Alert archive / Wisconsin / Mesoscale Discussions in 2006

Mesoscale Discussion 1402

July 1, 20066 counties in Michigan; 23 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jul 1, 2006, 4:43 PM EDT for 6 counties in Michigan; 23 counties in Wisconsin. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jul 1, 2006, 4:43 PM EDT (20:43 UTC)
Expired: Jul 1, 2006, 6:45 PM EDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 29 counties

Alger County, MI, Delta County, MI, Dickinson County, MI, Luce County, MI, Menominee County, MI, Schoolcraft County, MI, Brown County, WI, Calumet County, WI, Clark County, WI, Door County, WI, Florence County, WI, Forest County, WI, Kewaunee County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Oneida County, WI, Outagamie County, WI, Portage County, WI, Shawano County, WI, Taylor County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 80 km from the middle of the area, began a volume at 20:45 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, 8.7 hours before the alert went out and 82 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: 404 J/kg
Mixed-layer CIN: -171 J/kg
Mixed-layer LCL: 1205 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

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 1, 1:58 PM EDT	Mesoscale Discussion	SPC	Alger, Baraga, Delta, Dickinson, Gogebic, Iron and 4 more	2 hr
Jul 1, 2:55 PM EDT	Severe Thunderstorm Watch	SPC	Alger, Delta, Dickinson, Iron, Luce, Marquette and 2 more	8 hr
Jul 1, 4:11 PM EDT	Mesoscale Discussion	SPC	Alcona, Alpena, Antrim, Benzie, Charlevoix, Cheboygan and 16 more	94 min
Jul 1, 4:41 PM EDT	Severe Thunderstorm Watch	SPC	Alcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 18 more	5 hr
Jul 1, 1:44 AM EDT	Mesoscale Discussion	SPC	Ashland, Barron, Bayfield, Buffalo, Burnett, Chippewa and 15 more	91 min
Jul 1, 3:50 AM EDT	Mesoscale Discussion	SPC	Bayfield, Burnett, Douglas	85 min
Jul 1, 5:30 PM EDT	Severe Thunderstorm Watch	SPC	Crawford, Grant	4 hr
Jul 1, 7:35 PM EDT	Mesoscale Discussion	SPC	Adams, Columbia, Crawford, Dane, Dodge, Fond du Lac and 15 more	25 min
Jul 1, 7:40 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Columbia, Dane, Dodge, Fond du Lac, Green and 18 more	4 hr

Nearby

Mesoscale Discussions in Wisconsin, 2006 Mesoscale Discussions in Michigan, 2006 Every mesoscale discussion in 2006

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.