Alert archive / Minnesota / Mesoscale Discussions in 2003

Mesoscale Discussion 1473

June 23, 200312 counties in Minnesota

The Storm Prediction Center issued this mesoscale discussion at Jun 23, 2003, 2:43 PM CDT for 12 counties in Minnesota. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 23, 2003, 2:43 PM CDT (19:43 UTC)
Expired: Jun 23, 2003, 4:45 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Anoka County, MN, Benton County, MN, Isanti County, MN, Kandiyohi County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Renville County, MN, Sherburne County, MN, Stearns County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 116 km from the middle of the area, began a volume at 19:45 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, 7.7 hours before the alert went out and 115 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: 627 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 795 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 110 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 22, 8:05 PM CDT	Mesoscale Discussion	SPC	Big Stone, Chippewa, Douglas, Grant, Lac qui Parle, Otter Tail and 4 more	55 min
Jun 23, 10:16 AM CDT	Mesoscale Discussion	SPC	Big Stone, Cass, Chippewa, Crow Wing, Douglas, Grant and 11 more	119 min
Jun 23, 1:05 PM CDT	Severe Thunderstorm Watch	SPC	Aitkin, Benton, Carlton, Carver, Cass, Chippewa and 21 more	6 hr
Jun 23, 6:24 PM CDT	Mesoscale Discussion	SPC	Big Stone, Chippewa, Cottonwood, Kandiyohi, Lac qui Parle, Lincoln and 10 more	66 min
Jun 23, 6:45 PM CDT	Tornado Watch	SPC	Brown, Chippewa, Cottonwood, Jackson, Kandiyohi, Lac qui Parle and 15 more	4 hr

Nearby

Mesoscale Discussions in Minnesota, 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.