Alert archive / North Dakota / Mesoscale Discussions in 2018

Mesoscale Discussion 700

June 10, 201819 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2018, 5:15 PM MDT for 19 counties in North Dakota. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jun 10, 2018, 5:15 PM MDT (23:15 UTC)
Expired: Jun 10, 2018, 7:15 PM MDT
In force: 2 hr
Issued by: the Storm Prediction Center

Counties Adams County, ND, Bottineau County, ND, Burke County, ND, Burleigh County, ND, Dunn County, ND, Emmons County, ND, Grant County, ND, Hettinger County, ND, McHenry County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Renville County, ND, Sheridan County, ND, Sioux County, ND, Stark County, ND, Ward County, ND

The radar

The Bismarck radar (KBIS), 134 km from the middle of the area, began a volume at 23:16 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, 11.3 hours before the alert went out and 138 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: 19 J/kg
Mixed-layer CIN: -776 J/kg
Mixed-layer LCL: 1552 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 243 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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
Jun 9, 6:35 PM MDT	Mesoscale Discussion	SPC	Bowman	85 min
Jun 10, 1:15 PM MDT	Mesoscale Discussion	SPC	Adams, Billings, Bottineau, Bowman, Burke, Burleigh and 15 more	2 hr
Jun 10, 2:37 PM MDT	Severe Thunderstorm Watch	SPC	Adams, Billings, Bottineau, Bowman, Burke, Burleigh and 19 more	7 hr

Nearby

Mesoscale Discussions in North Dakota, 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.