Alert archive / Minnesota / Mesoscale Discussions in 2004

Mesoscale Discussion 1390

June 23, 200435 counties in Minnesota; 18 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 23, 2004, 12:17 PM CDT for 35 counties in Minnesota; 18 counties in South Dakota. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued: Jun 23, 2004, 12:17 PM CDT (17:17 UTC)
Expired: Jun 23, 2004, 1:45 PM CDT
In force: 88 min
Issued by: the Storm Prediction Center

All 53 counties

Big Stone County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Cottonwood County, MN, Douglas County, MN, Grant County, MN, Jackson County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Lincoln County, MN, Lyon County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Pipestone County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Rock County, MN, Sibley County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Waseca County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN, Beadle County, SD, Brookings County, SD, Brown County, SD, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Kingsbury County, SD, Lake County, SD, Marshall County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Roberts County, SD, Spink County, SD

The radar

The Sioux Falls radar (KFSD), 169 km from the middle of the area, began a volume at 17:19 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.

Severe Thunderstorm Watch 511Jun 23, 12:45 PM CDT

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 5.3 hours before the alert went out and 184 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: -99 J/kg
Mixed-layer LCL: 952 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 215 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 23, 10:17 AM CDT	Mesoscale Discussion	SPC	Aitkin, Anoka, Becker, Beltrami, Benton, Carlton and 34 more	118 min
Jun 23, 10:50 AM CDT	Severe Thunderstorm Watch	SPC	Becker, Beltrami, Cass, Clay, Clearwater, Hubbard and 5 more	5 hr
Jun 23, 12:45 PM CDT	Severe Thunderstorm Watch	SPC	Big Stone, Blue Earth, Brown, Carver, Chippewa, Cottonwood and 32 more	6 hr
Jun 23, 1:24 PM CDT	Mesoscale Discussion	SPC	Becker, Cass, Crow Wing, Grant, Hubbard, Otter Tail and 2 more	66 min
Jun 23, 3:45 PM CDT	Mesoscale Discussion	SPC	Blue Earth, Brown, Carver, Cottonwood, Dakota, Dodge and 23 more	90 min
Jun 23, 4:05 PM CDT	Severe Thunderstorm Watch	SPC	Fillmore, Goodhue, Houston, Mower, Olmsted, Wabasha and 1 more	5 hr

Nearby

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