Alert archive / South Dakota / Mesoscale Discussions in 2006
Mesoscale Discussion 441
The Storm Prediction Center issued this mesoscale discussion at Apr 6, 2006, 2:02 PM CDT for 8 counties in Minnesota; Dickey County, McIntosh County, North Dakota; 37 counties in South Dakota. It was in force for 118 min.
The area
The outline as issued.
The facts
- Issued
- Apr 6, 2006, 2:02 PM CDT (19:02 UTC)
- Expired
- Apr 6, 2006, 4:00 PM CDT
- In force
- 118 min
- Issued by
- the Storm Prediction Center
All 47 counties
Big Stone County, MN, Lac qui Parle County, MN, Lincoln County, MN, Lyon County, MN, Pipestone County, MN, Stevens County, MN, Traverse County, MN, Yellow Medicine County, MN, Dickey County, ND, McIntosh County, ND, Beadle County, SD, Brookings County, SD, Brown County, SD, Buffalo County, SD, Campbell County, SD, Clark County, SD, Codington County, SD, Corson County, SD, Day County, SD, Deuel County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Haakon County, SD, Hamlin County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jerauld County, SD, Jones County, SD, Kingsbury County, SD, Lake County, SD, Lyman County, SD, Marshall County, SD, McPherson County, SD, Miner County, SD, Moody County, SD, Perkins County, SD, Potter County, SD, Roberts County, SD, Sanborn County, SD, Spink County, SD, Stanley County, SD, Sully County, SD, Walworth County, SD, Ziebach County, SD
The radar
The Aberdeen radar (KABR), 89 km from the middle of the area, began a volume at 19:04 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 12:00Z, 7.0 hours before the alert went out and 41 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 978 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
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 |
|---|---|---|---|---|
| Apr 6, 1:20 AM CDT | Mesoscale Discussion | SPC | Aurora, Beadle, Bennett, Bon Homme, Brule, Buffalo and 25 more | 85 min |
| Apr 6, 5:18 PM CDT | Tornado Watch | SPC | Bon Homme, Charles Mix, Clay, Douglas, Gregory, Hutchinson and 3 more | 5 hr |
Nearby
Mesoscale Discussions in South Dakota, 2006Mesoscale Discussions in Minnesota, 2006Mesoscale Discussions in North Dakota, 2006Every mesoscale discussion in 2006
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.