Green Bay, WI

Weather Forecast Office

Severe Storm Summary - July 20, 2019

Overview

A line of severe thunderstorms moved across much of central and east-central WI during the late morning and early afternoon hours on July 20, 2019. Widespread tree and power line damage was reported.

The worst damage occurred from Wood/Portage counties eastward into the Fox Valley and lakeshore. Trees were uprooted or snapped and several structures were damaged as a result of straight-line winds and six weak, fast-moving tornadoes.

Please see the tabs below for more information.

Tornadoes
Map of Storm Reports
Radar
List of Storm Reports

Tornadoes:

Waupaca
Waupaca Co.

Date	July 20, 2019
Time (Local)	10:55 am - 11:03 am
EF Rating	1
Est. Peak Winds	90 mph
Path Length	7.6 miles
Max Width	80 yards
Injuries/Deaths	None
Summary: Damage to several buildings, corn field, and trees.

Drone footage of damage to a building.
Picture courtesy of Waupaca Emergency Management

Track Map

EF-Scale

Weyauwega
Waupaca Co.

Date	July 20, 2019
Time (Local)	11:00 am - 11:02 am
EF Rating	0
Est. Peak Winds	75 mph
Path Length	1.4 miles
Max Width	50 yards
Injuries/Deaths	None
Summary: Damage primarily confined to trees.

Track Map

EF-Scale

New London
Eastern Waupaca Co. and Western Outagamie Co.

Date	July 20, 2019
Time (Local)	11:09 am - 11:20 am
EF Rating	1
Est. Peak Winds	90 mph
Path Length	7.6 miles
Max Width	90 yards
Injuries/Deaths	None
Summary: Trees and a few power poles snapped. Siding, shingles, and shutters ripped off one side of a home; part of a wooden deck destroyed.

Tree damage

Track Map

EF-Scale

Hortonville
Outagamie Co. (NW of Greenville)

Date	July 20, 2019
Time (Local)	11:18 am - 11:22 am
EF Rating	1
Est. Peak Winds	95 mph
Path Length	3.5 miles
Max Width	75 yards
Injuries/Deaths	None
Summary: 3 to 4 power poles snapped. Carport destroyed, 2 outbuildings partially destroyed, several trees snapped, partial loss of siding to 2 houses, camper overturned.

Power lines snapped / blown over

Corn damage

Tree damage

Track Map

EF-Scale

Greenville
Outagamie Co. (NE of Greenville)

Date	July 20, 2019
Time (Local)	11:22 am - 11:23 am
EF Rating	0
Est. Peak Winds	85 mph
Path Length	0.72 miles
Max Width	50 yards
Injuries/Deaths	None
Summary: Partial loss of roof covering and siding of house; large tree limbs broken; power pole broken.

Tree damage

Power line snapped

Track Map

EF-Scale

E Kaukauna
Outagamie Co.

Date	July 20, 2019
Time (Local)	11:36 am - 11:39 am
EF Rating	0
Est. Peak Winds	80 mph
Path Length	1.1 miles
Max Width	50 yards
Injuries/Deaths	None
Summary: Loss of metal roofing on barn upstream of tornado and partial loss of metal roofing on downstream side of tornado and loss of silo top.

Barn damage

Silo damage

Track Map

EF-Scale

The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:

EF0 Weak 65-85 mph	EF1 Moderate 86-110 mph	EF2 Significant 111-135 mph	EF3 Severe 136-165 mph	EF4 Extreme 166-200 mph	EF5 Catastrophic 200+ mph

Wind and Flooding Reports:


Storm reports on July 20

Radar:

Radar Reflectivity (15 minute intervals) from 8:00 AM to 1:48 PM July 20, 2019

Radar Reflectivity (2-4 minute intervals including SAILS scans) from 10:00 AM to 12:14 PM July 20, 2019

Preliminary Storm Reports

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GREEN BAY WI
346 PM CDT SAT JUL 20 2019

..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..

1011 AM TSTM WND GST MARSHFIELD 44.66N 90.16W
07/20/2019 M64.00 MPH WOOD WI ASOS

1011 AM TSTM WND GST MARSHFIELD 44.66N 90.16W
07/20/2019 M58.00 MPH WOOD WI ASOS

1025 AM TSTM WND DMG WISCONSIN RAPIDS 44.40N 89.84W
07/20/2019 WOOD WI TRAINED SPOTTER

BRANCHES DOWN BLOCKING THE ROAD ON A RESIDENTIAL STREET.
BRANCHES AS BIG AS 5 INCHES IN DIAMETER AND 10 FEET LONG.
MAY BE LARGER DOWN THE ROAD.

1026 AM TSTM WND DMG WISCONSIN RAPIDS 44.40N 89.84W
07/20/2019 WOOD WI TRAINED SPOTTER

TREES DOWN IN WISCONSIN RAPIDS. ONE AT CANAL STREET
ANOTHER AT FISHER STREET.

1026 AM TSTM WND DMG BABCOCK 44.29N 90.13W
07/20/2019 WOOD WI TRAINED SPOTTER

SPORADIC DOWN TREES.

1026 AM TSTM WND DMG STEVENS POINT 44.51N 89.56W
07/20/2019 PORTAGE WI TRAINED SPOTTER

MANY TREES DOWN AT AN APARTMENT COMPLEX. ESTIMATED ABOUT
1 FOOT IN DIAMETER.

1029 AM TSTM WND GST PLOVER 44.45N 89.53W
07/20/2019 M86.30 MPH PORTAGE WI CO-OP OBSERVER

MEASURED GUSTS AT COOP STATION PLOW3. ALSO REPORTED ON
DAMAGE TO MENARDS IN TOWN AND DOORS BLOWN OUT OF THE
STORE.

1030 AM TSTM WND DMG ALMOND 44.26N 89.40W
07/20/2019 PORTAGE WI CO-OP OBSERVER

NUMEROUS TREE LIMBS DOWN AND ONE TREE DOWN. DIAMETER
LARGER THAN ONE FOOT.

1032 AM TSTM WND DMG PORT EDWARDS 44.33N 89.84W
07/20/2019 WOOD WI TRAINED SPOTTER

TREES AND POWER LINES DOWN ON HIGHWAY 54

1036 AM TSTM WND DMG WISCONSIN RAPIDS 44.40N 89.84W
07/20/2019 WOOD WI STORM CHASER

LOTS OF POWER LINES DOWN ON FISHER ROAD

1038 AM TSTM WND DMG PLAINFIELD 44.21N 89.48W
07/20/2019 WAUSHARA WI LAW ENFORCEMENT

TREES DOWN. TIME ESTIMATED.

1038 AM TSTM WND DMG STEVENS POINT 44.51N 89.56W
07/20/2019 PORTAGE WI TRAINED SPOTTER

TREES DOWN. ALL TREES APPEAR TO HAVE FALLEN IN THE SAME
DIRECTION. DELAYED REPORT. TIME ESTIMATED.

1040 AM TSTM WND DMG PLOVER 44.45N 89.53W
07/20/2019 PORTAGE WI TRAINED SPOTTER

UPROOTED TREES ADN TREE DAMAGE IN TRAILER PARK ON HAYES
AVENUE. SIDING IS OFF SOME TRAILERS.

1042 AM TSTM WND GST 6 N STEVENS POINT 44.60N 89.56W
07/20/2019 M56.00 MPH PORTAGE WI TRAINED SPOTTER

VEHICLE PULLED OVER ON INTERSTATE 39 NORTH OF STEVENS
POINT. ALSO TORRENTIAL RAIN AND WIND ROCKING VEHICLE.

1043 AM TSTM WND DMG 1 SSW DANCY 44.67N 89.69W
07/20/2019 PORTAGE WI TRAINED SPOTTER

LAKE DUBAY COUNTY PARK. NUMEROUS TREES DOWN. ESTIMATED
WINDS OF 70 MPH.

1045 AM TSTM WND DMG AMHERST 44.45N 89.28W
07/20/2019 PORTAGE WI TRAINED SPOTTER

NEAR AMHERST. TREES DOWN ABOUT 5 INCHES IN DIAMETER AND
BLOWING DEBRIS.

1046 AM TSTM WND DMG ARNOTT 44.45N 89.43W
07/20/2019 PORTAGE WI TRAINED SPOTTER

TREES DOWN. ESTIMATED WINDS OF 90 MPH.

1047 AM TSTM WND DMG 8 N STEVENS POINT 44.63N 89.56W
07/20/2019 PORTAGE WI TRAINED SPOTTER

LARGE TREE DOWN ON INTERSTATE 39 SOUTHBOUND LANE ABOUT 8
MILES NORTH OF STEVENS POINT.

1049 AM TSTM WND DMG WILD ROSE 44.18N 89.25W
07/20/2019 WAUSHARA WI LAW ENFORCEMENT

TREES DOWN. TIME ESTIMATED.

1057 AM TSTM WND DMG ARNOTT 44.45N 89.43W
07/20/2019 PORTAGE WI TRAINED SPOTTER

UPDATE TO PREVIOUS REPORT. ROOF DAMAGE TO SOME BUILDINGS.
NUMEROUS TREES DOWN.

1100 AM TSTM WND DMG SCANDINAVIA 44.46N 89.13W
07/20/2019 WAUPACA WI TRAINED SPOTTER

TREES DOWN ON HOMES, ROADS, WIRES ACROSS THE TOWN. TIME
ESTIMATED

1100 AM TSTM WND DMG 3 NNW WAUPACA 44.40N 89.10W
07/20/2019 WAUPACA WI PUBLIC

DOZENS OF TREES DOWN FROM THUNDERSTORM WINDS ESTIMATED
75 TO 80 MPH.

1101 AM TSTM WND GST WAUSAU 44.96N 89.63W
07/20/2019 M74.00 MPH MARATHON WI ASOS

1101 AM TSTM WND DMG AMHERST 44.45N 89.28W
07/20/2019 PORTAGE WI TRAINED SPOTTER

DEBRIS FLYING ACROSS ROAD. ESTIMATED 80 MPH WINDS.

1103 AM FUNNEL CLOUD WEYAUWEGA 44.31N 88.93W
07/20/2019 WAUPACA WI LAW ENFORCEMENT

1105 AM TSTM WND DMG IOLA 44.50N 89.11W
07/20/2019 WAUPACA WI TRAINED SPOTTER

LARGE TREE DOWN, ABOUT ONE FOOT IN DIAMETER.

1106 AM TSTM WND DMG WITTENBERG 44.81N 89.15W
07/20/2019 SHAWANO WI LAW ENFORCEMENT

TREES DOWN. TIME ESTIMATED.

1110 AM TSTM WND DMG NEW LONDON 44.38N 88.75W
07/20/2019 WAUPACA WI TRAINED SPOTTER

TIME ESTIMATED BY RADAR. NUMEROUS TREES DOWN WITHIN THE
TOWN. MAJOR DAMAGE REPORTED. MANY STREETS COVERED WITH
DOWNED TREES AND LIMBS. POWER IS OUT.

1114 AM FUNNEL CLOUD DALE 44.26N 88.68W
07/20/2019 OUTAGAMIE WI LAW ENFORCEMENT

1115 AM TSTM WND DMG KNOWLTON 44.71N 89.68W
07/20/2019 MARATHON WI TRAINED SPOTTER

TREES DOWN ON HIGHWAY 34 AND OTHER AREAS.

1117 AM FUNNEL CLOUD GREENVILLE 44.29N 88.53W
07/20/2019 OUTAGAMIE WI LAW ENFORCEMENT

1120 AM TSTM WND DMG NE APPLETON 44.26N 88.40W
07/20/2019 OUTAGAMIE WI TRAINED SPOTTER

A COUPLE OF ROAD SIGNS DOWN OVER 441 SOUTHBOUND. POWER
POLE BENT OVER NEAR 41 AND BALLARD. A COUPLE OTHER ROAD
SIGNS BLOWN OVER AND TREE DAMAGE AS WELL.

1122 AM TSTM WND GST APPLETON 44.26N 88.40W
07/20/2019 M60.00 MPH OUTAGAMIE WI AWOS

1123 AM TSTM WND DMG NEENAH 44.18N 88.44W
07/20/2019 WINNEBAGO WI EMERGENCY MNGR

TREES DOWN. DELAYED REPORT. TIME ESTIMATED.

1123 AM TSTM WND DMG APPLETON 44.26N 88.40W
07/20/2019 OUTAGAMIE WI TRAINED SPOTTER

2 TREES UPROOTED AND HOUSE DAMAGE.

1125 AM TSTM WND GST APPLETON 44.26N 88.40W
07/20/2019 M67.00 MPH OUTAGAMIE WI TRAINED SPOTTER

MEASURED GUST AT PERKINS AND COLLEGE AVENUE.

1125 AM FUNNEL CLOUD APPLETON 44.26N 88.40W
07/20/2019 OUTAGAMIE WI LAW ENFORCEMENT

1128 AM TSTM WND DMG APPLETON 44.26N 88.40W
07/20/2019 OUTAGAMIE WI PUBLIC

TREE LIMBS DOWN

1131 AM TSTM WND GST SHERWOOD 44.17N 88.27W
07/20/2019 M59.00 MPH CALUMET WI TRAINED SPOTTER

1132 AM TSTM WND DMG SHAWANO 44.78N 88.59W
07/20/2019 SHAWANO WI LAW ENFORCEMENT

WIDESPREAD TREES DOWN ACROSS THE COUNTY. TIME ESTIMATED.

1132 AM TSTM WND DMG IOLA 44.50N 89.11W
07/20/2019 WAUPACA WI TRAINED SPOTTER

TREES AND POWER LINES DOWN ALL OVER THE PLACE. STREET
FLOODING

1137 AM TSTM WND DMG 4 NE KAUKAUNA 44.32N 88.21W
07/20/2019 OUTAGAMIE WI TRAINED SPOTTER

MULTIPLE TREES DOWN. DELAYED REPORT. TIME ESTIMATED BY
RADAR.

1143 AM TSTM WND DMG ANGELICA 44.66N 88.30W
07/20/2019 SHAWANO WI LAW ENFORCEMENT

TREES DOWN. TIME ESTIMATED.

1144 AM TSTM WND GST WRIGHTSTOWN 44.33N 88.16W
07/20/2019 M67.00 MPH BROWN WI TRAINED SPOTTER

MULTIPLE LARGE TREES DOWN. LOCATED NEAR THE MIDDLE OF THE
CITY.

1145 AM TSTM WND DMG FREEDOM 44.38N 88.28W
07/20/2019 OUTAGAMIE WI PUBLIC

LARGE TREE BRANCHES DOWN ON GARVEY AVE. TIME ESTIMATED BY
RADAR.

1149 AM FLASH FLOOD CLINTONVILLE 44.61N 88.75W
07/20/2019 WAUPACA WI TRAINED SPOTTER

STREET FLOODING. PARKING LOTS UNDER WATER

1159 AM TSTM WND GST GREEN BAY 44.51N 88.00W
07/20/2019 M59.00 MPH BROWN WI ASOS

1200 PM TSTM WND DMG W FRANCIS CREEK 44.20N 87.71W
07/20/2019 MANITOWOC WI TRAINED SPOTTER

DOWNED TREES ON COUNTY HIGHWAY Q BETWEEN LORENZ AND
BEAGLE STREETS. ONE TREE ABOUT 13 INCHES IN DIAMETER DOWN
ON A POWER LINE. TIME ESTIMATED BY RADAR.

1200 PM TSTM WND DMG PLOVER 44.45N 89.53W
07/20/2019 PORTAGE WI CO-OP OBSERVER

DAMAGE TO RETAIL STORE IN PLOVER. GLASS DOORS BLOWN IN,
PIPES FELL FROM CEILING.

1201 PM TSTM WND DMG LARRABEE 44.26N 87.71W
07/20/2019 MANITOWOC WI LAW ENFORCEMENT

NUMEROUS TREES DOWN ACROSS THE COUNTY. TIME ESTIMATED.

1201 PM TSTM WND DMG DENMARK 44.34N 87.83W
07/20/2019 BROWN WI TRAINED SPOTTER

TREES DOWN. DELAYED REPORT. TIME ESTIMATED.

1205 PM TSTM WND DMG GREEN BAY 44.51N 88.00W
07/20/2019 BROWN WI PUBLIC

SIX TO EIGHT INCH OAK TREE BRANCH DOWN ON BEECH TREE AND
WEST POINT ROAD. REPORT VIA SOCIAL MEDIA.

1205 PM TSTM WND DMG MANITOWOC 44.08N 87.66W
07/20/2019 MANITOWOC WI TRAINED SPOTTER

TREES DOWN ON HIGHWAY Q NORTH OF MANITOWOC

1206 PM TSTM WND DMG TWO RIVERS 44.15N 87.56W
07/20/2019 MANITOWOC WI PUBLIC

TREE DOWN BLOCKING THE ROAD. TIME ESTIMATED.

1209 PM TSTM WND DMG STANGELVILLE 44.40N 87.68W
07/20/2019 KEWAUNEE WI LAW ENFORCEMENT

TREES DOWN. DELAYED REPORT. TIME ESTIMATED.

1209 PM TSTM WND DMG MISHICOT 44.23N 87.63W
07/20/2019 MANITOWOC WI LAW ENFORCEMENT

TREE MOVED A HOUSE OFF ITS FOUNDATION. DELAYED REPORT.
TIME ESTIMATED.

1212 PM TSTM WND DMG NORMAN 44.36N 87.59W
07/20/2019 KEWAUNEE WI LAW ENFORCEMENT

TREES DOWN. DELAYED REPORT. TIME ESTIMATED.

1215 PM TSTM WND DMG WRIGHTSTOWN 44.33N 88.16W
07/20/2019 BROWN WI TRAINED SPOTTER

TREES AND WIRES DOWN ALL ACROSS WRIGHTSTOWN. TIME
ESTIMATED.

1218 PM TSTM WND DMG 4 SSW KEWAUNEE 44.40N 87.53W
07/20/2019 KEWAUNEE WI LAW ENFORCEMENT

TREES DOWN. TIME ESTIMATED.

1221 PM FLASH FLOOD ASHWAUBENON 44.46N 88.08W
07/20/2019 BROWN WI AMATEUR RADIO

FLOODING TO HEADLIGHT LEVEL OF FORD F150 AT ALLIED AND
CIRCLE.

1224 PM FLASH FLOOD ASHWAUBENON 44.46N 88.08W
07/20/2019 BROWN WI AMATEUR RADIO

FLOODING AT THE BOWLING ALLEY.

1231 PM FLASH FLOOD GREEN BAY 44.51N 88.00W
07/20/2019 BROWN WI AMATEUR RADIO

8 TO 10 INCHES OF WATER IN THE UNIVERSITY MARKET AREA ON
UNIVERSITY.

1239 PM TSTM WND DMG MAPLEWOOD 44.75N 87.48W
07/20/2019 DOOR WI LAW ENFORCEMENT

TREES DOWN ACROSS THE COUNTY. TIME ESTIMATED.

1245 PM FLASH FLOOD STURGEON BAY 44.83N 87.38W
07/20/2019 DOOR WI LAW ENFORCEMENT

14TH AVE CLOSED DUE TO FLOODING

1254 PM MARINE TSTM WIND 1 N KEWAUNEE 44.47N 87.50W
07/20/2019 M39.00 MPH KEWAUNEE WI C-MAN STATION

0106 PM FLOOD STEVENS POINT 44.51N 89.56W
07/20/2019 PORTAGE WI TRAINED SPOTTER

STANDING WATER OF ABOUT 6 INCHES IN A FEW PARTS OF THE
CITY. INCLUDING OKRAY AVENUE AND RIVER ROAD.

0154 PM MARINE TSTM WIND 1 NE MARINETTE 45.10N 87.59W
07/20/2019 M41.00 MPH MENOMINEE MI C-MAN STATION

0214 PM HEAVY RAIN ANTIGO 45.15N 89.15W
07/20/2019 M3.50 INCH LANGLADE WI TRAINED SPOTTER

RAINFALL SINCE LAST EVENING.

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