Alert archive / South Dakota / Mesoscale Discussions in 2020
Mesoscale Discussion 1114
The Storm Prediction Center issued this mesoscale discussion at Jul 5, 2020, 8:33 PM CDT for Wilkin County, Minnesota; 8 counties in North Dakota; 27 counties in South Dakota. It was in force for 117 min.
The area
The outline as issued.
The facts
- Issued
- Jul 5, 2020, 8:33 PM CDT (01:33 UTC)
- Expired
- Jul 5, 2020, 10:30 PM CDT
- In force
- 117 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 331
All 36 counties
Wilkin County, MN, Barnes County, ND, Cass County, ND, Dickey County, ND, LaMoure County, ND, McIntosh County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Aurora County, SD, Beadle County, SD, Brown County, SD, Brule County, SD, Buffalo County, SD, Clark County, SD, Codington County, SD, Davison County, SD, Day County, SD, Edmunds County, SD, Faulk County, SD, Hamlin County, SD, Hand County, SD, Hanson County, SD, Hughes County, SD, Hyde County, SD, Jerauld County, SD, Kingsbury County, SD, Marshall County, SD, McPherson County, SD, Miner County, SD, Potter County, SD, Roberts County, SD, Sanborn County, SD, Spink County, SD, Sully County, SD, Walworth County, SD
The radar
The Aberdeen radar (KABR), 36 km from the middle of the area, began a volume at 01:32 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
Aberdeen, SD (KABR), launched 00:00Z, 1.6 hours before the alert went out and 35 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
- 1093 J/kg
- Mixed-layer CIN
- -245 J/kg
- Mixed-layer LCL
- 1362 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 208 m²/s²
- 0-3 km storm-relative helicity
- 265 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Jul 6, 1:57 PM CDT | Mesoscale Discussion | SPC | Brown, Cottonwood, Jackson, Martin, Murray, Nobles and 3 more | 2 hr |
| Jul 5, 7:24 PM CDT | Mesoscale Discussion | SPC | Adams | 66 min |
| Jul 6, 2:50 PM CDT | Mesoscale Discussion | SPC | Adams, Bowman, Golden Valley, Slope | 115 min |
| Jul 6, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Bowman, Slope | 7 hr |
| Jul 6, 6:14 PM CDT | Mesoscale Discussion | SPC | Bowman | 91 min |
| Jul 5, 11:15 PM CDT | Mesoscale Discussion | SPC | Jones, Mellette, Perkins, Stanley, Todd, Ziebach | 60 min |
| Jul 6, 5:01 PM CDT | Mesoscale Discussion | SPC | Clay | 89 min |
Nearby
Mesoscale Discussions in South Dakota, 2020Mesoscale Discussions in North Dakota, 2020Mesoscale Discussions in Minnesota, 2020Every mesoscale discussion in 2020
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.