Bannock County, ID: Tornado Risk and Shelter Cost
Bannock County, ID: what NOAA's tornado record says
NOAA's Storm Prediction Center has recorded 7 tornado tracks touching Bannock County since 1983 - about one every 10.9 years on average. That puts it in our Low band nationally. Against the rest of the country, that is the 23rd percentile for frequency. Among 44 Idaho counties in this dataset, Bannock County ranks 9 for how often a tornado touches down.
Has Bannock County ever had a violent tornado?
Nothing violent in Bannock County's file: 7 tracks total, topping out at significant (EF2-3) strength on 0 of them, zero at EF4-5.
Paying for it, if Bannock County's history says you should
A storm shelter or in-residence safe room typically runs $2,890-$13,280 nationally, around $7,645 for a common single-family installation. No state-administered rebate program specific to Idaho was confirmed for this site - FEMA's own Hazard Mitigation Assistance grants fund 75% of an approved safe room nationwide, but only some states currently run a homeowner-facing application on top of that.
The gap a shelter does not cover
The storm that misses Bannock County outright can still take its power out - outbreak-scale outages across Idaho are common well beyond the tracked path. A battery-backup unit handles that without a generator's setup or fuel.
County-level, not address-level
Treat this as a county-wide figure, not a prediction for one address. Bannock County covers about 1,112 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. And records from before the 1990s, NOAA notes, undercount weaker tornadoes in areas with less storm-spotting coverage at the time. Bannock County has about 91,010 residents.