Alert archive / North Dakota / Mesoscale Discussions in 2018

Mesoscale Discussion 1016

July 8, 201810 counties in Minnesota; 16 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 8, 2018, 2:35 AM CDT for 10 counties in Minnesota; 16 counties in North Dakota. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued: Jul 8, 2018, 2:35 AM CDT (07:35 UTC)
Expired: Jul 8, 2018, 4:00 AM CDT
In force: 85 min
Issued by: the Storm Prediction Center

All 26 counties

Beltrami County, MN, Clearwater County, MN, Kittson County, MN, Lake of the Woods County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Barnes County, ND, Cass County, ND, Eddy County, ND, Foster County, ND, Grand Forks County, ND, Griggs County, ND, Kidder County, ND, Nelson County, ND, Pembina County, ND, Ramsey County, ND, Sheridan County, ND, Steele County, ND, Stutsman County, ND, Traill County, ND, Walsh County, ND, Wells County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 32 km from the middle of the area, began a volume at 07:35 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 265Jul 8, 3:10 AM CDT

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 7.6 hours before the alert went out and 272 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: 2704 J/kg
Mixed-layer CIN: -145 J/kg
Mixed-layer LCL: 1745 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.6

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 8, 3:14 AM CDT	Severe Thunderstorm Watch	SPC	Beltrami, Clearwater, Kittson, Lake of the Woods, Marshall, Pennington and 3 more	5 hr
Jul 8, 5:30 AM CDT	Mesoscale Discussion	SPC	Beltrami, Clearwater, Itasca, Kittson, Koochiching, Lake of the Woods and 5 more	90 min
Jul 8, 6:59 AM CDT	Severe Thunderstorm Watch	SPC	Cook, Itasca, Koochiching, Lake, Saint Louis	4 hr
Jul 8, 9:23 AM CDT	Mesoscale Discussion	SPC	Cook, Lake, Saint Louis	97 min
Jul 8, 1:16 PM CDT	Mesoscale Discussion	SPC	Becker, Beltrami, Clay, Clearwater, Hubbard, Mahnomen and 4 more	2 hr
Jul 8, 3:52 PM CDT	Severe Thunderstorm Watch	SPC	Aitkin, Becker, Big Stone, Carlton, Cass, Clay and 15 more	7 hr
Jul 8, 5:46 PM CDT	Mesoscale Discussion	SPC	Aitkin, Becker, Benton, Big Stone, Carlton, Cass and 22 more	119 min
Jul 7, 8:55 PM CDT	Mesoscale Discussion	SPC	Adams, Bowman, Burleigh, Emmons, Foster, Grant and 8 more	65 min
Jul 7, 9:41 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Bowman, Burleigh, Dunn, Emmons, Foster and 14 more	7 hr
Jul 7, 11:44 PM CDT	Mesoscale Discussion	SPC	Adams, Barnes, Burleigh, Eddy, Emmons, Foster and 12 more	2 hr

Nearby

Mesoscale Discussions in North Dakota, 2018 Mesoscale Discussions in Minnesota, 2018 Every mesoscale discussion in 2018

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.