Alert archive / Minnesota / Mesoscale Discussions in 2007

Mesoscale Discussion 1175

June 17, 200713 counties in Minnesota

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2007, 6:51 AM CDT for 13 counties in Minnesota. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued: Jun 17, 2007, 6:51 AM CDT (11:51 UTC)
Expired: Jun 17, 2007, 8:15 AM CDT
In force: 84 min
Issued by: the Storm Prediction Center

Counties Becker County, MN, Beltrami County, MN, Cass County, MN, Clay County, MN, Clearwater County, MN, Hubbard County, MN, Itasca County, MN, Koochiching County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Saint Louis County, MN, Wadena County, MN

The radar

The Duluth radar (KDLH), 197 km from the middle of the area, began a volume at 11:52 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

Aberdeen, SD (KABR), launched 00:00Z, 11.9 hours before the alert went out and 405 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: 65 J/kg
Mixed-layer CIN: -210 J/kg
Mixed-layer LCL: 1398 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 121 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 17, 2:49 AM CDT	Mesoscale Discussion	SPC	Becker, Clay, Clearwater, Mahnomen, Norman, Otter Tail and 4 more	86 min
Jun 17, 3:09 AM CDT	Tornado Watch	SPC	Becker, Clay, Otter Tail, Wilkin	6 hr
Jun 17, 4:08 PM CDT	Mesoscale Discussion	SPC	Becker, Beltrami, Cass, Clearwater, Hubbard, Kittson and 6 more	67 min
Jun 17, 4:18 PM CDT	Tornado Watch	SPC	Beltrami, Clearwater, Itasca, Kittson, Koochiching, Lake of the Woods and 8 more	8 hr
Jun 17, 5:13 PM CDT	Tornado Watch	SPC	Clay, Wilkin	7 hr

Nearby

Mesoscale Discussions in Minnesota, 2007 Every mesoscale discussion in 2007

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.