Carroll County, MO: Tornado Risk and Shelter Cost
Carroll County's tornado history, by the numbers
NOAA's Storm Prediction Center has recorded 17 tornado tracks touching Carroll County since 1955 - about one every 4.5 years on average. That puts it in our Moderate band nationally. Against the rest of the country, that is the 44th percentile for frequency. Among 115 Missouri counties in this dataset, Carroll County ranks 88 for how often a tornado touches down.
Has Carroll County ever had a violent tornado?
Yes, 1 time: Carroll County has an EF4-5 tornado on record. Wherever that history exists, FEMA's safe-room case applies regardless of how often the county gets touched overall.
Paying for it, if Carroll 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 Missouri 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 Carroll County outright can still take its power out - outbreak-scale outages across Missouri 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. Carroll County covers about 695 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. Carroll County has about 8,414 residents.