Big Horn County, MT Tornado Risk & Storm Shelter Cost
Big Horn County, MT: what NOAA's tornado record says
Since 1965, NOAA has logged 11 tornado tracks crossing Big Horn County - one about every 6.9 years, which lands it in our Low band. Nationally, Big Horn County ranks at the 31st percentile for tornado frequency. Within Montana alone, Big Horn County ranks 17 of 56 counties for tornado frequency.
Big Horn County's EF4-5 history
Big Horn County's record has no EF4-5 tornado - its 11 tracks split 11 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 Big Horn County
For a Big Horn County homeowner, budget $2,890-$13,280 for a shelter or safe room ($7,645 typical) - this pass found no Montana-specific rebate on top of FEMA's underlying 75% national cost-share program.
The outage nobody plans for
12,796 people live in Big Horn County, and a tornado outbreak's power loss usually reaches far more of Montana than the tracks themselves touch. A portable battery unit is the faster, no-fuel way to bridge that outage.
Read this before you rely on it
This is a county-level figure, not a per-address probability. Big Horn County covers about 4,998 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. Big Horn County has about 12,796 residents.