Alert archive / Minnesota / Mesoscale Discussions in 2003

Mesoscale Discussion 1542

June 28, 200316 counties in Minnesota; 5 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Jun 28, 2003, 6:56 PM CDT for 16 counties in Minnesota; 5 counties in Wisconsin. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 28, 2003, 6:56 PM CDT (23:56 UTC)
Expired: Jun 28, 2003, 9:00 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

All 21 counties

Aitkin County, MN, Anoka County, MN, Benton County, MN, Cass County, MN, Chisago County, MN, Crow Wing County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN, Pine County, MN, Ramsey County, MN, Sherburne County, MN, Washington County, MN, Wright County, MN, Burnett County, WI, Dunn County, WI, Pierce County, WI, Polk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 101 km from the middle of the area, began a volume at 23:55 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

International Fa, MN (KINL), launched 12:00Z, 11.9 hours before the alert went out and 314 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1207 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 73 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 28, 12:41 PM CDT	Mesoscale Discussion	SPC	Aitkin, Becker, Beltrami, Benton, Cass, Clearwater and 17 more	2 hr
Jun 28, 2:58 PM CDT	Mesoscale Discussion	SPC	Anoka, Benton, Carver, Dakota, Goodhue, Hennepin and 9 more	2 hr

Nearby

Mesoscale Discussions in Minnesota, 2003 Mesoscale Discussions in Wisconsin, 2003 Every mesoscale discussion in 2003

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.