Alert archive / North Dakota / Mesoscale Discussions in 2016

Mesoscale Discussion 1243

July 11, 201613 counties in North Dakota; Campbell County, Corson County, McPherson County, South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 11, 2016, 1:32 AM CDT for 13 counties in North Dakota; Campbell County, Corson County, McPherson County, South Dakota. It was in force for 58 min.

The area

The outline as issued.

The facts

Issued: Jul 11, 2016, 1:32 AM CDT (06:32 UTC)
Expired: Jul 11, 2016, 2:30 AM CDT
In force: 58 min
Issued by: the Storm Prediction Center

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

The radar

The Bismarck radar (KBIS), 89 km from the middle of the area, began a volume at 06:35 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 00:00Z, 6.5 hours before the alert went out and 85 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: 1848 J/kg
Mixed-layer CIN: -98 J/kg
Mixed-layer LCL: 1509 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 265 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 10, 7:35 PM CDT	Mesoscale Discussion	SPC	Adams, Benson, Bottineau, Burleigh, Cavalier, Dunn and 28 more	55 min
Jul 10, 10:16 PM CDT	Mesoscale Discussion	SPC	Barnes, Benson, Burleigh, Cass, Dickey, Eddy and 20 more	89 min
Jul 10, 10:40 PM CDT	Severe Thunderstorm Watch	SPC	Barnes, Benson, Burleigh, Cass, Dickey, Eddy and 20 more	6 hr
Jul 11, 4:06 AM CDT	Mesoscale Discussion	SPC	Barnes, Cass, Dickey, Emmons, LaMoure, Logan and 6 more	84 min
Jul 11, 4:03 PM CDT	Mesoscale Discussion	SPC	Benson, Burleigh, Eddy, Emmons, Foster, Kidder and 6 more	117 min
Jul 10, 7:54 PM CDT	Mesoscale Discussion	SPC	Brule, Buffalo, Dewey, Faulk, Haakon, Hand and 12 more	96 min
Jul 11, 1:01 AM CDT	Mesoscale Discussion	SPC	Grant, Roberts	89 min
Jul 11, 3:16 PM CDT	Mesoscale Discussion	SPC	Clay, Lincoln, Minnehaha, Moody, Turner, Union and 1 more	119 min
Jul 11, 3:48 PM CDT	Severe Thunderstorm Watch	SPC	Clay, Lincoln, Minnehaha, Moody, Turner, Union and 1 more	7 hr

Nearby

Mesoscale Discussions in North Dakota, 2016 Mesoscale Discussions in South Dakota, 2016 Every mesoscale discussion in 2016

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.