Alert archive / South Dakota / Mesoscale Discussions in 2016
Mesoscale Discussion 1506
The Storm Prediction Center issued this mesoscale discussion at Aug 9, 2016, 8:51 PM MDT for 10 counties in North Dakota; 13 counties in South Dakota. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- Aug 9, 2016, 8:51 PM MDT (02:51 UTC)
- Expired
- Aug 9, 2016, 10:45 PM MDT
- In force
- 114 min
- Issued by
- the Storm Prediction Center
All 23 counties
Adams County, ND, Dickey County, ND, Emmons County, ND, Grant County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Ransom County, ND, Sargent County, ND, Sioux County, ND, Brown County, SD, Campbell County, SD, Corson County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, Marshall 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), 114 km from the middle of the area, began a volume at 02:50 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, 2.9 hours before the alert went out and 114 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
- 89 J/kg
- Mixed-layer CIN
- -314 J/kg
- Mixed-layer LCL
- 2100 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 6:30 PM MDT | Mesoscale Discussion | SPC | Adams, Bowman, Sioux | 2 hr |
| Aug 9, 9:19 PM MDT | Severe Thunderstorm Watch | SPC | Barnes, Cass, Dickey, Emmons, Kidder, LaMoure and 6 more | 8 hr |
| Aug 10, 12:05 AM MDT | Mesoscale Discussion | SPC | Dickey | 55 min |
| Aug 10, 10:19 AM MDT | Mesoscale Discussion | SPC | Cass, Dickey, LaMoure, McIntosh, Ransom, Richland and 1 more | 2 hr |
| Aug 10, 12:15 PM MDT | Severe Thunderstorm Watch | SPC | Cass, Dickey, Ransom, Richland, Sargent | 7 hr |
| Aug 10, 2:45 PM MDT | Mesoscale Discussion | SPC | Cass, Dickey, LaMoure, McIntosh, Ransom, Richland and 1 more | 2 hr |
| Aug 10, 2:53 PM MDT | Mesoscale Discussion | SPC | Billings, Divide, Golden Valley, McKenzie, Williams | 97 min |
| Aug 10, 4:59 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Benson, Billings, Bottineau, Burke, Burleigh and 31 more | 7 hr |
| Aug 10, 2:49 PM MDT | Mesoscale Discussion | SPC | Bennett, Dewey, Haakon, Hughes, Jackson, Jones and 7 more | 56 min |
| Aug 10, 4:18 PM MDT | Mesoscale Discussion | SPC | Bennett, Butte, Custer, Fall River, Harding, Jackson and 5 more | 57 min |
Nearby
Mesoscale Discussions in South Dakota, 2016Mesoscale Discussions in North Dakota, 2016Every mesoscale discussion in 2016
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.