Alert archive / South Dakota / Mesoscale Discussions in 2004

Mesoscale Discussion 1252

June 13, 2004Big Stone County, Stevens County, Traverse County, Minnesota; 8 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2004, 5:34 PM CDT for Big Stone County, Stevens County, Traverse County, Minnesota; 8 counties in South Dakota. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: Jun 13, 2004, 5:34 PM CDT (22:34 UTC)
Expired: Jun 13, 2004, 7:30 PM CDT
In force: 116 min
Issued by: the Storm Prediction Center

Counties Big Stone County, MN, Stevens County, MN, Traverse County, MN, Brown County, SD, Clark County, SD, Codington County, SD, Day County, SD, Grant County, SD, Marshall County, SD, Roberts County, SD, Spink County, SD

The radar

The Aberdeen radar (KABR), 112 km from the middle of the area, began a volume at 22:38 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

Minneapolis, MN (KMPX), launched 12:00Z, 10.6 hours before the alert went out and 274 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: 9 J/kg
Mixed-layer CIN: -286 J/kg
Mixed-layer LCL: 1564 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: -30 m²/s²
0-3 km storm-relative helicity: 9 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 12, 7:00 PM CDT	Mesoscale Discussion	SPC	Dakota, Dodge, Fillmore, Goodhue, Houston, Mower and 6 more	2 hr
Jun 12, 9:10 PM CDT	Mesoscale Discussion	SPC	Anoka, Benton, Carver, Chippewa, Chisago, Dakota and 25 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

Nearby

Mesoscale Discussions in South Dakota, 2004 Mesoscale Discussions in Minnesota, 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.