Ozaukee County, Wisconsin
Tornadoes, hail, floods and severe storms recorded here between 1960 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
4
Tornado reports
71
Hail reports
45
Floods since 1996
670
All events
5
Deaths
$35.1M
Property damage
Tornado paths in Ozaukee County
The part of each tornado’s path NOAA recorded in this county, 4 in all. Zoom in and the paths widen to their surveyed width.
EF0EF1EF2EF3EF4EF5Unrated
Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
Numerous flooding reports all over the county with some road closures. Numerous basements flooded in Port Washington. A retaining wall collapsed onto an elderly woman in Port Washington, killing her. Two drivers rescued driving into deep water underneath a railroad bridge on Spri…
Snow accumulation of 4 to 5 inches. One indirect death from a vehicle accident on I-43 near Saukville around 8 AM.
Ozaukee County Emergency Manager first alerted WFO MKX about a missing swimmer at Harrington Beach State Park along the Lake Michigan shore. A group of 5 people went swimming in dangerous swimming conditions when strong onshore winds were creating high waves and an increased risk…
Ozaukee County Emergency Manager first alerted WFO MKX about a missing swimmer at Harrington Beach State Park along the Lake Michigan shore. A group of 5 people went swimming in dangerous swimming conditions when strong onshore winds were creating high waves and an increased risk…
Excessive Heat Excessive Heat
Peak heat index: 105F Estimated.
Excessive Heat Excessive Heat
Peak Heat Index: 105F-Estimated.
Flash Flood Flash Flood
Flash flooding of streets in southern Ozaukee County. More specifically, flooded roads and intersections on Mequon Rd. from Wauwatosa Rd. to just east of I-43. Other intersections across the area with 3-6 inches of standing water.
Blizzard Blizzard
Snowfall totals of 7 to 9 inches and winds of 40 to 50 mph caused frequent white-out conditions across the county, especially on north-south roads and open areas. Highest snowfall totals were in the northwest half of the county. All schools were closed.
High Wind High Wind
Measured wind gust of 64 mph at the lakefront in Port Washington. Many branches down throughout the county, and several thousand customers without power.
Winter Weather Winter Weather
Snow accumulation of 1-2 inches in the southern portion of the county.
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Widespread wind chills between 30 and 35 below zero observed countywide on the morning of 01/23, with locally colder readings. Widespread readings between 30 and 35 below zero observed countywide during the late overnight of 01/23 and early morning of 01/24. Coldest wind chill of…
Winter Weather Winter Weather
Snow accumulations near 0.5 inches observed countywide, with locally higher totals. Greatest accumulation of 0.8 inches observed near Port Washington. Blowing snow and reduced visibilities continue following the end of snowfall, leading to lingering travel impacts.
Winter Weather Winter Weather
Snow accumulation generally an inch or less countywide; numerous reported crashes on roadways.
Winter Weather Winter Weather
Snow accumulation of 1-2 inches.
Winter Weather Winter Weather
Snow accumulation of 1-3 inches. Westerly wind gusts 35-40 mph.
Winter Weather Winter Weather
Wind chill temperatures 20 below to 26 below zero.
Winter Weather Winter Weather
Snow accumulation of 2-4 inches with lesser amounts near the lake. Some blowing and drifting snow.
Winter Storm Winter Storm
Snow accumulation 5-12 inches with the lowest amounts near the lake.
Winter Weather Winter Weather
Snow accumulation less than 2 inches and wind gusts of 40-50 mph. A portion of I-43 was closed for some time due to accidents on a slick highway.
Flood Flood
The Milwaukee River and Cedar Creek continued to flood from the heavy rainfall of prior days in Ozaukee County. For the flooded Milwaukee River, floodwaters affected Island Dr. and Shoreland Parkway in the Mequon area. Water is over Elm St, Green Bay Rd., and North Cedarburg Rd. …
Flash Flood Flash Flood
The flash flooding of streets, creeks, rivers, and low lying neighborhoods in Mequon, Thiensville, Cedarburg and southern Grafton. More specifically, the flash flooding of Pigeon Creek washed out a portion of Highland Rd. The flash flooding of Olau Creek flooded Pioneer Rd. just …
Flood Flood
The continued areal flooding of streets, creeks, rivers, and low lying neighborhoods in Mequon, Thiensville, Cedarburg and southern Grafton. More specifically, the flooding of Pigeon Creek washed out a portion of Highland Rd. The flooding of Olau Creek flooded Pioneer Rd. just we…
Flash Flood Flash Flood
The flash flooding of some streets, creeks, rivers, and low lying neighborhoods in northern Cedarburg, Grafton, Saukville and Port Washington. Some basement flooding due to excessive runoff or sewer backups.
Flood Flood
The continued areal flooding of streets, creeks, rivers, and low lying neighborhoods in northern Cedarburg, Grafton, Port Washington and other areas of central and northern Ozaukee County. Sections of I-43 were closed due to flooding. This included I-43 northbound from Pioneer Rd…
Heat Heat
Maximum heat index values of 100-104 degrees Fahrenheit. Minimum heat index values in the middle to upper 70s away from Lake Michigan.
Winter Weather Winter Weather
Storm-total accumulations generally in the 1 to 3 inch range countywide. Highest total of 3.2 inches observed in Newburg. Peak wind gusts were around 40 mph during the evening while the snow was falling.
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Widespread wind chills between -25 and -30 observed countywide, with locally colder values. Minimum wind chill of -31 observed near Fredonia.
Winter Weather Winter Weather
Storm-total accumulations generally in the 3-6 inch range countywide. Highest total of 5.9 inches observed in Saukville.
Winter Weather Winter Weather
Storm-total accumulations generally in the 3-6 inch range countywide. Highest total of 6.0 inches observed in Mequon.
Winter Weather Winter Weather
Ice accumulations from freezing drizzle ranging between 0.02 inches and 0.10 inches, resulting in slippery spots on untreated surfaces.
Extreme Cold/Wind Chill Extreme Cold/Wind Chill
Widespread wind chills near and just below -30 degrees were observed from 2 AM January 21 through the mid morning hours of January 21. Coldest wind chill of -32 was observed in Fredonia.
Winter Weather Winter Weather
Light glaze of ice on untreated roads and surfaces from freezing drizzle.
Winter Weather Winter Weather
Accumulations of 1-2 inches across most of the county, with locally higher totals. Highest accumulation of 2.3 inches observed in Saukville.
Winter Storm Winter Storm
Long duration snowfall brings widespread 7-11 inch accumulations countywide. Highest total of 11.0 inches observed in Fredonia.
Winter Weather Winter Weather
Snow accumulation of 3-5 inches. West northwest wind gusts of 25-35 mph with visibility as low as 1/4-1/2 mile.
Thunderstorm Wind Thunderstorm Wind
Scattered trees and power lines down through central and southern portions of the county.
Thunderstorm Wind Thunderstorm Wind
Tree and power line damage at highway NN and Granville Road.
Thunderstorm Wind Thunderstorm Wind
Trees down in the vicinity of County Roads B and A.
Hail Hail
Hail Hail
Hail Hail
Winter Weather Winter Weather
Snow accumulation of 3-5 inches.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 10 | 0 |
| 2025 | 18 | 0 |
| 2024 | 16 | 0 |
| 2023 | 12 | 0 |
| 2022 | 20 | 0 |
| 2021 | 14 | 0 |
| 2020 | 24 | 0 |
| 2019 | 28 | 0 |
| 2018 | 27 | 0 |
| 2017 | 16 | 0 |
| 2016 | 19 | 0 |
| 2015 | 14 | 1 |
| 2014 | 16 | 0 |
| 2013 | 19 | 0 |
| 2012 | 32 | 0 |
| 2011 | 21 | 0 |
| 2010 | 17 | 0 |
| 2009 | 16 | 0 |
| 2008 | 38 | 0 |
| 2007 | 44 | 0 |
| 2006 | 33 | 0 |
| 2005 | 23 | 0 |
| 2004 | 30 | 0 |
| 2003 | 12 | 0 |
| 2002 | 16 | 0 |
| 2001 | 23 | 0 |
| 2000 | 16 | 0 |
| 1999 | 15 | 0 |
| 1998 | 10 | 0 |
| 1997 | 9 | 0 |
| 1996 | 23 | 2 |
| 1995 | 1 | 0 |
| 1992 | 2 | 0 |
| 1991 | 4 | 0 |
| 1989 | 4 | 0 |
| 1988 | 1 | 0 |
| 1987 | 3 | 0 |
| 1986 | 1 | 0 |
| 1984 | 1 | 0 |
| 1983 | 2 | 0 |
| 1982 | 2 | 0 |
| 1981 | 1 | 0 |
| 1980 | 3 | 0 |
| 1979 | 1 | 0 |
| 1978 | 1 | 0 |
| 1977 | 1 | 0 |
| 1976 | 2 | 0 |
| 1975 | 2 | 0 |
| 1974 | 1 | 0 |
| 1970 | 1 | 0 |
| 1967 | 1 | 0 |
| 1964 | 1 | 1 |
| 1961 | 2 | 0 |
| 1960 | 1 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Ozaukee County, measured to its path.
We couldn’t get your location. Check that location access is allowed for this site, or type an address.