Alert archive / Minnesota / Mesoscale Discussions in 2015

Mesoscale Discussion 919

June 6, 20159 counties in Minnesota

The Storm Prediction Center issued this mesoscale discussion at Jun 6, 2015, 10:24 PM CDT for 9 counties in Minnesota. It was in force for 66 min.

The area

The outline as issued.

The facts

Issued: Jun 6, 2015, 10:24 PM CDT (03:24 UTC)
Expired: Jun 6, 2015, 11:30 PM CDT
In force: 66 min
Issued by: the Storm Prediction Center

Counties Chippewa County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Meeker County, MN, Morrison County, MN, Pope County, MN, Stearns County, MN, Swift County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 145 km from the middle of the area, began a volume at 03:26 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 00:00Z, 3.4 hours before the alert went out and 143 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: 5 J/kg
Mixed-layer CIN: -186 J/kg
Mixed-layer LCL: 1354 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 150 m²/s²
0-3 km storm-relative helicity: 350 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 6, 7:44 PM CDT	Mesoscale Discussion	SPC	Becker, Big Stone, Chippewa, Clay, Douglas, Grant and 11 more	91 min
Jun 6, 8:11 PM CDT	Mesoscale Discussion	SPC	Nobles, Pipestone, Rock	64 min
Jun 6, 8:45 PM CDT	Tornado Watch	SPC	Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more	4 hr
Jun 6, 11:00 PM CDT	Mesoscale Discussion	SPC	Cottonwood, Jackson, Murray, Nobles, Pipestone, Rock	2 hr

Nearby

Mesoscale Discussions in Minnesota, 2015 Every mesoscale discussion in 2015

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.