Alert archive / Minnesota / Tornado Watches in 2010

Tornado Watch 472

July 14, 2010Gogebic County, Ontonagon County, Michigan; 32 counties in Minnesota; 19 counties in Wisconsin

The Storm Prediction Center issued this tornado watch at Jul 14, 2010, 9:00 AM CDT for Gogebic County, Ontonagon County, Michigan; 32 counties in Minnesota; 19 counties in Wisconsin. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued
Jul 14, 2010, 9:00 AM CDT (14:00 UTC)
Expired
Jul 14, 2010, 6:00 PM CDT
In force
9 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
60 kt
All 53 counties

Gogebic County, MI, Ontonagon County, MI, Anoka County, MN, Benton County, MN, Brown County, MN, Carlton County, MN, Carver County, MN, Chisago County, MN, Dakota County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Le Sueur County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Nicollet County, MN, Pine County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Saint Louis County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Waseca County, MN, Washington County, MN, Wright County, MN, Ashland County, WI, Barron County, WI, Bayfield County, WI, Burnett County, WI, Chippewa County, WI, Douglas County, WI, Dunn County, WI, Eau Claire County, WI, Iron County, WI, Oneida County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Price County, WI, Rusk County, WI, Saint Croix County, WI, Sawyer County, WI, Vilas County, WI, Washburn County, WI

The radar

The Minneapolis radar (KMPX), 63 km from the middle of the area, began a volume at 14:01 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
50%
One or more EF2 to EF5 tornadoes
30%
Ten or more severe wind reports
30%
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

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

IssuedProductOfficeCountiesLasted
Jul 14, 9:27 AM CDTSevere Thunderstorm WarningDLHCarlton, Lake, Pine, Saint Louis48 min
Jul 14, 10:10 AM CDTSevere Thunderstorm WarningDLHAshland, Bayfield, Burnett, Douglas, Sawyer, Washburn65 min
Jul 14, 10:23 AM CDTSevere Thunderstorm WarningMPXBarron, Polk52 min
Jul 14, 10:42 AM CDTTornado WarningMPXBarron, Polk33 min
Jul 14, 11:08 AM CDTSevere Thunderstorm WarningDLHAshland, Bayfield, Iron, Price, Sawyer, Washburn67 min
Jul 14, 11:10 AM CDTSevere Thunderstorm WarningMPXBarron, Rusk65 min
Jul 14, 11:18 AM CDTSevere Thunderstorm WarningMPXChippewa, Dunn57 min
Jul 14, 11:45 AM CDTSevere Thunderstorm WarningGRBLincoln, Oneida, Vilas45 min
Jul 14, 11:59 AM CDTSevere Thunderstorm WarningMQTGogebic61 min
Jul 14, 12:12 PM CDTSevere Thunderstorm WarningMPXChippewa, Rusk63 min
Jul 14, 12:13 PM CDTSevere Thunderstorm WarningDLHPrice25 min
Jul 14, 12:29 PM CDTSevere Thunderstorm WarningGRBLincoln, Oneida, Vilas46 min
Jul 14, 1:43 PM CDTSevere Thunderstorm WarningMPXChisago47 min
Jul 14, 2:11 PM CDTSevere Thunderstorm WarningMPXDakota, Scott49 min
Jul 14, 2:23 PM CDTSevere Thunderstorm WarningMPXBarron, Polk67 min
Jul 14, 2:27 PM CDTSevere Thunderstorm WarningMPXGoodhue, Rice63 min
Jul 14, 2:27 PM CDTSevere Thunderstorm WarningMPXDouglas, Morrison, Pope, Stearns, Todd63 min
Jul 14, 2:30 PM CDTTornado WarningMPXDakota, Goodhue35 min
Jul 14, 2:33 PM CDTSevere Thunderstorm WarningMPXWashington44 min
Jul 14, 2:46 PM CDTTornado WarningMPXDunn, Pierce, Saint Croix44 min
Jul 14, 2:54 PM CDTTornado WarningMPXMorrison, Pope, Stearns, Todd51 min
Jul 14, 2:55 PM CDTSevere Thunderstorm WarningMPXGoodhue65 min
Jul 14, 3:09 PM CDTSevere Thunderstorm WarningDLHAshland, Iron, Price, Sawyer51 min
Jul 14, 3:12 PM CDTSevere Thunderstorm WarningMPXChippewa, Dunn, Eau Claire, Pepin63 min
Jul 14, 3:31 PM CDTSevere Thunderstorm WarningMQTGogebic44 min
Jul 14, 3:44 PM CDTSevere Thunderstorm WarningMPXBenton, Stearns42 min
Jul 14, 3:52 PM CDTTornado WarningMPXBenton, Stearns23 min
Jul 14, 3:52 PM CDTSevere Thunderstorm WarningMPXChippewa, Eau Claire53 min
Jul 14, 4:02 PM CDTSevere Thunderstorm WarningDLHPrice, Sawyer58 min
Jul 14, 4:13 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Meeker, Stearns62 min
Jul 14, 4:18 PM CDTFlash Flood WarningDLHPrice, Sawyer117 min
Jul 14, 4:31 PM CDTSevere Thunderstorm WarningGRBLincoln, Marathon, Oneida59 min
Jul 14, 4:57 PM CDTSevere Thunderstorm WarningDLHPrice33 min
Jul 14, 5:26 PM CDTSevere Thunderstorm WarningGRBForest, Langlade, Lincoln, Marathon, Oneida, Shawano64 min
Jul 14, 5:53 PM CDTSevere Thunderstorm WarningDLHPine67 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, 2.0 hours before the alert went out and 65 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2010-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2915 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2010-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 282 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
2915 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
616 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
282 m²/s²
0-3 km storm-relative helicity
379 m²/s²
Significant tornado parameter
0.0
Supercell composite
16.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 14, 11:43 AM CDTTornado WatchSPCBaraga, Delta, Dickinson, Gogebic, Houghton, Iron and 3 more7 hr
Jul 14, 5:57 PM CDTMesoscale DiscussionSPCMason, Oceana93 min
Jul 13, 10:58 PM CDTSevere Thunderstorm WatchSPCKittson, Marshall, Pennington, Polk, Red Lake, Roseau7 hr
Jul 14, 1:02 AM CDTTornado WatchSPCTraverse6 hr
Jul 14, 3:00 AM CDTMesoscale DiscussionSPCBecker, Big Stone, Clay, Clearwater, Douglas, Grant and 14 more90 min
Jul 14, 3:50 AM CDTTornado WatchSPCAitkin, Becker, Beltrami, Benton, Cass, Clay and 15 more5 hr
Jul 14, 6:19 AM CDTMesoscale DiscussionSPCAitkin, Becker, Beltrami, Benton, Carlton, Cass and 13 more86 min
Jul 14, 8:26 AM CDTMesoscale DiscussionSPCAnoka, Benton, Brown, Carlton, Carver, Chisago and 21 more64 min
Jul 14, 10:29 AM CDTMesoscale DiscussionSPCFillmore, Freeborn, Houston, Mower, Olmsted, Winona2 hr
Jul 14, 12:34 PM CDTMesoscale DiscussionSPCAnoka, Carver, Chisago, Dakota, Goodhue, Hennepin and 9 more116 min
Jul 14, 2:26 PM CDTMesoscale DiscussionSPCFaribault, Freeborn94 min
Jul 14, 2:54 PM CDTMesoscale DiscussionSPCFillmore, Houston, Olmsted, Wabasha, Winona96 min
Jul 14, 3:33 PM CDTMesoscale DiscussionSPCAitkin, Benton, Crow Wing, Itasca, Kanabec, Kandiyohi and 5 more87 min
Jul 14, 3:53 PM CDTSevere Thunderstorm WatchSPCAitkin, Benton, Carlton, Chisago, Cook, Crow Wing and 11 more5 hr
Jul 14, 4:38 PM CDTSevere Thunderstorm WatchSPCAnoka, Blue Earth, Brown, Carver, Cottonwood, Dakota and 21 more5 hr
Jul 14, 6:53 PM CDTTornado WatchSPCDodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more8 hr

Nearby

Tornado Watches in Minnesota, 2010Tornado Watches in Wisconsin, 2010Tornado Watches in Michigan, 2010Every 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.