Green County, WI Tornado Risk & Storm Shelter Cost
How likely is a tornado in Green County, WI?
Since 1955, NOAA has logged 35 tornado tracks crossing Green County - one about every 2.2 years, which lands it in our Elevated band. Nationally, Green County ranks at the 75th percentile for tornado frequency. Among 72 Wisconsin counties in this dataset, Green County ranks 17 for how often a tornado touches down.
Green County's EF4-5 history
Green County's record has no EF4-5 tornado - its 35 tracks split 26 weak and 8 significant. That does not rule one out in the future, only that none has been recorded since 1950.
What a storm shelter costs near Green County
For a Green County homeowner, budget $2,890-$13,280 for a shelter or safe room ($7,645 typical) - this pass found no Wisconsin-specific rebate on top of FEMA's underlying 75% national cost-share program.
The outage nobody plans for
Tornado outbreaks routinely knock out power across Wisconsin for days, separately from any single house getting hit. A portable battery bank keeps a fridge, phone chargers and a radio running through that gap - cheaper and faster to set up than a generator.
Read this before you rely on it
This is a county-level figure, not a per-address probability. Green County covers about 584 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. Pre-radar-era records (before the 1990s) are also documented by NOAA as undercounting weaker tornadoes in sparsely-instrumented areas. Green County has about 37,183 residents.