Alert archive / North Dakota / Mesoscale Discussions in 2008

Mesoscale Discussion 1364

June 13, 20088 counties in Montana; 21 counties in North Dakota; 10 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 13, 2008, 4:33 PM MDT for 8 counties in Montana; 21 counties in North Dakota; 10 counties in South Dakota. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued: Jun 13, 2008, 4:33 PM MDT (22:33 UTC)
Expired: Jun 13, 2008, 6:00 PM MDT
In force: 87 min
Issued by: the Storm Prediction Center

All 39 counties

Dawson County, MT, Fallon County, MT, McCone County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Valley County, MT, Wibaux County, MT, Adams County, ND, Billings County, ND, Bowman County, ND, Burleigh County, ND, Dickey County, ND, Dunn County, ND, Emmons County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, Kidder County, ND, Logan County, ND, McIntosh County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Oliver County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Brown County, SD, Campbell County, SD, Corson County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, McPherson County, SD, Perkins County, SD, Potter County, SD, Walworth County, SD

The radar

The Bismarck radar (KBIS), 207 km from the middle of the area, began a volume at 22:36 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

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 10.6 hours before the alert went out and 264 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: 1512 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 146 m²/s²
0-3 km storm-relative helicity: 217 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 12, 6:22 PM MDT	Mesoscale Discussion	SPC	Cass, Richland, Traill	83 min

Nearby

Mesoscale Discussions in North Dakota, 2008 Mesoscale Discussions in South Dakota, 2008 Mesoscale Discussions in Montana, 2008 Every mesoscale discussion in 2008

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.