Alert archive / Minnesota / Mesoscale Discussions in 2007

Mesoscale Discussion 1179

June 17, 200712 counties in Minnesota; 10 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2007, 4:08 PM CDT for 12 counties in Minnesota; 10 counties in North Dakota. It was in force for 67 min.

The area

The outline as issued.

The facts

Issued: Jun 17, 2007, 4:08 PM CDT (21:08 UTC)
Expired: Jun 17, 2007, 5:15 PM CDT
In force: 67 min
Issued by: the Storm Prediction Center

All 22 counties

Becker County, MN, Beltrami County, MN, Cass County, MN, Clearwater County, MN, Hubbard County, MN, Kittson County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Eddy County, ND, Foster County, ND, Grand Forks County, ND, Griggs County, ND, Nelson County, ND, Pembina County, ND, Ramsey County, ND, Steele County, ND, Traill County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 39 km from the middle of the area, began a volume at 21:11 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.

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 9.1 hours before the alert went out and 283 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: 1572 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 156 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 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, 6:51 AM CDT	Mesoscale Discussion	SPC	Becker, Beltrami, Cass, Clay, Clearwater, Hubbard and 7 more	84 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
Jun 16, 9:06 PM CDT	Mesoscale Discussion	SPC	Adams, Billings, Bowman, Dunn, Golden Valley, Hettinger and 3 more	54 min
Jun 16, 11:06 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Barnes, Benson, Billings, Bowman, Burleigh and 33 more	7 hr
Jun 17, 5:02 AM CDT	Mesoscale Discussion	SPC	Billings, Golden Valley, McKenzie, Williams	58 min
Jun 17, 5:40 AM CDT	Severe Thunderstorm Watch	SPC	Billings, Bottineau, Bowman, Burleigh, Dunn, Golden Valley and 14 more	3 hr
Jun 17, 4:44 PM CDT	Mesoscale Discussion	SPC	Burleigh, Dickey, Emmons, Foster, Kidder, LaMoure and 8 more	91 min

Nearby

Mesoscale Discussions in Minnesota, 2007 Mesoscale Discussions in North Dakota, 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.