Alert archive / Wisconsin / Tornado Watches in 2010

Tornado Watch 477

July 14, 20108 counties in Iowa; 7 counties in Minnesota; 34 counties in Wisconsin

The Storm Prediction Center issued this tornado watch at Jul 14, 2010, 6:53 PM CDT for 8 counties in Iowa; 7 counties in Minnesota; 34 counties in Wisconsin. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Jul 14, 2010, 6:53 PM CDT (23:53 UTC)
Expired: Jul 15, 2010, 3:00 AM CDT
In force: 8 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 49 counties

Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Dodge County, MN, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Adams County, WI, Brown County, WI, Calumet County, WI, Columbia County, WI, Crawford County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Grant County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Juneau County, WI, Kenosha County, WI, Kewaunee County, WI, La Crosse County, WI, Lafayette County, WI, Manitowoc County, WI, Marquette County, WI, Milwaukee County, WI, Monroe County, WI, Outagamie County, WI, Ozaukee County, WI, Racine County, WI, Richland County, WI, Rock County, WI, Sauk County, WI, Sheboygan County, WI, Vernon County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI, Winnebago County, WI

The radar

The Milwaukee radar (KMKX), 99 km from the middle of the area, began a volume at 23:56 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: 40%
One or more EF2 to EF5 tornadoes: 20%
Ten or more severe wind reports: 40%
One or more gusts of 65 knots or more: 30%
Ten or more severe hail reports: 40%
One or more hailstones of 2 inches or more: 30%
Six or more combined severe hail and wind reports: 80%

Warnings issued inside it

27 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jul 14, 6:58 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Calumet, Menominee, Oconto, Outagamie, Shawano and 2 more	47 min
Jul 14, 7:23 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Marquette, Sauk	37 min
Jul 14, 7:25 PM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac	80 min
Jul 14, 7:41 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Calumet, Kewaunee, Manitowoc	49 min
Jul 14, 7:50 PM CDT	Severe Thunderstorm Warning	ARX	Wabasha	55 min
Jul 14, 7:55 PM CDT	Severe Thunderstorm Warning	ARX	Dodge, Olmsted, Wabasha	50 min
Jul 14, 8:00 PM CDT	Severe Thunderstorm Warning	ARX	Mower	60 min
Jul 14, 8:00 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dodge, Fond du Lac, Green Lake	45 min
Jul 14, 8:41 PM CDT	Severe Thunderstorm Warning	ARX	Fillmore, Mower, Olmsted, Winona	49 min
Jul 14, 9:23 PM CDT	Severe Thunderstorm Warning	ARX	Fillmore, Houston, Winona	37 min
Jul 14, 9:49 PM CDT	Severe Thunderstorm Warning	ARX	La Crosse, Monroe, Vernon	26 min
Jul 14, 10:01 PM CDT	Flash Flood Warning	ARX	Jackson, Juneau, Monroe	4 hr
Jul 14, 10:38 PM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau, Richland, Vernon	22 min
Jul 14, 10:44 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Green Lake, Marquette, Sauk	61 min
Jul 14, 11:25 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Dane	50 min
Jul 14, 11:32 PM CDT	Flash Flood Warning	GRB	Calumet, Outagamie, Winnebago	5 hr
Jul 14, 11:34 PM CDT	Severe Thunderstorm Warning	ARX	Richland, Vernon	41 min
Jul 14, 11:39 PM CDT	Severe Thunderstorm Warning	MKX	Dodge, Fond du Lac, Green Lake	51 min
Jul 14, 11:45 PM CDT	Flash Flood Warning	MKX	Columbia, Sauk	3 hr
Jul 14, 11:49 PM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau, Richland, Vernon	56 min
Jul 14, 11:53 PM CDT	Severe Thunderstorm Warning	MKX	Columbia, Sauk	52 min
Jul 14, 11:54 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Calumet, Manitowoc, Outagamie, Winnebago	41 min
Jul 15, 12:11 AM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac, Ozaukee, Sheboygan, Washington	64 min
Jul 15, 12:23 AM CDT	Severe Thunderstorm Warning	MKX	Jefferson, Milwaukee, Waukesha	52 min
Jul 15, 12:28 AM CDT	Severe Thunderstorm Warning	GRB	Kewaunee, Manitowoc	32 min
Jul 15, 1:00 AM CDT	Flash Flood Warning	MKX	Columbia	3 hr
Jul 15, 1:31 AM CDT	Flash Flood Warning	MKX	Milwaukee, Waukesha	3 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.9 hours before the alert went out and 134 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1516 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 14, 10:29 AM CDT	Mesoscale Discussion	SPC	Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 6 more	2 hr
Jul 14, 11:43 AM CDT	Tornado Watch	SPC	Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more	7 hr
Jul 14, 2:26 PM CDT	Mesoscale Discussion	SPC	Calhoun, Cerro Gordo, Franklin, Hamilton, Hancock, Humboldt and 5 more	94 min
Jul 14, 2:30 PM CDT	Mesoscale Discussion	SPC	Adams, Audubon, Cass, Crawford, Fremont, Harrison and 7 more	90 min
Jul 14, 4:38 PM CDT	Severe Thunderstorm Watch	SPC	Audubon, Buena Vista, Calhoun, Carroll, Cerro Gordo, Cherokee and 21 more	5 hr
Jul 14, 4:52 PM CDT	Severe Thunderstorm Watch	SPC	Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more	6 hr
Jul 13, 10:58 PM CDT	Severe Thunderstorm Watch	SPC	Kittson, Marshall, Pennington, Polk, Red Lake, Roseau	7 hr
Jul 14, 1:02 AM CDT	Tornado Watch	SPC	Traverse	6 hr
Jul 14, 3:00 AM CDT	Mesoscale Discussion	SPC	Becker, Big Stone, Clay, Clearwater, Douglas, Grant and 14 more	90 min
Jul 14, 3:50 AM CDT	Tornado Watch	SPC	Aitkin, Becker, Beltrami, Benton, Cass, Clay and 15 more	5 hr
Jul 14, 6:19 AM CDT	Mesoscale Discussion	SPC	Aitkin, Becker, Beltrami, Benton, Carlton, Cass and 13 more	86 min
Jul 14, 8:26 AM CDT	Mesoscale Discussion	SPC	Anoka, Benton, Brown, Carlton, Carver, Chisago and 21 more	64 min
Jul 14, 9:00 AM CDT	Tornado Watch	SPC	Anoka, Benton, Brown, Carlton, Carver, Chisago and 26 more	9 hr
Jul 14, 12:34 PM CDT	Mesoscale Discussion	SPC	Anoka, Carver, Chisago, Dakota, Goodhue, Hennepin and 9 more	116 min
Jul 14, 2:54 PM CDT	Mesoscale Discussion	SPC	Fillmore, Houston, Olmsted, Wabasha, Winona	96 min
Jul 14, 3:33 PM CDT	Mesoscale Discussion	SPC	Aitkin, Benton, Crow Wing, Itasca, Kanabec, Kandiyohi and 5 more	87 min
Jul 14, 3:53 PM CDT	Severe Thunderstorm Watch	SPC	Aitkin, Benton, Carlton, Chisago, Cook, Crow Wing and 11 more	5 hr
Jul 14, 5:57 PM CDT	Mesoscale Discussion	SPC	Brown, Calumet, Columbia, Dane, Dodge, Door and 26 more	93 min

Nearby

Tornado Watches in Wisconsin, 2010 Tornado Watches in Iowa, 2010 Tornado Watches in Minnesota, 2010 Every tornado watch in 2010

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.