How Likely Is a Tornado in Putnam County, IN?
Putnam County's tornado history, by the numbers
Putnam County has recorded 22 tornado touches in NOAA's 76-year database, a rate of roughly one every 3.5 years - our Moderate band. Put another way: Putnam County sees more tornado activity than 55% of US counties. Among 92 Indiana counties in this dataset, Putnam County ranks 43 for how often a tornado touches down.
Beyond the frequency band: violent history
16 weak and 6 significant tornadoes make up Putnam County's 22-track record - none violent. NOAA has never logged an EF4 or EF5 crossing this county.
The dollar figure Putnam County's rating leads to
Nationally, storm shelters and safe rooms run $2,890-$13,280. Because Putnam County is in Indiana, the Indiana Department of Homeland Security's Residential Safe Room Program can cut that by 75% (capped at $5,000), to about $722.5-$8,280 net - check current funding status before counting on it.
What a direct hit isn't required for
A direct hit is not required for Putnam County to lose power - outbreak-wide outages across Indiana regularly reach homes and businesses well outside the actual tracks. A battery bank covers that gap without a generator's fuel and venting needs.
What this number is, and is not
One caveat before relying on Putnam County's number: it is county-wide, and it covers about 481 square miles, so a single touch counts the same as one in a county a fraction of that size. Weaker pre-1990s tornadoes are also documented as undercounted in NOAA's own record. Putnam County has about 37,804 residents.