Tornado Risk in Onondaga County, NY
Onondaga County, NY: what NOAA's tornado record says
10 tornado tracks have crossed Onondaga County since 1963 by NOAA's count, roughly one every 7.6 years - the Low band on this site's scale. That is the 30th percentile nationally for tornado frequency. Within New York alone, Onondaga County ranks 20 of 62 counties for tornado frequency.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in Onondaga County in NOAA's 76-year database. Of its 10 recorded tracks, 8 were weak (EF0-1) and 2 significant (EF2-3).
Shelter and safe-room economics
New York does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Onondaga 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 Onondaga County to lose power - outbreak-wide outages across New York 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 Onondaga County's figure does not tell you
Onondaga County's figure is county-wide, not address-specific. Onondaga County covers about 778 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. Onondaga County has about 469,812 residents.