Alert archive / North Dakota / Mesoscale Discussions in 2004

Mesoscale Discussion 1082

June 4, 200416 counties in North Dakota; 12 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2004, 12:46 PM MDT for 16 counties in North Dakota; 12 counties in South Dakota. It was in force for 119 min.

The area

The outline as issued.

The facts

Issued: Jun 4, 2004, 12:46 PM MDT (18:46 UTC)
Expired: Jun 4, 2004, 2:45 PM MDT
In force: 119 min
Issued by: the Storm Prediction Center

All 28 counties

Adams County, ND, Burleigh County, ND, Dunn County, ND, Emmons County, ND, Grant County, ND, Hettinger County, ND, Kidder County, ND, Logan County, ND, McIntosh County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Oliver County, ND, Sheridan County, ND, Sioux County, ND, Stark County, ND, Campbell County, SD, Corson County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, Hyde County, SD, McPherson County, SD, Perkins County, SD, Potter County, SD, Sully County, SD, Walworth County, SD, Ziebach County, SD

The radar

The Bismarck radar (KBIS), 86 km from the middle of the area, began a volume at 18:47 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 397Jun 4, 2:30 PM MDT

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 6.8 hours before the alert went out and 88 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: 8 J/kg
Mixed-layer CIN: -389 J/kg
Mixed-layer LCL: 1537 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 147 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
Jun 4, 2:30 PM MDT	Severe Thunderstorm Watch	SPC	Emmons, Grant, Logan, Morton, Sioux	6 hr
Jun 4, 5:04 PM MDT	Mesoscale Discussion	SPC	Burleigh, Emmons, Logan, McIntosh, Sioux	116 min
Jun 4, 1:29 PM MDT	Mesoscale Discussion	SPC	Fall River	2 hr

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.