson, Johnson, Perry and 4 more	6 hr
Jul 4, 3:22 PM CDT	Mesoscale Discussion	SPC	Alexander, Bond, Champaign, Christian, Clark, Clay and 49 more	83 min
Jul 4, 5:41 PM CDT	Mesoscale Discussion	SPC	Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more	94 min
Jul 4, 2:18 PM CDT	Mesoscale Discussion	SPC	Elkhart, LaGrange, Saint Joseph	87 min
Jul 4, 2:50 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Allen, Cass, DeKalb, Elkhart, Fulton and 17 more	4 hr

Nearby

Mesoscale Discussions in Wisconsin, 2005 Mesoscale Discussions in Illinois, 2005 Mesoscale Discussions in Iowa, 2005 Every mesoscale discussion in 2005

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.