Alert archive / North Dakota / Mesoscale Discussions in 2015

Mesoscale Discussion 865

June 2, 201514 counties in North Dakota; Campbell County, McPherson County, South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2015, 6:22 PM CDT for 14 counties in North Dakota; Campbell County, McPherson County, South Dakota. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued: Jun 2, 2015, 6:22 PM CDT (23:22 UTC)
Expired: Jun 2, 2015, 8:15 PM CDT
In force: 113 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 247

Counties Barnes County, ND, Burleigh County, ND, Dickey County, ND, Emmons County, ND, Foster County, ND, Grant County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Morton County, ND, Oliver County, ND, Sioux County, ND, Stutsman County, ND, Campbell County, SD, McPherson County, SD

The radar

The Bismarck radar (KBIS), 62 km from the middle of the area, began a volume at 23:26 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

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.4 hours before the alert went out and 57 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: 1035 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -77 m²/s²
0-3 km storm-relative helicity: -68 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 2, 2:28 PM CDT	Mesoscale Discussion	SPC	Barnes, Cass, Dickey, Emmons, Kidder, LaMoure and 7 more	92 min
Jun 2, 2:46 PM CDT	Tornado Watch	SPC	Barnes, Burleigh, Dickey, Emmons, Foster, Grant and 10 more	7 hr
Jun 2, 1:37 PM CDT	Mesoscale Discussion	SPC	Fall River, Oglala Lakota	53 min
Jun 2, 3:44 PM CDT	Severe Thunderstorm Watch	SPC	Bennett, Custer, Fall River, Jackson, Lawrence, Meade and 3 more	7 hr
Jun 2, 6:27 PM CDT	Mesoscale Discussion	SPC	Bennett, Custer, Fall River, Jackson, Lawrence, Mellette and 3 more	2 hr

Nearby

Mesoscale Discussions in North Dakota, 2015 Mesoscale Discussions in South Dakota, 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.