Alert archive / Wisconsin / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 659
The Storm Prediction Center issued this severe thunderstorm watch at Aug 28, 2007, 12:15 PM CDT for 26 counties in Minnesota; 40 counties in Wisconsin. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 28, 2007, 12:15 PM CDT (17:15 UTC)
- Expired
- Aug 28, 2007, 8:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
All 66 counties
Blue Earth County, MN, Brown County, MN, Carver County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Houston County, MN, Le Sueur County, MN, Martin County, MN, Mower County, MN, Nicollet County, MN, Olmsted County, MN, Ramsey County, MN, Rice County, MN, Scott County, MN, Sibley County, MN, Steele County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Winona County, MN, Adams County, WI, Barron County, WI, Brown County, WI, Buffalo County, WI, Calumet County, WI, Chippewa County, WI, Clark County, WI, Door County, WI, Dunn County, WI, Eau Claire County, WI, Florence County, WI, Forest County, WI, Jackson County, WI, Juneau County, WI, Kewaunee County, WI, La Crosse County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Monroe County, WI, Oconto County, WI, Oneida County, WI, Outagamie County, WI, Pepin County, WI, Pierce County, WI, Portage County, WI, Price County, WI, Rusk County, WI, Saint Croix County, WI, Shawano County, WI, Taylor County, WI, Trempealeau County, WI, Vernon County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI
The radar
The Minneapolis radar (KMPX), 118 km from the middle of the area, began a volume at 17:15 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 40%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
16 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 1:09 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 40 min |
| Aug 28, 1:31 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 44 min |
| Aug 28, 1:44 PM CDT | Severe Thunderstorm Warning | ARX | Taylor | 61 min |
| Aug 28, 2:15 PM CDT | Severe Thunderstorm Warning | DLH | Price | 45 min |
| Aug 28, 2:29 PM CDT | Severe Thunderstorm Warning | ARX | Taylor | 46 min |
| Aug 28, 2:45 PM CDT | Severe Thunderstorm Warning | GRB | Lincoln, Marathon, Oneida | 60 min |
| Aug 28, 3:28 PM CDT | Severe Thunderstorm Warning | GRB | Langlade | 47 min |
| Aug 28, 3:51 PM CDT | Severe Thunderstorm Warning | GRB | Marathon | 24 min |
| Aug 28, 4:00 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Langlade | 45 min |
| Aug 28, 4:04 PM CDT | Severe Thunderstorm Warning | GRB | Menominee, Shawano | 56 min |
| Aug 28, 4:21 PM CDT | Severe Thunderstorm Warning | GRB | Oconto | 39 min |
| Aug 28, 4:29 PM CDT | Severe Thunderstorm Warning | GRB | Florence, Marinette | 46 min |
| Aug 28, 4:44 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 61 min |
| Aug 28, 5:29 PM CDT | Severe Thunderstorm Warning | GRB | Outagamie, Shawano, Waupaca | 33 min |
| Aug 28, 5:43 PM CDT | Severe Thunderstorm Warning | ARX | Houston | 32 min |
| Aug 28, 5:47 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 28 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 5.3 hours before the alert went out and 121 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
- 145 J/kg
- Mixed-layer CIN
- -363 J/kg
- Mixed-layer LCL
- 1160 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 3:24 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Emmet and 14 more | 66 min |
| Aug 28, 4:06 PM CDT | Mesoscale Discussion | SPC | Audubon, Boone, Butler, Calhoun, Carroll, Cerro Gordo and 22 more | 54 min |
| Aug 28, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | Audubon, Boone, Calhoun, Carroll, Cerro Gordo, Crawford and 17 more | 5 hr |
| Aug 28, 6:04 PM CDT | Mesoscale Discussion | SPC | Adair, Allamakee, Audubon, Black Hawk, Boone, Bremer and 23 more | 3 hr |
| Aug 27, 9:05 PM CDT | Mesoscale Discussion | SPC | Aitkin, Carlton, Crow Wing, Lake, Morrison, Pine | 55 min |
| Aug 27, 9:49 PM CDT | Mesoscale Discussion | SPC | Lincoln, Yellow Medicine | 86 min |
| Aug 28, 1:50 AM CDT | Mesoscale Discussion | SPC | Anoka, Carver, Chisago, Hennepin, Isanti, McLeod and 5 more | 55 min |
| Aug 28, 1:56 AM CDT | Severe Thunderstorm Watch | SPC | Anoka, Brown, Carver, Chisago, Dakota, Goodhue and 10 more | 3 hr |
| Aug 28, 11:58 AM CDT | Mesoscale Discussion | SPC | Dodge, Goodhue, Mower, Olmsted, Wabasha, Winona | 62 min |
| Aug 28, 3:48 AM CDT | Mesoscale Discussion | SPC | Chippewa, Clark, Dunn, Eau Claire, Forest, Langlade and 8 more | 87 min |
| Aug 28, 4:17 AM CDT | Severe Thunderstorm Watch | SPC | Clark, Door, Florence, Forest, Langlade, Lincoln and 7 more | 4 hr |
| Aug 28, 6:28 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calumet, Columbia, Crawford, Fond du Lac and 9 more | 62 min |
Nearby
Severe Thunderstorm Watches in Wisconsin, 2007Severe Thunderstorm Watches in Minnesota, 2007Every severe thunderstorm watch 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.