Alert archive / Minnesota / Mesoscale Discussions in 2004

Mesoscale Discussion 1236

June 12, 200431 counties in Minnesota; 9 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2004, 9:10 PM CDT for 31 counties in Minnesota; 9 counties in Wisconsin. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 12, 2004, 9:10 PM CDT (02:10 UTC)
Expired: Jun 12, 2004, 11:15 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 40 counties

Anoka County, MN, Benton County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Dakota County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Lyon County, MN, McLeod County, MN, Meeker County, MN, Nicollet County, MN, Pope County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Wabasha County, MN, Washington County, MN, Wright County, MN, Yellow Medicine County, MN, Barron County, WI, Burnett County, WI, Chippewa County, WI, Dunn County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Saint Croix County, WI, Washburn County, WI

The radar

The Minneapolis radar (KMPX), 55 km from the middle of the area, began a volume at 02:11 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

Aberdeen, SD (KABR), launched 00:00Z, 2.2 hours before the alert went out and 336 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: 334 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 2209 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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
Jun 12, 7:00 PM CDT	Mesoscale Discussion	SPC	Dakota, Dodge, Fillmore, Goodhue, Houston, Mower and 6 more	2 hr
Jun 12, 9:33 PM CDT	Mesoscale Discussion	SPC	Anoka, Benton, Carver, Chippewa, Chisago, Dakota and 25 more	117 min
Jun 13, 3:29 PM CDT	Mesoscale Discussion	SPC	Aitkin, Carlton, Chisago, Isanti, Kanabec, Mille Lacs and 2 more	2 hr
Jun 13, 5:34 PM CDT	Mesoscale Discussion	SPC	Big Stone, Stevens, Traverse	116 min
Jun 13, 7:29 AM CDT	Mesoscale Discussion	SPC	Adams, Clark, Florence, Forest, Jackson, Juneau and 19 more	91 min
Jun 13, 11:45 AM CDT	Mesoscale Discussion	SPC	Brown, Calumet, Door, Fond du Lac, Kenosha, Kewaunee and 10 more	90 min

Nearby

Mesoscale Discussions in Minnesota, 2004 Mesoscale Discussions in Wisconsin, 2004 Every mesoscale discussion in 2004

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.