Alert archive / Minnesota / Mesoscale Discussions in 2023
Mesoscale Discussion 2183
The Storm Prediction Center issued this mesoscale discussion at Sep 23, 2023, 2:10 PM CDT for Lyon County, Osceola County, Sioux County, Iowa; 22 counties in Minnesota; 13 counties in South Dakota. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 23, 2023, 2:10 PM CDT (19:10 UTC)
- Expired
- Sep 23, 2023, 4:45 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch possible
- Chance of a watch
- 60%
All 38 counties
Lyon County, IA, Osceola County, IA, Sioux County, IA, Big Stone County, MN, Brown County, MN, Chippewa County, MN, Cottonwood County, MN, Jackson 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, Swift County, MN, Watonwan County, MN, Yellow Medicine County, MN, Brookings County, SD, Clay County, SD, Codington County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD
The radar
The Sioux Falls radar (KFSD), 90 km from the middle of the area, began a volume at 19:12 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
Minneapolis, MN (KMPX), launched 12:00Z, 7.2 hours before the alert went out and 198 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
- 75 J/kg
- Mixed-layer CIN
- -165 J/kg
- Mixed-layer LCL
- 612 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 19 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 |
|---|---|---|---|---|
| Sep 23, 9:37 AM CDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Harrison, Ida, Monona, Plymouth and 4 more | 113 min |
| Sep 23, 1:09 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Buena Vista, Butler, Calhoun and 28 more | 96 min |
| Sep 23, 1:34 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Black Hawk, Boone, Bremer, Butler and 34 more | 8 hr |
| Sep 23, 3:39 PM CDT | Mesoscale Discussion | SPC | Black Hawk, Boone, Bremer, Butler, Cerro Gordo, Chickasaw and 20 more | 96 min |
| Sep 23, 4:58 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Fremont, Harrison, Mills and 5 more | 2 hr |
| Sep 23, 6:23 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Buena Vista, Butler, Calhoun, Carroll and 30 more | 2 hr |
| Sep 23, 2:27 AM CDT | Mesoscale Discussion | SPC | Todd | 3 hr |
Nearby
Mesoscale Discussions in Minnesota, 2023Mesoscale Discussions in South Dakota, 2023Mesoscale Discussions in Iowa, 2023Every mesoscale discussion in 2023
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.