How Likely Is a Tornado in Knox County, TN?
How likely is a tornado in Knox County, TN?
Knox County has recorded 17 tornado touches in NOAA's 76-year database, a rate of roughly one every 4.5 years - our Moderate band. Put another way: Knox County sees more tornado activity than 46% of US counties. Tennessee has 95 counties in this dataset; Knox County ranks 43 of them by frequency.
Beyond the frequency band: violent history
13 weak and 4 significant tornadoes make up Knox County's 17-track record - none violent. NOAA has never logged an EF4 or EF5 crossing this county.
The dollar figure Knox County's rating leads to
Cost nationally: $2,890-$13,280, about $7,645 typical. Tennessee has no state rebate program confirmed here; FEMA's underlying 75% cost-share exists nationwide, but applying through a state program is what usually makes it real, and none was found for Tennessee this pass.
What a direct hit isn't required for
A direct hit is not required for Knox County to lose power - outbreak-wide outages across Tennessee 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 Knox County's number: it is county-wide, and it covers about 508 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. Knox County has about 506,748 residents.