Waukesha County, Wisconsin
Tornadoes, hail, floods and severe storms recorded here between 1954 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
40
Tornado reports
260
Hail reports
64
Floods since 1996
1,260
All events
9
Deaths
$278.9M
Property damage
Tornado paths in Waukesha County
The part of each tornado’s path NOAA recorded in this county, 40 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.
Tornado F3 Tornado
Report of a lightning-related fatality in a gas station parking lot.
A car accident during dense fog in a construction zone resulted in a fatality. The accident occurred at the intersection of county highways CW and SC.
Icy roads contributed to a single vehicle accident that claimed the life of the driver.
Three to five inches of powdery snow causing numerous slide-offs and accidents, including a 50 vehicle pile-up on highway 41/45. One death occurred with the pile-up.
Heavy rains led to flash flooding that generated water levels of 2 to 4 feet deep on many low-lying roads, especially near existing lakes. Several vehicles stalled in the deep water and were damaged. A 68-year-old man left a tavern around 2245 CST and drove into a flooded area. H…
An EF2 tornado developed about 1.9 miles west-southwest of the Village of Eagle, roughly 1/2 mile south-southeast of the intersection of STH 59 and CTH S, just west of CTH S and west of a horse-riding ranch, and moved east-northeast through the Eagle and then moved due east and t…
Tornado appeared to develop in the Lisbon Oaks subdivision, causing mainly tree damage before intensifying closer to Highway 164. The tornado was at it's most intense near Indian Grass Lane where it caused damage to multiple businesses. The strongest damage was to an insurance ca…
Widespread flash flooding of streets, creeks, rivers, and low lying neighborhoods and homes occurred especially in New Berlin, Brookfield, Butler, Menomonee Falls, Elm Grove, and Muskego. Some of the more notable creeks or rivers that flooded were the Fox and Menomonee Rivers and…
Widespread flash flooding of streets, creeks, rivers, and low lying neighborhoods and homes occurred especially in New Berlin, Brookfield, Menomonee Falls, Waukesha, Pewaukee, Merton, and Muskego. Some of the more notable creeks or rivers that flooded were the Fox River, Jewel Cr…
Approximately 100 people were displaced when an apartment building was struck by lightning causing a fire. The 42 unit apartment building was a total loss. One resident was rescued from the third floor and one fireman was injured. Two residents were also injured.
Thunderstorms training over the region produced 4 to 7 inches of rain over Waukesha County. While many sections of the county experienced flash flooding, the north and northeast sections were hardest hit, with numerous roads flooded and basements flooded in Brookfield, Menomonee …
Heavy rains resulted in flash flooding across much of Waukesha County. Water reached depths of 3 feet or more and several cars stalled. This was one of 4 flash floods in Waukesha County that occurred on Junen 7th and 8th. Collectively, each of these 4 flash floods resulted in hom…
A 1-in-a-100-year flood occurred in and around the city of Waukesha after a heavy rain of 3 to 5 inches within a 2-hr period. The heavy rains were the result of slow-moving or back-building thunderstorms that essentially sat over the same area. There were no reports of injuries o…
Hail sized ranged from 1.00 to 2.00 inches in diameter.
Hail sized ranged from 1.00 to 2.75 inches in diameter.
Excessive Heat Excessive Heat
Peak heat index: 110F Muskego 108F Mukwonago 107F Eagle 105F New Berlin 105F Waukesha.
Excessive Heat Excessive Heat
Peak Heat Index: 106F-Estimated.
Thunderstorm Wind Thunderstorm Wind
Public report a small tree snapped half way up. Wind gust estimated from radar data and damage.
Tornado EF0 Tornado
The tornado began over a farm field where a few small limbs were downed. The tornado continued to the northeast, snapping a few trees and downing several large limbs. Further to the northeast, the view was not accessible with the tornado ending southwest of Big Muskego Lake, sout…
Hail Hail
Hail Hail
Flash Flood Flash Flood
Flash flooding of streets in many locations throughout Waukesha and extending into Brookfield. Farther to the south, Artesian Ave. was flooded and closed.
Flood Flood
The Fox River in Waukesha rose to a Moderate flood stage. Water touched the base of Barstow St bridge and Bank St bridge. Corrina Blvd, Buckley St, W Main St, Riverwalk Dr, and parts of Dunbar Ave flooded. Grede Park, Glacial Drumlin Trail, Fox Riverwalk, and Frame Park flooded. …
Hail Hail
Public report of 1 inch diameter hail near Oconomowoc.
Hail Hail
Public report of 1 inch diameter hail in Hartland.
Hail Hail
Trained spotter reports 2 inch diameter hail northeast of Menomonee Falls.
Hail Hail
Public report of 1.25 inch diameter hail near Menomonee Falls.
Hail Hail
Public report of 1.25 inch diameter hail south of Richfield.
Hail Hail
Public report of 1.5 inch diameter hail near Merton.
Hail Hail
Public report of 1 inch diameter hail northeast of Menomonee Falls.
Thunderstorm Wind Thunderstorm Wind
A swath of scattered tree and powerline damage across the county, but with heavier concentrations of damage in some areas. There was widespread tree damage on the west side of Lake Okauchee, and also a concentration of uprooted and snapped trees, including some felled on homes, n…
Flash Flood Flash Flood
Flash flooding of streets from Sussex toward Menomonee Falls.
Blizzard Blizzard
Snowfall totals of 6 to 9 inches and winds of 35 to 45 mph caused frequent white-out conditions across the county. The Waukesha County Communications Center reported a total of 81 vehicles in the ditch or disabled or in an accident. All schools were closed.
Winter Weather Winter Weather
A light glaze due to freezing rain and intermittent sleet in northern portions of the county. There was a total of 0.2 inch of sleet in Oconomowoc.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 29 | 2 |
| 2025 | 54 | 0 |
| 2024 | 48 | 0 |
| 2023 | 22 | 2 |
| 2022 | 52 | 1 |
| 2021 | 26 | 4 |
| 2020 | 28 | 0 |
| 2019 | 38 | 1 |
| 2018 | 37 | 0 |
| 2017 | 24 | 0 |
| 2016 | 29 | 0 |
| 2015 | 25 | 2 |
| 2014 | 42 | 0 |
| 2013 | 43 | 0 |
| 2012 | 43 | 0 |
| 2011 | 30 | 0 |
| 2010 | 40 | 3 |
| 2009 | 30 | 1 |
| 2008 | 64 | 1 |
| 2007 | 49 | 0 |
| 2006 | 61 | 0 |
| 2005 | 39 | 0 |
| 2004 | 34 | 0 |
| 2003 | 23 | 0 |
| 2002 | 28 | 0 |
| 2001 | 35 | 0 |
| 2000 | 42 | 0 |
| 1999 | 30 | 1 |
| 1998 | 26 | 0 |
| 1997 | 28 | 0 |
| 1996 | 23 | 0 |
| 1995 | 8 | 0 |
| 1994 | 9 | 0 |
| 1993 | 3 | 0 |
| 1992 | 3 | 0 |
| 1991 | 8 | 0 |
| 1990 | 1 | 0 |
| 1989 | 7 | 0 |
| 1988 | 8 | 1 |
| 1987 | 10 | 2 |
| 1986 | 3 | 0 |
| 1985 | 3 | 1 |
| 1984 | 8 | 1 |
| 1983 | 6 | 0 |
| 1982 | 2 | 1 |
| 1981 | 5 | 1 |
| 1980 | 13 | 2 |
| 1979 | 3 | 0 |
| 1978 | 2 | 0 |
| 1977 | 5 | 2 |
| 1975 | 2 | 0 |
| 1974 | 1 | 0 |
| 1973 | 5 | 1 |
| 1972 | 2 | 1 |
| 1969 | 2 | 1 |
| 1968 | 1 | 0 |
| 1967 | 1 | 1 |
| 1966 | 2 | 1 |
| 1965 | 5 | 2 |
| 1962 | 1 | 0 |
| 1961 | 1 | 0 |
| 1959 | 3 | 2 |
| 1957 | 2 | 0 |
| 1956 | 1 | 1 |
| 1955 | 1 | 0 |
| 1954 | 1 | 1 |
Search your address
See every tornado that passed within 25 miles of a place in Waukesha County, measured to its path.
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