Alert archive / North Dakota / Mesoscale Discussions in 2007
Mesoscale Discussion 1121
The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2007, 4:23 PM CDT for 20 counties in North Dakota; 19 counties in South Dakota. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2007, 4:23 PM CDT (21:23 UTC)
- Expired
- Jun 12, 2007, 6:30 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 39 counties
Benson County, ND, Bottineau County, ND, Burleigh County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Kidder County, ND, Logan County, ND, McHenry County, ND, McIntosh County, ND, Morton County, ND, Oliver County, ND, Pierce County, ND, Ramsey County, ND, Rolette County, ND, Sheridan County, ND, Sioux County, ND, Stutsman County, ND, Towner County, ND, Wells County, ND, Campbell County, SD, Corson County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, Haakon County, SD, Hughes County, SD, Hyde County, SD, Jones County, SD, Lyman County, SD, McPherson County, SD, Mellette County, SD, Potter County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD, Walworth County, SD, Ziebach County, SD
The radar
The Bismarck radar (KBIS), 87 km from the middle of the area, began a volume at 21:25 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 12:00Z, 9.4 hours before the alert went out and 86 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
- 746 J/kg
- Mixed-layer CIN
- -246 J/kg
- Mixed-layer LCL
- 871 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 70 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 |
|---|---|---|---|---|
| Jun 11, 9:13 PM CDT | Mesoscale Discussion | SPC | Bottineau, Burleigh, Dunn, McHenry, McLean, Mercer and 7 more | 92 min |
| Jun 11, 11:32 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Billings, Bowman, Burke, Divide, Dunn and 11 more | 5 hr |
| Jun 12, 3:03 AM CDT | Mesoscale Discussion | SPC | Adams, Billings, Bowman, Burke, Divide, Dunn and 11 more | 57 min |
| Jun 12, 12:40 PM CDT | Mesoscale Discussion | SPC | Adams, Benson, Burleigh, Dunn, Emmons, Grant and 15 more | 2 hr |
| Jun 12, 2:02 PM CDT | Tornado Watch | SPC | Benson, Bottineau, Burleigh, Cavalier, Dickey, Eddy and 22 more | 6 hr |
Nearby
Mesoscale Discussions in North Dakota, 2007Mesoscale Discussions in South Dakota, 2007Every mesoscale discussion in 2007
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.