Alert archive / Minnesota / Mesoscale Discussions in 2019

Mesoscale Discussion 972

June 4, 201931 counties in Minnesota; 7 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2019, 11:44 AM CDT for 31 counties in Minnesota; 7 counties in South Dakota. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Jun 4, 2019, 11:44 AM CDT (16:44 UTC)
Expired: Jun 4, 2019, 2:15 PM CDT
In force: 3 hr
Issued by: the Storm Prediction Center
Chance of a watch: 60%

All 38 counties

Benton County, MN, Big Stone County, MN, Carver County, MN, Chippewa County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Hennepin County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Lincoln County, MN, Lyon County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Otter Tail County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Wright County, MN, Yellow Medicine County, MN, Brookings County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Roberts County, SD

The radar

The Minneapolis radar (KMPX), 176 km from the middle of the area, began a volume at 16:48 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 325Jun 4, 12:45 PM CDT

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 4.7 hours before the alert went out and 173 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: 1070 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 174 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 4, 12:45 PM CDT	Severe Thunderstorm Watch	SPC	Aitkin, Anoka, Benton, Blue Earth, Brown, Carlton and 38 more	7 hr
Jun 4, 2:47 PM CDT	Mesoscale Discussion	SPC	Aitkin, Anoka, Benton, Blue Earth, Brown, Carlton and 33 more	118 min
Jun 4, 4:43 PM CDT	Mesoscale Discussion	SPC	Blue Earth, Brown, Dakota, Dodge, Faribault, Fillmore and 15 more	2 hr
Jun 4, 4:56 PM CDT	Severe Thunderstorm Watch	SPC	Dodge, Faribault, Fillmore, Freeborn, Houston, Martin and 5 more	6 hr
Jun 4, 1:59 PM CDT	Mesoscale Discussion	SPC	Bennett, Jackson	2 hr
Jun 4, 3:33 PM CDT	Mesoscale Discussion	SPC	Beadle, Brown, Clark, Day, Edmunds, Faulk and 5 more	117 min

Nearby

Mesoscale Discussions in Minnesota, 2019 Mesoscale Discussions in South Dakota, 2019 Every mesoscale discussion in 2019

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.