Overview
A line of severe thunderstorms moved across central and southern WI. A frontal boundary was positioned west to east across south-central WI. A very unstable air mass and fast winds aloft allowed thunderstorms to quickly move eastward along this boundary. The thunderstorms evolved into a bowing line segment as they moved across south-central WI. This is called a bow echo, and is associated with very strong straight line winds. Numerous trees were down across this area.
Numerous people witnessed a waterspout/tornado over Kettle Moraine Lake in southeast Fond du Lac County (between Eden and Campbellsport) just after 7 pm. A storm damage survey revealed EF-0 tornado damage with up to 80 mph winds. There was minor damage to trees and a couple of marine structures.
Very heavy rain fell over areas north of Fond du Lac where they received over 1.5 inches of rain. Another area hit with heavy rain was near Sauk City.
Storm Report Graphic:
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Radar:
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Storm Report List
PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 307 PM CDT TUE JUN 13 2017 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0716 PM TORNADO 5 NE CAMPBELLSPORT 43.65N 88.20W 06/12/2017 FOND DU LAC WI EMERGENCY MNGR STORM SURVEY REVEALED EF-0 WIND DAMAGE WITH PEAK WIND 80 MPH. THERE WERE NUMEROUS EYEWITNESSES OF A WATERSPOUT/TORNADO IN THE KETTLE MORAINE LAKE AREA. TIME ESTIMATED FROM RADAR.
PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1041 PM CDT MON JUN 12 2017 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0650 PM TSTM WND GST BRANDON 43.74N 88.77W 06/12/2017 E70 MPH FOND DU LAC WI LAW ENFORCEMENT ESTIMATED 70 MPH WINDS. FALLING TREES. 0730 PM TSTM WND GST 1 ESE SHEBOYGAN 43.75N 87.69W 06/12/2017 M43 MPH LMZ643 WI C-MAN STATION C_MAN STATION SGNW3 SHEBOYGAN LAKESHORE. TIME ESTIMATED FROM RADAR. 0836 PM TSTM WND GST 2 E RACINE 42.73N 87.74W 06/12/2017 M59 MPH LMZ646 WI MESONET MEASURED AT RACINE REEF AUTOMATED SENSOR. 0701 PM TSTM WND GST 1 ENE JUNEAU 43.41N 88.69W 06/12/2017 E60 MPH DODGE WI AMATEUR RADIO 0.2 MILES EAST OF JUNEAU ESTIMATED 60 MPH WINDS. 0706 PM TSTM WND DMG LOMIRA 43.59N 88.45W 06/12/2017 DODGE WI PUBLIC 6 INCH DIAMETER TREE LIMB DOWN. 0724 PM TSTM WND DMG 5 NW HORICON 43.51N 88.70W 06/12/2017 DODGE WI AMATEUR RADIO DOWNED POWER LINES 1.4 MILES SOUTHEAST OF BURNETT. 0707 PM TSTM WND GST 1 NE WATERTOWN 43.20N 88.72W 06/12/2017 E50 MPH DODGE WI AMATEUR RADIO 0.3 MILES EAST OF WATERTOWN ESTIMATED 50 MPH WINDS. 0728 PM TSTM WND GST 3 NW KEKOSKEE 43.56N 88.60W 06/12/2017 M61 MPH DODGE WI MESONET MEASURED 61 MPH AT MAYVILLE/HORICON MARSH RAWS SITE. 0725 PM TSTM WND DMG 1 E MAYVILLE 43.50N 88.53W 06/12/2017 DODGE WI AMATEUR RADIO POWER IS OUT 0.3 MILES EAST OF MAYVILLE. 0646 PM TSTM WND GST RANDOLPH 43.54N 89.00W 06/12/2017 E60 MPH DODGE WI AMATEUR RADIO 0.5 MILES EAST OF RANDOLPH ESTIMATED 60 MPH WINDS. 12 INCH DIAMETER TREE DOWN. 0700 PM TSTM WND DMG KEKOSKEE 43.53N 88.56W 06/12/2017 DODGE WI PUBLIC 6 INCH TO 12 INCH DIAMETER TREE LIMBS DOWN. 0646 PM TSTM WND GST RANDOLPH 43.54N 89.00W 06/12/2017 E60 MPH DODGE WI AMATEUR RADIO 0.5 MILES EAST OF RANDOLPH ESTIMATED 60 MPH WINDS. 12 INCH DIAMETER TREE DOWN. 0700 PM TSTM WND DMG KEKOSKEE 43.53N 88.56W 06/12/2017 DODGE WI PUBLIC 6 INCH TO 12 INCH DIAMETER TREE LIMBS DOWN. 0706 PM TSTM WND DMG LOMIRA 43.59N 88.44W 06/12/2017 DODGE WI PUBLIC 12 INCH DIAMETER TREE LIMB DOWN. ESTIMATED 65 MPH WIND. 0708 PM TSTM WND DMG 1 SSW BEAVER DAM 43.45N 88.85W 06/12/2017 DODGE WI AMATEUR RADIO MANY TREE BRANCHES DOWN 0.5 MILES SW OF BEAVER DAM. 0706 PM TSTM WND DMG LOMIRA 43.59N 88.44W 06/12/2017 DODGE WI PUBLIC 12 INCH DIAMETER TREE LIMB DOWN. ESTIMATED 65 MPH WIND. 0706 PM TSTM WND DMG LOMIRA 43.59N 88.45W 06/12/2017 DODGE WI PUBLIC 6 INCH DIAMETER TREE LIMB DOWN. 0708 PM TSTM WND DMG 1 SSW BEAVER DAM 43.45N 88.85W 06/12/2017 DODGE WI AMATEUR RADIO MANY TREE BRANCHES DOWN 0.5 MILES SW OF BEAVER DAM. 0724 PM TSTM WND DMG 5 NW HORICON 43.51N 88.70W 06/12/2017 DODGE WI AMATEUR RADIO DOWNED POWER LINES 1.4 MILES SOUTHEAST OF BURNETT. 0725 PM TSTM WND DMG 1 E MAYVILLE 43.50N 88.53W 06/12/2017 DODGE WI AMATEUR RADIO POWER IS OUT 0.3 MILES EAST OF MAYVILLE. 0728 PM TSTM WND GST 3 NW KEKOSKEE 43.56N 88.60W 06/12/2017 M61 MPH DODGE WI MESONET MEASURED 61 MPH AT MAYVILLE/HORICON MARSH RAWS SITE. 0707 PM TSTM WND GST 1 NNE WATERTOWN 43.20N 88.72W 06/12/2017 E50 MPH DODGE WI AMATEUR RADIO 0.3 MILES EAST OF WATERTOWN ESTIMATED 50 MPH WINDS. 0646 PM TSTM WND GST RANDOLPH 43.54N 89.00W 06/12/2017 E60 MPH DODGE WI AMATEUR RADIO A 12 INCH DIAMETER TREE IS DOWN. 0701 PM TSTM WND GST JUNEAU 43.41N 88.69W 06/12/2017 E60 MPH DODGE WI AMATEUR RADIO 0.2 MILES EAST OF JUNEAU ESTIMATED 60 MPH WINDS. 0646 PM TSTM WND GST RANDOLPH 43.54N 89.00W 06/12/2017 E60 MPH DODGE WI AMATEUR RADIO A 12 INCH DIAMETER TREE IS DOWN. 0650 PM TSTM WND GST 1 ENE BRANDON 43.74N 88.77W 06/12/2017 E70 MPH FOND DU LAC WI LAW ENFORCEMENT ESTIMATED 70 MPH WINDS. FALLING TREES. 0845 PM TSTM WND GST 1 NE KENOSHA 42.59N 87.81W 06/12/2017 M52 MPH LMZ646 WI C-MAN STATION 45 KNOT GUST AT THE C-MAN STATION KNSW3 KENOSHA LAKESHORE. 0645 PM TSTM WND DMG 1 NE WAUPUN 43.64N 88.72W 06/12/2017 FOND DU LAC WI PUBLIC A 12 INCH DIAMETER TREE WAS SNAPPED OFF IN THE 400 BLOCK OF JACKSON ST. 0650 PM TSTM WND GST WAUPUN 43.64N 88.74W 06/12/2017 E65 MPH FOND DU LAC WI PUBLIC HALF OF ROOF SHINGLES BLOWN OFF. 0650 PM TSTM WND GST 1 NNW WAUPUN 43.64N 88.74W 06/12/2017 E65 MPH FOND DU LAC WI PUBLIC HALF OF ROOF SHINGLES BLOWN OFF. 0645 PM TSTM WND DMG 1 NE WAUPUN 43.64N 88.72W 06/12/2017 FOND DU LAC WI PUBLIC A 12 INCH DIAMETER TREE WAS SNAPPED OFF IN THE 400 BLOCK OF JACKSON ST. 0642 PM TSTM WND GST 1 NNW GREEN LAKE 43.85N 88.96W 06/12/2017 M40 MPH GREEN LAKE WI LAW ENFORCEMENT ESTIMATED 40-50 MPH WINDS. 0641 PM TSTM WND DMG 2 S GREEN LAKE 43.82N 88.96W 06/12/2017 GREEN LAKE WI LAW ENFORCEMENT IN VILLAGE OF PRINCETON, TREETOPS SNAPPED OFF AND TREES DOWN. 0642 PM TSTM WND GST GREEN LAKE 43.85N 88.96W 06/12/2017 M40 MPH GREEN LAKE WI LAW ENFORCEMENT ESTIMATED 40-50 MPH WINDS. 0641 PM TSTM WND DMG 2 S GREEN LAKE 43.82N 88.96W 06/12/2017 GREEN LAKE WI LAW ENFORCEMENT IN VILLAGE OF PRINCETON, TREETOPS SNAPPED OFF AND TREES DOWN. 0820 PM TSTM WND DMG SAUKVILLE 43.38N 87.94W 06/12/2017 OZAUKEE WI EMERGENCY MNGR 2 REPORTS OF TREES DOWN. ONE NORTH OF HIGHWAY 33 IN SAUKVILLE, AND ONE SOUTH OF HIGHWAY 33 IN GRAFTON. REPORT RELAYED VIA HAM RADIO. 0820 PM TSTM WND DMG SAUKVILLE 43.38N 87.94W 06/12/2017 OZAUKEE WI EMERGENCY MNGR 2 REPORTS OF TREES DOWN. ONE NORTH OF HIGHWAY 33 IN SAUKVILLE, AND ONE SOUTH OF HIGHWAY 33 IN GRAFTON. REPORT RELAYED VIA HAM RADIO. 0745 PM HAIL 1 ENE PLYMOUTH 43.75N 87.96W 06/12/2017 M1.00 INCH SHEBOYGAN WI PUBLIC 0745 PM HAIL PLYMOUTH 43.75N 87.96W 06/12/2017 M1.00 INCH SHEBOYGAN WI PUBLIC 0720 PM TSTM WND DMG KEWASKUM 43.52N 88.22W 06/12/2017 WASHINGTON WI PUBLIC NUMEROUS FALLEN TREES IN KEWASKUM. SOME ROADS BLOCKED. 0728 PM TSTM WND GST 3 WNW JACKSON 43.33N 88.22W 06/12/2017 M50 MPH WASHINGTON WI CO-OP OBSERVER MEASURED WIND SPEED SOUTHWEST AT 50 MPH 3 MILES WEST OF JACKSON. 0730 PM HAIL HARTFORD 43.32N 88.39W 06/12/2017 E1.00 INCH WASHINGTON WI PUBLIC 0728 PM TSTM WND GST 3 W JACKSON 43.33N 88.22W 06/12/2017 M50 MPH WASHINGTON WI CO-OP OBSERVER MEASURED WIND SPEED SOUTHWEST AT 50 MPH 3 MILES WEST OF JACKSON. 0730 PM TSTM WND DMG 3 NNW JACKSON 43.36N 88.19W 06/12/2017 WASHINGTON WI TRAINED SPOTTER HORSE TRAILER KNOCKED DOWN. 0730 PM TSTM WND DMG 3 NNW JACKSON 43.36N 88.19W 06/12/2017 WASHINGTON WI TRAINED SPOTTER HORSE TRAILER KNOCKED DOWN. 0730 PM HAIL HARTFORD 43.32N 88.39W 06/12/2017 E1.00 INCH WASHINGTON WI PUBLIC 0720 PM TSTM WND DMG KEWASKUM 43.52N 88.23W 06/12/2017 WASHINGTON WI LAW ENFORCEMENT NUMEROUS TREES AND POWER LINES DOWN ACROSS WASHINGTON COUNTY. TIME ESTIMATED FROM RADAR. 0720 PM TSTM WND DMG KEWASKUM 43.52N 88.23W 06/12/2017 WASHINGTON WI LAW ENFORCEMENT NUMEROUS TREES AND POWER LINES DOWN ACROSS WASHINGTON COUNTY. TIME ESTIMATED FROM RADAR. 0747 PM TSTM WND GST 1 WSW WAUKESHA 43.00N 88.26W 06/12/2017 E50 MPH WAUKESHA WI AMATEUR RADIO ESTIMATED 50 MPH WIND AT INTERSECTION OF HWY 59 AND WEST AVE. 0744 PM TSTM WND GST WAUKESHA 43.02N 88.23W 06/12/2017 E50 MPH WAUKESHA WI AMATEUR RADIO ESTIMATED 50 MPH WIND IN DOWNTOWN WAUKESHA. 0744 PM TSTM WND GST 1 NE WAUKESHA 43.02N 88.23W 06/12/2017 E50 MPH WAUKESHA WI AMATEUR RADIO ESTIMATED 50 MPH WIND IN DOWNTOWN WAUKESHA. 0747 PM TSTM WND GST 1 SW WAUKESHA 43.00N 88.26W 06/12/2017 E50 MPH WAUKESHA WI AMATEUR RADIO ESTIMATED 50 MPH WIND AT INTERSECTION OF HWY 59 AND WEST AVE.
0800 PM TSTM WND DMG 1 W MAYVILLE 43.50N 88.57W 06/12/2017 DODGE WI PUBLIC NUMEROUS TREES AND POWER LINES DOWN THROUGHOUT CITY. SOME TREES UPROOTED AND OTHER SNAPPED OFF. AT LEAST 1 TREE GREATER THAN 12 INCH DIAMETER. TREES ON CARS. CITY WORKS USING FRONT END LOADERS TO CLEAR STREETS.
0630 PM TSTM WND DMG 1 ESE MONTELLO 43.79N 89.32W 06/12/2017 MARQUETTE WI 911 CALL CENTER NUMEROUS TREES DOWN THROUGHOUT THE COUNTY, EXCEPT FOR THE SW SIDE.
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