Tornado Risk in Milwaukee County, WI
Milwaukee County's tornado history, by the numbers
21 tornado tracks have crossed Milwaukee County since 1958 by NOAA's count, roughly one every 3.6 years - the Moderate band on this site's scale. That is the 53rd percentile nationally for tornado frequency. Among 72 Wisconsin counties in this dataset, Milwaukee County ranks 43 for how often a tornado touches down.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in Milwaukee County in NOAA's 76-year database. Of its 21 recorded tracks, 13 were weak (EF0-1) and 8 significant (EF2-3).
Shelter and safe-room economics
Wisconsin does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Milwaukee County homeowner should expect the full national range: $2,890-$13,280, $7,645 typical.
Power after the storm, not just shelter during it
The storm that misses Milwaukee County outright can still take its power out - outbreak-scale outages across Wisconsin are common well beyond the tracked path. A battery-backup unit handles that without a generator's setup or fuel.
What Milwaukee County's figure does not tell you
Milwaukee County's figure is county-wide, not address-specific. Milwaukee County covers about 241 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. NOAA also documents that older records undercount weaker tornadoes from before Doppler radar became standard. Milwaukee County has about 924,740 residents.