Alert archive / Wisconsin / Mesoscale Discussions in 2015
Mesoscale Discussion 1387
The Storm Prediction Center issued this mesoscale discussion at Jul 13, 2015, 2:00 AM CDT for 4 counties in Iowa; Houston County, Minnesota; 10 counties in Wisconsin. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 13, 2015, 2:00 AM CDT (07:00 UTC)
- Expired
- Jul 13, 2015, 4:00 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
Counties Allamakee County, IA, Clayton County, IA, Fayette County, IA, Winneshiek County, IA, Houston County, MN, Adams County, WI, Crawford County, WI, Grant County, WI, Juneau County, WI, La Crosse County, WI, Monroe County, WI, Richland County, WI, Sauk County, WI, Vernon County, WI, Wood County, WI
The radar
The La Crosse radar (KARX), 32 km from the middle of the area, began a volume at 06:59 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
Davenport, (KDVN), launched 00:00Z, 7.0 hours before the alert went out and 225 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
- 3323 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 881 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 9.7
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 12, 7:51 PM CDT | Mesoscale Discussion | SPC | Dickinson, Emmet, Kossuth, Winnebago | 114 min |
| Jul 12, 9:03 PM CDT | Mesoscale Discussion | SPC | Allamakee, Chickasaw, Howard, Winneshiek | 117 min |
| Jul 12, 9:41 PM CDT | Mesoscale Discussion | SPC | Bremer, Butler, Cerro Gordo, Chickasaw, Floyd, Hancock and 4 more | 94 min |
| Jul 12, 9:59 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 7 more | 6 hr |
| Jul 12, 11:55 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 7 more | 95 min |
| Jul 13, 3:11 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee | 6 hr |
| Jul 13, 3:21 PM CDT | Mesoscale Discussion | SPC | Clinton | 84 min |
| Jul 13, 4:01 PM CDT | Tornado Watch | SPC | Cedar, Clinton, Des Moines, Dubuque, Jackson, Jones and 3 more | 7 hr |
| Jul 13, 6:59 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Des Moines, Dubuque, Jackson, Jones and 4 more | 91 min |
| Jul 12, 8:16 PM CDT | Mesoscale Discussion | SPC | Becker, Beltrami, Clay, Clearwater, Douglas, Grant and 13 more | 59 min |
| Jul 13, 1:51 PM CDT | Mesoscale Discussion | SPC | Anoka, Chisago, Dakota, Goodhue, Ramsey, Wabasha and 2 more | 84 min |
| Jul 13, 6:09 PM CDT | Mesoscale Discussion | SPC | Houston, Wabasha, Winona | 66 min |
| Jul 13, 3:49 AM CDT | Mesoscale Discussion | SPC | Kenosha, Rock, Walworth | 116 min |
| Jul 13, 4:14 AM CDT | Severe Thunderstorm Watch | SPC | Green, Jefferson, Kenosha, Lafayette, Milwaukee, Ozaukee and 5 more | 6 hr |
Nearby
Mesoscale Discussions in Wisconsin, 2015Mesoscale Discussions in Iowa, 2015Mesoscale Discussions in Minnesota, 2015Every mesoscale discussion in 2015
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.