Thunderstorms, some severe, may produce heavy to excessive rainfall and isolated flooding over portions of the Southern Plains today and Saturday. Dry conditions, combined with gusty winds and low relative humidities will continue to support an elevated to critical fire weather threat in the Desert Southwest into to early next week. Read More >
Overview
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Severe thunderstorms formed over western Wisconsin and quickly moved across the central and southern part of the state during the afternoon of August 28, 2018. High winds and heavy rain occurred with the strongest storms. Trees and power lines were reported down from Waushara east to Manitowoc County. Most of the heavy rainfall in the NWS Green Bay service area fell during the afternoon and early evening of August 28 across the Fox Valley including the city of Green Bay. Reports from weather observers indicated 2 to 4 inches of rain fell with the storms. Streets in Appleton were flooded with water up to the hoods of cars. |
Wind and Flooding Reports
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Numerous areas reported wind gusts over 50 mph with damage to trees and power lines. Significant flooding was reported in the Fox Valley, particularly in the Appleton area. The map below shows locations of reports from storm spotters and law enforcement as well as the warnings that were issued in the NWS Green Bay service area during the event.
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Radar
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| Radar reflectivity and velocity at 4:26 PM | Three-day radar rainfall estimates: Aug 26-28 |
Preliminary Storm Reports
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0228 PM HAIL STEPHENSVILLE 44.36N 88.58W
08/28/2018 E0.25 INCH OUTAGAMIE WI LAW ENFORCEMENT
HAIL SLIGHTLY LARGER THAN 1/4 INCH.
0305 PM TSTM WND DMG 1 W WAUTOMA 44.06N 89.30W
08/28/2018 WAUSHARA WI PUBLIC
TREE DOWN WEST OF WAUTOMA. ALSO PEA SIZE HAIL NEAR
REDGRANITE.
0341 PM HEAVY RAIN ASHWAUBENON 44.46N 88.08W
08/28/2018 M1.44 INCH BROWN WI OFFICIAL NWS OBS
IN THE LAST 1 HOUR.
0343 PM HAIL N OSHKOSH 44.01N 88.55W
08/28/2018 M0.25 INCH WINNEBAGO WI TRAINED SPOTTER
INTERSECTION OF HIGHWAY 41 AND 76.
0345 PM FLOOD GREEN BAY 44.51N 88.00W
08/28/2018 BROWN WI NWS EMPLOYEE
URBAN FLOODING. ROADS COVERED BY 4-6 INCHES OF WATER.
0357 PM TSTM WND GST NEENAH 44.18N 88.44W
08/28/2018 M62.00 MPH WINNEBAGO WI TRAINED SPOTTER
0400 PM TSTM WND GST OSHKOSH 44.01N 88.55W
08/28/2018 M54.00 MPH WINNEBAGO WI ASOS
0403 PM TSTM WND GST APPLETON 44.26N 88.40W
08/28/2018 M49.00 MPH OUTAGAMIE WI AWOS
0420 PM HEAVY RAIN APPLETON 44.26N 88.40W
08/28/2018 M2.18 INCH OUTAGAMIE WI PUBLIC
RAINFALL TOTAL THIS AFTERNOON. MINOR STREET FLOODING AND
LOW-LYING AREAS.
0425 PM FLOOD NEENAH 44.18N 88.44W
08/28/2018 WINNEBAGO WI TRAINED SPOTTER
6-8 INCHES OF STANDING WATER ON ROADS. COUPLE CARS
STRANDED.
0430 PM TSTM WND DMG NEW HOLSTEIN 43.95N 88.08W
08/28/2018 CALUMET WI LAW ENFORCEMENT
LOTS OF TREES DOWN IN NEW HOLSTEIN. DELAYED REPORT BY LAW
ENFORCEMENT. ESTIMATED TIME FROM PREVIOUS REPORT OF
MESONET GUST.
0430 PM TSTM WND DMG 2 SSE MEGGERS 43.95N 88.02W
08/28/2018 MANITOWOC WI EMERGENCY MNGR
BARN DOWN ON HWY X AND 67. DELAYED REPORT TIME ESTIMATED
BY RADAR.
0430 PM TSTM WND GST NEW HOLSTEIN 43.95N 88.08W
08/28/2018 M60.00 MPH CALUMET WI MESONET
0435 PM TSTM WND DMG KIEL 43.91N 88.03W
08/28/2018 MANITOWOC WI EMERGENCY MNGR
NUMEROUS TREES AND POWER LINES DOWN AROUND THE KIEL AREA.
DELAYED REPORT TIME ESTIMATED BY RADAR.
0435 PM TSTM WND DMG KIEL 43.91N 88.03W
08/28/2018 MANITOWOC WI EMERGENCY MNGR
TREES AND POWERLINES DOWN IN CITY.
0444 PM TSTM WND DMG 5 NW CLEVELAND 43.95N 87.83W
08/28/2018 MANITOWOC WI TRAINED SPOTTER
5 TREES DOWN ON POWERLINES NEAR THE INTERSECTION OF HWY X
AND HWY 42. DELAYED REPORT. TIME ESTIMATED BY RADAR.
0444 PM TSTM WND GST 4 E KIEL 43.91N 87.95W
08/28/2018 E60.00 MPH MANITOWOC WI TRAINED SPOTTER
0446 PM FUNNEL CLOUD SPRING VALLEY 43.94N 87.84W
08/28/2018 MANITOWOC WI TRAINED SPOTTER
0446 PM HEAVY RAIN 2 E GREEN BAY 44.51N 87.96W
08/28/2018 M3.10 INCH BROWN WI PUBLIC
0447 PM FLASH FLOOD APPLETON 44.26N 88.40W
08/28/2018 OUTAGAMIE WI LAW ENFORCEMENT
ROADS IN APPLETON IMPASSIBLE DUE TO WATER. WATER IS UP TO
THE HOODS OF CARS.
0452 PM HEAVY RAIN 5 ESE MENASHA 44.17N 88.35W
08/28/2018 M2.14 INCH CALUMET WI TRAINED SPOTTER
SINCE 315PM
0454 PM TSTM WND GST NEWTON 43.99N 87.73W
08/28/2018 M62.00 MPH MANITOWOC WI MESONET
0516 PM HEAVY RAIN E GREEN BAY 44.51N 88.00W
08/28/2018 M3.90 INCH BROWN WI NWS EMPLOYEE
24 HOUR TOTAL. SINCE 2 PM 3.46 INCHES.
0534 PM FLOOD WAUTOMA 44.06N 89.28W
08/28/2018 WAUSHARA WI LAW ENFORCEMENT
LOTS OF ROADWAYS COVERED IN WATER.
0543 PM FLOOD 2 SE GREEN BAY 44.49N 87.97W
08/28/2018 BROWN WI LAW ENFORCEMENT
AREA ROADWAYS STILL FLOODED, ESPECIALLY ON MAIN STREET
FROM MASON TO LIME KILN ROADS.
0600 PM HEAVY RAIN GREEN BAY 44.51N 88.00W
08/28/2018 M3.63 INCH BROWN WI NWS EMPLOYEE
EAST SIDE OF GREEN BAY. TOTAL FROM THIS AFTERNOON.
24-HOUR TOTAL OF 4.07. STREET FLOODING REPORTED THIS
AFTERNOON.
0620 PM FLOOD BRILLION 44.18N 88.06W
08/28/2018 CALUMET WI LAW ENFORCEMENT
AREA ROADWAYS STILL FLOODED.
0620 PM FLOOD HARRISON 44.13N 88.29W
08/28/2018 CALUMET WI LAW ENFORCEMENT
AREA ROADWAYS STILL FLOODED.
0639 PM HEAVY RAIN 6 SE FREMONT 44.20N 88.77W
08/28/2018 M2.00 INCH WINNEBAGO WI CO-OP OBSERVER
TOTAL SINCE 7 AM.
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