Lyon County, MN Tornado Risk & Storm Shelter Cost
Lyon County, MN: what NOAA's tornado record says
Since 1955, NOAA has logged 29 tornado tracks crossing Lyon County - one about every 2.6 years, which lands it in our Elevated band. Nationally, Lyon County ranks at the 67th percentile for tornado frequency. Within Minnesota alone, Lyon County ranks 34 of 87 counties for tornado frequency.
Lyon County's EF4-5 history
Lyon County has 2 violent (EF4-5) tornados on record. FEMA centers its safe-room case on exactly this strength, not on how often a county gets touched - a hardened room is the difference between a code-built house surviving an EF4-5 or not.
What a storm shelter costs near Lyon County
For a Lyon County homeowner, budget $2,890-$13,280 for a shelter or safe room ($7,645 typical) - this pass found no Minnesota-specific rebate on top of FEMA's underlying 75% national cost-share program.
The outage nobody plans for
Power loss after a tornado outbreak in Minnesota often reaches homes the storm itself never touched. A battery-backup unit covers the outage without the fuel and venting a generator needs.
Read this before you rely on it
This is a county-level figure, not a per-address probability. Lyon County covers about 714 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. Lyon County has about 25,577 residents.