Alert archive / Wisconsin / Mesoscale Discussions in 2007
Mesoscale Discussion 1529
The Storm Prediction Center issued this mesoscale discussion at Jul 18, 2007, 6:44 PM CDT for Houston County, Winona County, Minnesota; 7 counties in Wisconsin. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 18, 2007, 6:44 PM CDT (23:44 UTC)
- Expired
- Jul 18, 2007, 8:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
Counties Houston County, MN, Winona County, MN, Adams County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Monroe County, WI, Trempealeau County, WI, Vernon County, WI
The radar
The La Crosse radar (KARX), 34 km from the middle of the area, began a volume at 23:47 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.7 hours before the alert went out and 226 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
- 1211 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 620 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
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 17, 9:31 PM CDT | Severe Thunderstorm Watch | SPC | Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more | 6 hr |
| Jul 17, 11:24 PM CDT | Mesoscale Discussion | SPC | Faribault, Freeborn, Jackson, Martin, Mower, Nobles and 1 more | 96 min |
| Jul 18, 3:35 AM CDT | Mesoscale Discussion | SPC | Dodge, Fillmore, Houston, Mower, Olmsted, Steele and 1 more | 85 min |
| Jul 18, 12:17 PM CDT | Mesoscale Discussion | SPC | Anoka, Chisago, Isanti, Ramsey, Washington | 118 min |
| Jul 18, 12:47 PM CDT | Mesoscale Discussion | SPC | Blue Earth, Cottonwood, Faribault, Fillmore, Freeborn, Houston and 10 more | 2 hr |
| Jul 18, 2:09 PM CDT | Severe Thunderstorm Watch | SPC | Faribault, Freeborn, Jackson, Martin, Mower, Nobles and 1 more | 4 hr |
| Jul 18, 3:42 PM CDT | Mesoscale Discussion | SPC | Anoka, Dakota, Goodhue, Hennepin, Olmsted, Ramsey and 4 more | 63 min |
| Jul 18, 3:59 PM CDT | Severe Thunderstorm Watch | SPC | Anoka, Carver, Dakota, Dodge, Fillmore, Goodhue and 14 more | 5 hr |
| Jul 18, 4:59 PM CDT | Mesoscale Discussion | SPC | Fillmore, Houston | 91 min |
| Jul 18, 1:37 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Calumet, Dodge, Door, Fond du Lac, Green Lake and 18 more | 7 hr |
| Jul 18, 5:35 PM CDT | Severe Thunderstorm Watch | SPC | Grant, Green, Lafayette, Rock | 6 hr |
| Jul 18, 5:46 PM CDT | Mesoscale Discussion | SPC | Brown, Calumet, Dodge, Fond du Lac, Green Lake, Manitowoc and 11 more | 119 min |
| Jul 18, 6:38 PM CDT | Mesoscale Discussion | SPC | Kenosha | 97 min |
| Jul 18, 6:50 PM CDT | Mesoscale Discussion | SPC | Grant, Green, Lafayette | 85 min |
Nearby
Mesoscale Discussions in Wisconsin, 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.