Alert archive / North Dakota / Mesoscale Discussions in 2004

Mesoscale Discussion 1567

July 8, 200412 counties in North Dakota; Corson County, South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 8, 2004, 12:34 AM MDT for 12 counties in North Dakota; Corson County, South Dakota. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued: Jul 8, 2004, 12:34 AM MDT (06:34 UTC)
Expired: Jul 8, 2004, 2:00 AM MDT
In force: 86 min
Issued by: the Storm Prediction Center

Counties Adams County, ND, Billings County, ND, Burleigh County, ND, Dunn County, ND, Grant County, ND, Hettinger County, ND, Mercer County, ND, Morton County, ND, Oliver County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Corson County, SD

The radar

The Bismarck radar (KBIS), 102 km from the middle of the area, began a volume at 06:36 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, 6.6 hours before the alert went out and 107 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: 1643 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 240 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 7, 7:20 PM MDT	Mesoscale Discussion	SPC	Adams, Billings, Bowman, Burke, Divide, Dunn and 7 more	85 min
Jul 7, 8:10 PM MDT	Severe Thunderstorm Watch	SPC	Adams, Billings, Bowman, Golden Valley, Hettinger, Slope and 1 more	5 hr
Jul 8, 2:18 PM MDT	Mesoscale Discussion	SPC	Fall River	117 min
Jul 8, 2:40 PM MDT	Severe Thunderstorm Watch	SPC	Bennett, Custer, Fall River, Jackson, Oglala Lakota	6 hr
Jul 8, 5:35 PM MDT	Mesoscale Discussion	SPC	Bennett, Jackson	115 min

Nearby

Mesoscale Discussions in North Dakota, 2004 Mesoscale Discussions in South Dakota, 2004 Every mesoscale discussion in 2004

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.