Alert archive / North Dakota / Mesoscale Discussions in 2008
Mesoscale Discussion 1963
The Storm Prediction Center issued this mesoscale discussion at Jul 30, 2008, 2:39 PM MDT for Sheridan County, Wibaux County, Montana; 20 counties in North Dakota; 10 counties in South Dakota. It was in force for 66 min.
The area
The outline as issued.
The facts
- Issued
- Jul 30, 2008, 2:39 PM MDT (20:39 UTC)
- Expired
- Jul 30, 2008, 3:45 PM MDT
- In force
- 66 min
- Issued by
- the Storm Prediction Center
All 32 counties
Sheridan County, MT, Wibaux County, MT, Adams County, ND, Billings County, ND, Bowman County, ND, Burke County, ND, Divide County, ND, Dunn County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Williams County, ND, Butte County, SD, Corson County, SD, Dewey County, SD, Haakon County, SD, Harding County, SD, Meade County, SD, Pennington County, SD, Perkins County, SD, Stanley County, SD, Ziebach County, SD
The radar
The Bismarck radar (KBIS), 152 km from the middle of the area, began a volume at 20:40 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.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 8.7 hours before the alert went out and 156 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1615 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 30, 3:07 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Billings, Bottineau, Bowman, Burke, Burleigh and 20 more | 7 hr |
| Jul 30, 6:30 AM MDT | Mesoscale Discussion | SPC | Aurora, Beadle, Brule, Buffalo, Davison, Douglas and 14 more | 90 min |
| Jul 30, 4:18 PM MDT | Mesoscale Discussion | SPC | Brule, Buffalo, Gregory, Lyman, Mellette, Todd and 1 more | 87 min |
Nearby
Mesoscale Discussions in North Dakota, 2008Mesoscale Discussions in South Dakota, 2008Mesoscale Discussions in Montana, 2008Every mesoscale discussion in 2008
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.