Alert archive / Iowa / Mesoscale Discussions in 2017
Mesoscale Discussion 1347
The Storm Prediction Center issued this mesoscale discussion at Jul 19, 2017, 12:11 PM CDT for 26 counties in Iowa; 21 counties in Minnesota; 6 counties in South Dakota. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 19, 2017, 12:11 PM CDT (17:11 UTC)
- Expired
- Jul 19, 2017, 2:15 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 53 counties
Bremer County, IA, Buena Vista County, IA, Butler County, IA, Cerro Gordo County, IA, Cherokee County, IA, Chickasaw County, IA, Clay County, IA, Dickinson County, IA, Emmet County, IA, Floyd County, IA, Franklin County, IA, Hancock County, IA, Howard County, IA, Humboldt County, IA, Kossuth County, IA, Lyon County, IA, Mitchell County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Pocahontas County, IA, Sioux County, IA, Winnebago County, IA, Winneshiek County, IA, Worth County, IA, Wright County, IA, Blue Earth County, MN, Brown County, MN, Cottonwood County, MN, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Martin County, MN, Mower County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Pipestone County, MN, Redwood County, MN, Rock County, MN, Steele County, MN, Waseca County, MN, Watonwan County, MN, 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), 146 km from the middle of the area, began a volume at 17:13 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 5.2 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
- 1964 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 91 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 |
|---|---|---|---|---|
| Jul 19, 12:36 PM CDT | Severe Thunderstorm Watch | SPC | Bremer, Butler, Cerro Gordo, Clay, Dickinson, Emmet and 7 more | 5 hr |
| Jul 19, 2:38 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Howard, Winneshiek | 2 hr |
| Jul 19, 3:29 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 6 hr |
| Jul 19, 4:52 PM CDT | Severe Thunderstorm Watch | SPC | Lyon, Plymouth, Sioux, Woodbury | 6 hr |
| Jul 19, 5:11 PM CDT | Mesoscale Discussion | SPC | Buchanan, Clayton, Clinton, Delaware, Dubuque, Jackson and 1 more | 34 min |
| Jul 19, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | Buchanan, Cedar, Clinton, Delaware, Dubuque, Jackson and 3 more | 6 hr |
| Jul 19, 6:32 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 58 min |
| Jul 19, 9:55 AM CDT | Mesoscale Discussion | SPC | Lincoln, Lyon, Pipestone, Yellow Medicine | 2 hr |
| Jul 19, 9:59 AM CDT | Mesoscale Discussion | SPC | Kittson, Marshall, Pennington, Roseau | 3 hr |
| Jul 19, 1:13 PM CDT | Mesoscale Discussion | SPC | Blue Earth, Brown, Cottonwood, Jackson, Lincoln, Lyon and 5 more | 92 min |
| Jul 19, 2:46 PM CDT | Mesoscale Discussion | SPC | Blue Earth, Brown, Cottonwood, Faribault, Freeborn, Le Sueur and 5 more | 89 min |
| Jul 18, 7:58 PM CDT | Mesoscale Discussion | SPC | Bennett, Butte, Custer, Fall River, Haakon, Jackson and 4 more | 2 hr |
| Jul 19, 7:01 AM CDT | Mesoscale Discussion | SPC | Brown, Campbell, Corson, Day, Dewey, Edmunds and 13 more | 119 min |
| Jul 19, 10:24 AM CDT | Severe Thunderstorm Watch | SPC | Aurora, Beadle, Brookings, Clark, Codington, Davison and 15 more | 4 hr |
| Jul 19, 2:52 PM CDT | Mesoscale Discussion | SPC | Charles Mix, Douglas, Gregory, Mellette, Tripp | 83 min |
Nearby
Mesoscale Discussions in Iowa, 2017Mesoscale Discussions in Minnesota, 2017Mesoscale Discussions in South Dakota, 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.