Harrison County, OH Tornado Risk & Storm Shelter Cost
How likely is a tornado in Harrison County, OH?
Since 1965, NOAA has logged 5 tornado tracks crossing Harrison County - one about every 15.2 years, which lands it in our Minimal band. Nationally, Harrison County ranks at the 16th percentile for tornado frequency. Ohio has 88 counties in this dataset; Harrison County ranks 84 of them by frequency.
Harrison County's EF4-5 history
Harrison County's record has no EF4-5 tornado - its 5 tracks split 2 weak and 3 significant. That does not rule one out in the future, only that none has been recorded since 1950.
What a storm shelter costs near Harrison County
For a Harrison County homeowner, budget $2,890-$13,280 for a shelter or safe room ($7,645 typical) - this pass found no Ohio-specific rebate on top of FEMA's underlying 75% national cost-share program.
The outage nobody plans for
A direct hit is not required for Harrison County to lose power - outbreak-wide outages across Ohio regularly reach homes and businesses well outside the actual tracks. A battery bank covers that gap without a generator's fuel and venting needs.
Read this before you rely on it
This is a county-level figure, not a per-address probability. Harrison County covers about 402 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. Harrison County has about 14,042 residents.