Alert archive / South Dakota / Mesoscale Discussions in 2011
Mesoscale Discussion 1076
The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2011, 10:07 PM CDT for 8 counties in North Dakota; 18 counties in South Dakota. It was in force for 83 min.
The area
The outline as issued.
The facts
- Issued
- Jun 2, 2011, 10:07 PM CDT (03:07 UTC)
- Expired
- Jun 2, 2011, 11:30 PM CDT
- In force
- 83 min
- Issued by
- the Storm Prediction Center
All 26 counties
Dickey County, ND, Emmons County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Sioux County, ND, Stutsman 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, Jackson County, SD, Jones County, SD, Lyman County, SD, McPherson County, SD, Mellette County, SD, Potter County, SD, Stanley County, SD, Sully County, SD, Walworth County, SD, Ziebach County, SD
The radar
The Aberdeen radar (KABR), 163 km from the middle of the area, began a volume at 03:06 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 00:00Z, 3.1 hours before the alert went out and 168 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
- 2239 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1718 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.1
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 2, 7:22 PM CDT | Severe Thunderstorm Watch | SPC | Burleigh, Emmons, Grant, Kidder, Logan, McIntosh and 4 more | 8 hr |
| Jun 3, 1:11 AM CDT | Mesoscale Discussion | SPC | Barnes, Benson, Cavalier, Eddy, Foster, Grand Forks and 11 more | 94 min |
| Jun 3, 1:25 AM CDT | Severe Thunderstorm Watch | SPC | Barnes, Cass, Dickey, Eddy, Foster, Grand Forks and 12 more | 4 hr |
Nearby
Mesoscale Discussions in South Dakota, 2011Mesoscale Discussions in North Dakota, 2011Every mesoscale discussion in 2011
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.