Tornado Risk in Henry County, TN
Henry County, TN: what NOAA's tornado record says
15 tornado tracks have crossed Henry County since 1971 by NOAA's count, roughly one every 5.1 years - the Moderate band on this site's scale. That is the 41st percentile nationally for tornado frequency. Among 95 Tennessee counties in this dataset, Henry County ranks 50 for how often a tornado touches down.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in Henry County in NOAA's 76-year database. Of its 15 recorded tracks, 10 were weak (EF0-1) and 5 significant (EF2-3).
Shelter and safe-room economics
Tennessee does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Henry County homeowner should expect the full national range: $2,890-$13,280, $7,645 typical.
Power after the storm, not just shelter during it
Tornado outbreaks routinely knock out power across Tennessee for days, separately from any single house getting hit. A portable battery bank keeps a fridge, phone chargers and a radio running through that gap - cheaper and faster to set up than a generator.
What Henry County's figure does not tell you
Henry County's figure is county-wide, not address-specific. Henry County covers about 562 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. NOAA also documents that older records undercount weaker tornadoes from before Doppler radar became standard. Henry County has about 32,883 residents.