Alert archive / Minnesota / Mesoscale Discussions in 2003

Mesoscale Discussion 1469

June 23, 200317 counties in Minnesota; Grant County, Roberts County, South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 23, 2003, 10:16 AM CDT for 17 counties in Minnesota; Grant County, Roberts County, South Dakota. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: Jun 23, 2003, 10:16 AM CDT (15:16 UTC)
Expired: Jun 23, 2003, 12:15 PM CDT
In force: 119 min
Issued by: the Storm Prediction Center

Counties Big Stone County, MN, Cass County, MN, Chippewa County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Morrison County, MN, Otter Tail County, MN, Pope County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Grant County, SD, Roberts County, SD

The radar

The Minneapolis radar (KMPX), 200 km from the middle of the area, began a volume at 15:19 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 566Jun 23, 1:05 PM CDT

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 3.3 hours before the alert went out and 198 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, 1:05 PM CDT	Severe Thunderstorm Watch	SPC	Aitkin, Benton, Carlton, Carver, Cass, Chippewa and 21 more	6 hr
Jun 23, 2:43 PM CDT	Mesoscale Discussion	SPC	Anoka, Benton, Isanti, Kandiyohi, McLeod, Meeker and 6 more	2 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
Jun 23, 1:04 AM CDT	Mesoscale Discussion	SPC	Aurora, Beadle, Bon Homme, Brule, Buffalo, Charles Mix and 21 more	116 min
Jun 23, 5:35 PM CDT	Tornado Watch	SPC	Bon Homme, Charles Mix, Clay, Hutchinson, Lincoln, Turner and 2 more	5 hr

Nearby

Mesoscale Discussions in Minnesota, 2003 Mesoscale Discussions in South Dakota, 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.