Tornado Risk in Harrison County, TX
How likely is a tornado in Harrison County, TX?
84 tornado tracks have crossed Harrison County since 1955 by NOAA's count, roughly one every 0.9 years - the High band on this site's scale. That is the 97th percentile nationally for tornado frequency. Texas has 254 counties in this dataset; Harrison County ranks 18 of them by frequency.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in Harrison County in NOAA's 76-year database. Of its 84 recorded tracks, 55 were weak (EF0-1) and 28 significant (EF2-3).
Shelter and safe-room economics
Texas does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Harrison County homeowner should expect the full national range: $2,890-$13,280, $7,645 typical.
Power after the storm, not just shelter during it
A direct hit is not required for Harrison County to lose power - outbreak-wide outages across Texas regularly reach homes and businesses well outside the actual tracks. A battery bank covers that gap without a generator's fuel and venting needs.
Wind damage may need its own endorsement
Texas is one of a handful of states where insurers can write wind/hail damage out of a standard homeowners policy - tornado damage may not be fully covered without a separate wind endorsement. Worth confirming directly on a Harrison County policy rather than assuming it is included.
What Harrison County's figure does not tell you
Harrison County's figure is county-wide, not address-specific. Harrison County covers about 900 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. Harrison County has about 71,370 residents.