Alert archive / Iowa / Mesoscale Discussions in 2007
Mesoscale Discussion 2045
The Storm Prediction Center issued this mesoscale discussion at Sep 30, 2007, 3:36 PM CDT for 4 states. It was in force for 54 min.
The area
The outline as issued.
The facts
- Issued
- Sep 30, 2007, 3:36 PM CDT (20:36 UTC)
- Expired
- Sep 30, 2007, 4:30 PM CDT
- In force
- 54 min
- Issued by
- the Storm Prediction Center
All 32 counties
Cherokee County, IA, Crawford County, IA, Harrison County, IA, Ida County, IA, Lyon County, IA, Monona County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Shelby County, IA, Sioux County, IA, Woodbury County, IA, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Burt County, NE, Cedar County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE, Clay County, SD, Lincoln County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD, Union County, SD
The radar
The Sioux Falls radar (KFSD), 71 km from the middle of the area, began a volume at 20:37 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
Omaha, NE (KOAX), launched 12:00Z, 8.6 hours before the alert went out and 192 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
- 1296 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 450 m²/s²
- 0-3 km storm-relative helicity
- 472 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 |
|---|---|---|---|---|
| Sep 30, 10:13 AM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Calhoun, Carroll, Cass, Cerro Gordo and 19 more | 2 hr |
| Sep 30, 12:10 PM CDT | Mesoscale Discussion | SPC | Adams, Fremont, Mills, Montgomery, Page, Ringgold and 1 more | 65 min |
| Sep 30, 1:02 PM CDT | Tornado Watch | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 47 more | 7 hr |
| Sep 30, 2:26 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Decatur, Iowa, Jasper and 16 more | 64 min |
| Sep 30, 5:45 PM CDT | Mesoscale Discussion | SPC | Adair, Boone, Buena Vista, Calhoun, Carroll, Cherokee and 26 more | 60 min |
| Sep 29, 9:31 PM CDT | Mesoscale Discussion | SPC | Arthur, Blaine, Brown, Chase, Cherry, Custer and 16 more | 89 min |
| Sep 29, 10:38 PM CDT | Severe Thunderstorm Watch | SPC | Boyd, Buffalo, Dawson, Franklin, Furnas, Garfield and 10 more | 3 hr |
| Sep 30, 11:01 AM CDT | Mesoscale Discussion | SPC | Adams, Antelope, Boone, Boyd, Buffalo, Butler and 32 more | 59 min |
| Sep 29, 7:26 PM CDT | Mesoscale Discussion | SPC | Bennett, Brule, Buffalo, Edmunds, Faulk, Hand and 11 more | 64 min |
| Sep 29, 9:28 PM CDT | Severe Thunderstorm Watch | SPC | Aurora, Beadle, Bon Homme, Brookings, Brule, Buffalo and 14 more | 6 hr |
| Sep 30, 1:37 AM CDT | Mesoscale Discussion | SPC | Aurora, Beadle, Bon Homme, Brookings, Brule, Buffalo and 14 more | 53 min |
Nearby
Mesoscale Discussions in Iowa, 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; radar from the NEXRAD Level II archive.