Alert archive / South Dakota / Mesoscale Discussions in 2007
Mesoscale Discussion 1419
The Storm Prediction Center issued this mesoscale discussion at Jul 8, 2007, 3:22 PM CDT for 4 states. It was in force for 83 min.
The area
The outline as issued.
The facts
- Issued
- Jul 8, 2007, 3:22 PM CDT (20:22 UTC)
- Expired
- Jul 8, 2007, 4:45 PM CDT
- In force
- 83 min
- Issued by
- the Storm Prediction Center
All 46 counties
Lyon County, IA, Osceola County, IA, Sioux County, IA, Brown County, MN, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Redwood County, MN, Rock County, MN, Antelope County, NE, Blaine County, NE, Boyd County, NE, Brown County, NE, Cedar County, NE, Garfield County, NE, Holt County, NE, Keya Paha County, NE, Knox County, NE, Loup County, NE, Pierce County, NE, Rock County, NE, Thomas County, NE, Wheeler County, NE, Bon Homme County, SD, Brookings County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Tripp County, SD, Turner County, SD, Union County, SD, Yankton County, SD
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.4 hours before the alert went out and 313 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
- 93 J/kg
- Mixed-layer CIN
- -717 J/kg
- Mixed-layer LCL
- 1928 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 89 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 |
|---|---|---|---|---|
| Jul 8, 6:40 PM CDT | Mesoscale Discussion | SPC | Emmet | 65 min |
| Jul 7, 9:42 PM CDT | Mesoscale Discussion | SPC | Kittson, Koochiching, Lake of the Woods, Marshall, Roseau | 93 min |
| Jul 8, 1:05 PM CDT | Mesoscale Discussion | SPC | Anoka, Benton, Carver, Chisago, Hennepin, Isanti and 11 more | 55 min |
| Jul 8, 1:28 PM CDT | Severe Thunderstorm Watch | SPC | Anoka, Blue Earth, Brown, Carver, Chisago, Dakota and 23 more | 8 hr |
| Jul 8, 4:00 PM CDT | Mesoscale Discussion | SPC | Anoka, Blue Earth, Carver, Chisago, Dakota, Dodge and 18 more | 60 min |
| Jul 8, 2:00 PM CDT | Mesoscale Discussion | SPC | Banner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 2 more | 90 min |
| Jul 8, 6:18 PM CDT | Mesoscale Discussion | SPC | Arthur, Chase, Cheyenne, Deuel, Dundy, Garden and 4 more | 57 min |
Nearby
Mesoscale Discussions in South Dakota, 2007Mesoscale Discussions in Nebraska, 2007Mesoscale Discussions in Minnesota, 2007Every mesoscale discussion in 2007
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.