Keweenaw County, MI Tornado Risk & Storm Shelter Cost
Keweenaw County, MI: what NOAA's tornado record says
Since 1987, NOAA has logged 2 tornado tracks crossing Keweenaw County - one about every 38.5 years, which lands it in our Minimal band. Nationally, Keweenaw County ranks at the 7th percentile for tornado frequency. Within Michigan alone, Keweenaw County ranks 82 of 83 counties for tornado frequency.
Keweenaw County's EF4-5 history
Keweenaw County's record has no EF4-5 tornado - its 2 tracks split 2 weak and 0 significant. That does not rule one out in the future, only that none has been recorded since 1950.
What a storm shelter costs near Keweenaw County
For a Keweenaw County homeowner, budget $2,890-$13,280 for a shelter or safe room ($7,645 typical) - this pass found no Michigan-specific rebate on top of FEMA's underlying 75% national cost-share program.
The outage nobody plans for
The storm that misses Keweenaw County outright can still take its power out - outbreak-scale outages across Michigan are common well beyond the tracked path. A battery-backup unit handles that without a generator's setup or fuel.
Read this before you rely on it
This is a county-level figure, not a per-address probability. Keweenaw County covers about 540 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. Keweenaw County has about 2,161 residents.