Alert archive / North Dakota / Mesoscale Discussions in 2013
Mesoscale Discussion 1391
The Storm Prediction Center issued this mesoscale discussion at Jul 13, 2013, 7:37 PM MDT for 22 counties in North Dakota; 11 counties in South Dakota. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- Jul 13, 2013, 7:37 PM MDT (01:37 UTC)
- Expired
- Jul 13, 2013, 8:30 PM MDT
- In force
- 53 min
- Issued by
- the Storm Prediction Center
All 33 counties
Adams County, ND, Billings County, ND, Bottineau County, ND, Bowman County, ND, Burleigh County, ND, Dunn 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, Pierce County, ND, Renville County, ND, Rolette County, ND, Sheridan County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Butte County, SD, Corson County, SD, Custer County, SD, Dewey County, SD, Haakon County, SD, Harding County, SD, Lawrence County, SD, Meade County, SD, Pennington County, SD, Perkins County, SD, Ziebach County, SD
The radar
The Bismarck radar (KBIS), 147 km from the middle of the area, began a volume at 01:39 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, 1.6 hours before the alert went out and 149 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.
- Mixed-layer CAPE
- 7 J/kg
- Mixed-layer CIN
- -214 J/kg
- Mixed-layer LCL
- 2287 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 6:57 PM MDT | Mesoscale Discussion | SPC | Benson, Cavalier, Eddy, Nelson, Ramsey, Towner and 1 more | 63 min |
| Jul 14, 12:39 AM MDT | Severe Thunderstorm Watch | SPC | Dickey, LaMoure, Logan, McIntosh, Ransom, Richland and 1 more | 5 hr |
| Jul 14, 4:14 AM MDT | Mesoscale Discussion | SPC | Dickey, LaMoure, McIntosh, Ransom, Richland, Sargent | 61 min |
| Jul 13, 10:29 PM MDT | Mesoscale Discussion | SPC | Aurora, Beadle, Bon Homme, Brookings, Brown, Brule and 32 more | 61 min |
| Jul 14, 12:18 AM MDT | Mesoscale Discussion | SPC | Brown, Campbell, Edmunds, Faulk, McPherson, Potter and 2 more | 57 min |
Nearby
Mesoscale Discussions in North Dakota, 2013Mesoscale Discussions in South Dakota, 2013Every mesoscale discussion in 2013
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.