Alert archive / North Dakota / Mesoscale Discussions in 2014

Mesoscale Discussion 1456

July 24, 201415 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 24, 2014, 5:47 AM MDT for 15 counties in North Dakota. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued: Jul 24, 2014, 5:47 AM MDT (11:47 UTC)
Expired: Jul 24, 2014, 7:45 AM MDT
In force: 118 min
Issued by: the Storm Prediction Center

Counties Billings County, ND, Bottineau County, ND, Burke County, ND, Burleigh County, ND, Dunn 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, Stark County, ND, Ward County, ND

The radar

The Minot AFB radar (KMBX), 112 km from the middle of the area, began a volume at 11:51 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, 11.8 hours before the alert went out and 172 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: 10 J/kg
Mixed-layer CIN: -414 J/kg
Mixed-layer LCL: 1727 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 80 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
Jul 24, 1:41 AM MDT	Mesoscale Discussion	SPC	Burke, Divide, McHenry, McKenzie, McLean, Mountrail and 3 more	2 hr
Jul 24, 2:27 AM MDT	Severe Thunderstorm Watch	SPC	Billings, Bottineau, Burke, Burleigh, Divide, Dunn and 13 more	6 hr
Jul 24, 10:06 AM MDT	Mesoscale Discussion	SPC	Dickey, Richland, Sargent	84 min
Jul 24, 1:50 PM MDT	Mesoscale Discussion	SPC	Divide, McKenzie, Williams	55 min
Jul 24, 2:54 PM MDT	Severe Thunderstorm Watch	SPC	Adams, Billings, Bowman, Burke, Divide, Dunn and 7 more	6 hr
Jul 24, 3:07 PM MDT	Mesoscale Discussion	SPC	Bowman, Slope	53 min
Jul 24, 4:53 PM MDT	Mesoscale Discussion	SPC	Adams, Billings, Bowman, Burke, Divide, Dunn and 8 more	97 min

Nearby

Mesoscale Discussions in North Dakota, 2014 Every mesoscale discussion in 2014

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.