Alert archive / Minnesota / Mesoscale Discussions in 2005

Mesoscale Discussion 1544

June 29, 200527 counties in Minnesota; 8 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jun 29, 2005, 6:37 PM CDT for 27 counties in Minnesota; 8 counties in Wisconsin. It was in force for 83 min.

The area

The outline as issued.

The facts

Issued: Jun 29, 2005, 6:37 PM CDT (23:37 UTC)
Expired: Jun 29, 2005, 8:00 PM CDT
In force: 83 min
Issued by: the Storm Prediction Center

All 35 counties

Aitkin County, MN, Anoka County, MN, Carlton County, MN, Carver County, MN, Chisago County, MN, Dakota County, MN, Dodge County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Le Sueur County, MN, Mille Lacs County, MN, Mower County, MN, Olmsted County, MN, Pine County, MN, Ramsey County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Steele County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Winona County, MN, Barron County, WI, Buffalo County, WI, Burnett County, WI, Dunn County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 76 km from the middle of the area, began a volume at 23:37 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.6 hours before the alert went out and 77 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: 318 J/kg
Mixed-layer CIN: -355 J/kg
Mixed-layer LCL: 1058 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 187 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 29, 11:01 AM CDT	Mesoscale Discussion	SPC	Big Stone, Chippewa, Douglas, Grant, Lac qui Parle, Lincoln and 6 more	59 min
Jun 29, 11:30 AM CDT	Tornado Watch	SPC	Big Stone, Chippewa, Cottonwood, Douglas, Grant, Jackson and 13 more	7 hr
Jun 29, 1:52 PM CDT	Mesoscale Discussion	SPC	Big Stone, Lac qui Parle, Lincoln, Traverse, Yellow Medicine	113 min
Jun 29, 3:37 PM CDT	Mesoscale Discussion	SPC	Becker, Big Stone, Chippewa, Clay, Cottonwood, Douglas and 25 more	53 min
Jun 29, 3:50 PM CDT	Tornado Watch	SPC	Becker, Benton, Big Stone, Blue Earth, Brown, Cass and 35 more	7 hr

Nearby

Mesoscale Discussions in Minnesota, 2005 Mesoscale Discussions in Wisconsin, 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.