Jerome County, ID Tornado Risk & Storm Shelter Cost
Jerome County's tornado history, by the numbers
Since 1988, NOAA has logged 6 tornado tracks crossing Jerome County - one about every 12.7 years, which lands it in our Minimal band. Nationally, Jerome County ranks at the 19th percentile for tornado frequency. Idaho has 44 counties in this dataset; Jerome County ranks 14 of them by frequency.
Jerome County's EF4-5 history
Jerome County's record has no EF4-5 tornado - its 6 tracks split 5 weak and 1 significant. That does not rule one out in the future, only that none has been recorded since 1950.
What a storm shelter costs near Jerome County
For a Jerome County homeowner, budget $2,890-$13,280 for a shelter or safe room ($7,645 typical) - this pass found no Idaho-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 Jerome County to lose power - outbreak-wide outages across Idaho 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. Jerome County covers about 598 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. Jerome County has about 26,056 residents.