Alert archive / South Dakota / Mesoscale Discussions in 2017
Mesoscale Discussion 1119
The Storm Prediction Center issued this mesoscale discussion at Jun 22, 2017, 3:11 AM CDT for 20 counties in Minnesota; 29 counties in South Dakota. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Jun 22, 2017, 3:11 AM CDT (08:11 UTC)
- Expired
- Jun 22, 2017, 4:15 AM CDT
- In force
- 64 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 49 counties
Blue Earth County, MN, Brown County, MN, Chippewa County, MN, Cottonwood County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Lincoln County, MN, Lyon County, MN, McLeod County, MN, Meeker County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Pipestone County, MN, Redwood County, MN, Renville County, MN, Rock County, MN, Sibley County, MN, Watonwan County, MN, Yellow Medicine County, MN, Aurora County, SD, Beadle County, SD, Brookings County, SD, Brule County, SD, Buffalo County, SD, Clark County, SD, Codington County, SD, Davison County, SD, Deuel County, SD, Douglas County, SD, Grant County, SD, Hamlin County, SD, Hand County, SD, Hanson County, SD, Hughes County, SD, Hutchinson County, SD, Hyde County, SD, Jerauld County, SD, Jones County, SD, Kingsbury County, SD, Lake County, SD, Lyman County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Spink County, SD, Tripp County, SD
The radar
The Sioux Falls radar (KFSD), 99 km from the middle of the area, began a volume at 08:12 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, 8.2 hours before the alert went out and 101 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
- 406 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 2235 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 |
|---|---|---|---|---|
| Jun 21, 7:25 PM CDT | Mesoscale Discussion | SPC | Becker, Beltrami, Big Stone, Cass, Chippewa, Clay and 23 more | 2 hr |
| Jun 21, 9:07 PM CDT | Mesoscale Discussion | SPC | Beltrami, Big Stone, Cass, Clearwater, Douglas, Grant and 5 more | 53 min |
| Jun 22, 9:28 AM CDT | Mesoscale Discussion | SPC | Blue Earth, Dodge, Faribault, Fillmore, Freeborn, Houston and 6 more | 92 min |
Nearby
Mesoscale Discussions in South Dakota, 2017Mesoscale Discussions in Minnesota, 2017Every mesoscale discussion in 2017
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.