Alert archive / Wisconsin / Tornado Watches in 2016

Tornado Watch 242

June 10, 20167 counties in Michigan; 23 counties in Wisconsin

The Storm Prediction Center issued this tornado watch at Jun 10, 2016, 3:44 PM EDT for 7 counties in Michigan; 23 counties in Wisconsin. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 10, 2016, 3:44 PM EDT (19:44 UTC)
Expired
Jun 10, 2016, 8:24 PM EDT
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 30 counties

Baraga County, MI, Dickinson County, MI, Gogebic County, MI, Houghton County, MI, Iron County, MI, Marquette County, MI, Ontonagon County, MI, Ashland County, WI, Barron County, WI, Chippewa County, WI, Clark County, WI, Dunn County, WI, Eau Claire County, WI, Florence County, WI, Forest County, WI, Iron County, WI, Langlade County, WI, Lincoln County, WI, Marathon County, WI, Oneida County, WI, Pepin County, WI, Pierce County, WI, Portage County, WI, Price County, WI, Rusk County, WI, Saint Croix County, WI, Sawyer County, WI, Taylor County, WI, Vilas County, WI, Wood County, WI

The radar

The Duluth radar (KDLH), 182 km from the middle of the area, began a volume at 19:48 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
30%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
70%
One or more gusts of 65 knots or more
10%
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
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 10, 3:55 PM EDTSevere Thunderstorm WarningMPXBarron, Chippewa, Rusk65 min
Jun 10, 4:30 PM EDTSevere Thunderstorm WarningMQTGogebic, Ontonagon45 min
Jun 10, 4:33 PM EDTSevere Thunderstorm WarningMPXDunn, Pepin, Pierce57 min
Jun 10, 4:36 PM EDTSevere Thunderstorm WarningDLHIron24 min
Jun 10, 4:37 PM EDTSevere Thunderstorm WarningGRBVilas38 min
Jun 10, 4:38 PM EDTSevere Thunderstorm WarningMPXChippewa, Dunn, Eau Claire52 min
Jun 10, 4:51 PM EDTSevere Thunderstorm WarningMQTGogebic, Iron, Ontonagon39 min
Jun 10, 4:51 PM EDTSevere Thunderstorm WarningGRBOneida54 min
Jun 10, 4:58 PM EDTSevere Thunderstorm WarningDLHPrice32 min
Jun 10, 4:59 PM EDTSevere Thunderstorm WarningMQTBaraga, Houghton, Ontonagon46 min
Jun 10, 5:01 PM EDTSevere Thunderstorm WarningMPXDunn, Eau Claire, Pepin29 min
Jun 10, 5:11 PM EDTSevere Thunderstorm WarningGRBVilas49 min
Jun 10, 5:16 PM EDTSevere Thunderstorm WarningGRBLincoln59 min
Jun 10, 5:22 PM EDTSevere Thunderstorm WarningGRBOneida32 min
Jun 10, 5:23 PM EDTSevere Thunderstorm WarningMPXChippewa, Eau Claire37 min
Jun 10, 5:29 PM EDTSevere Thunderstorm WarningMPXPepin31 min
Jun 10, 5:29 PM EDTSevere Thunderstorm WarningMPXDunn, Eau Claire, Pepin31 min
Jun 10, 5:44 PM EDTSevere Thunderstorm WarningMQTGogebic, Iron46 min
Jun 10, 5:45 PM EDTSevere Thunderstorm WarningGRBFlorence, Forest, Marinette, Oneida, Vilas45 min
Jun 10, 5:50 PM EDTSevere Thunderstorm WarningGRBLanglade, Lincoln40 min
Jun 10, 5:57 PM EDTSevere Thunderstorm WarningMPXPierce33 min
Jun 10, 5:59 PM EDTSevere Thunderstorm WarningARXClark61 min
Jun 10, 6:07 PM EDTSevere Thunderstorm WarningARXClark, Jackson68 min
Jun 10, 6:09 PM EDTSevere Thunderstorm WarningGRBForest, Langlade, Oconto66 min
Jun 10, 6:26 PM EDTSevere Thunderstorm WarningMQTDickinson, Iron, Marquette34 min
Jun 10, 6:28 PM EDTSevere Thunderstorm WarningGRBFlorence, Forest, Marinette47 min
Jun 10, 6:29 PM EDTSevere Thunderstorm WarningGRBLincoln12 min
Jun 10, 6:38 PM EDTSevere Thunderstorm WarningGRBMarathon, Wood51 min
Jun 10, 6:41 PM EDTSevere Thunderstorm WarningGRBLanglade, Marinette, Menominee, Oconto49 min
Jun 10, 6:51 PM EDTSevere Thunderstorm WarningGRBLanglade, Menominee, Shawano54 min
Jun 10, 7:08 PM EDTSevere Thunderstorm WarningGRBMarathon37 min
Jun 10, 7:21 PM EDTSevere Thunderstorm WarningGRBMarathon, Portage, Wood54 min
Jun 10, 7:43 PM EDTSevere Thunderstorm WarningGRBLanglade, Marathon, Menominee, Shawano47 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.7 hours before the alert went out and 237 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, Green Bay/Straub, WI at 12:00Z on 2016-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Green Bay/Straub, WI at 12:00Z on 2016-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 143 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
697 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
302 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted.

809 
WWUS20 KWNS 101941
SEL2  
SPC WW 101941
MIZ000-WIZ000-LSZ000-110200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 242
NWS STORM PREDICTION CENTER NORMAN OK
240 PM CDT FRI JUN 10 2016

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  WESTERN AND CENTRAL UPPER MICHIGAN
  NORTHERN AND WEST CENTRAL WISCONSIN
  LAKE SUPERIOR

* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 240 PM UNTIL
  900 PM CDT.

* PRIMARY THREATS INCLUDE...
  A COUPLE TORNADOES POSSIBLE
  SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY
  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
    INCHES IN DIAMETER POSSIBLE

SUMMARY...THUNDERSTORMS ARE EXPECTED TO CONTINUE DEVELOPING AND
INTENSIFY FROM NORTHWESTERN WISCONSIN INTO WEST-CENTRAL WISCONSIN
AND SPREAD EASTWARD THROUGH THE EVENING HOURS.  A FEW TORNADOES MAY
BE POSSIBLE WITH STRONGER STORMS...ALONG WITH A MORE WIDESPREAD
THREAT FOR DAMAGING WIND GUSTS AND HAIL.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE
MILES EAST AND WEST OF A LINE FROM 65 MILES EAST NORTHEAST OF
IRONWOOD MICHIGAN TO 20 MILES EAST OF EAU CLAIRE WISCONSIN.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU2).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

&&

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 27030.


...WEISS

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 10, 6:09 PM EDTMesoscale DiscussionSPCBaraga, Dickinson, Iron, Menominee2 hr
Jun 10, 6:41 PM EDTSevere Thunderstorm WatchSPCDelta, Menominee4 hr
Jun 10, 7:57 PM EDTMesoscale DiscussionSPCAllegan, Antrim, Barry, Benzie, Charlevoix, Clare and 22 more2 hr
Jun 9, 8:58 PM EDTMesoscale DiscussionSPCDane, Green, Iowa, Lafayette, Rock, Walworth2 hr
Jun 10, 1:02 PM EDTMesoscale DiscussionSPCAshland, Barron, Bayfield, Buffalo, Burnett, Chippewa and 16 more88 min
Jun 10, 3:54 PM EDTMesoscale DiscussionSPCAdams, Buffalo, Clark, Columbia, Crawford, Dane and 19 more96 min
Jun 10, 4:19 PM EDTSevere Thunderstorm WatchSPCAdams, Buffalo, Crawford, Jackson, Juneau, La Crosse and 4 more6 hr
Jun 10, 6:51 PM EDTMesoscale DiscussionSPCAdams, Buffalo, Crawford, Jackson, Juneau, La Crosse and 4 more114 min

Nearby

Tornado Watches in Wisconsin, 2016Tornado Watches in Michigan, 2016Every tornado watch in 2016

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.