Sullivan County, IN: Tornado Risk and Shelter Cost
How likely is a tornado in Sullivan County, IN?
NOAA's Storm Prediction Center has recorded 11 tornado tracks touching Sullivan County since 1957 - about one every 6.9 years on average. That puts it in our Low band nationally. Against the rest of the country, that is the 31st percentile for frequency. Indiana has 92 counties in this dataset; Sullivan County ranks 80 of them by frequency.
Has Sullivan County ever had a violent tornado?
Nothing violent in Sullivan County's file: 11 tracks total, topping out at significant (EF2-3) strength on 4 of them, zero at EF4-5.
Paying for it, if Sullivan County's history says you should
A storm shelter or in-residence safe room typically runs $2,890-$13,280 nationally (around $7,645 typical). Indiana's Indiana Department of Homeland Security's Residential Safe Room Program covers 75% of an approved project, up to $5,000 - bringing a typical job down to roughly $722.5-$8,280 out of pocket, when the program is currently funded.
The gap a shelter does not cover
The storm that misses Sullivan County outright can still take its power out - outbreak-scale outages across Indiana 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. Sullivan County covers about 447 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. Sullivan County has about 20,768 residents.