Tornado Risk in Vermilion County, IL
How likely is a tornado in Vermilion County, IL?
70 tornado tracks have crossed Vermilion County since 1955 by NOAA's count, roughly one every 1.1 years - the High band on this site's scale. That is the 95th percentile nationally for tornado frequency. Illinois has 102 counties in this dataset; Vermilion County ranks 10 of them by frequency.
The number that matters more than frequency
Yes. Vermilion County has recorded 1 EF4 or EF5 tornado - the strength FEMA's own safe-room guidance is built around, because a standard code-built house is not expected to survive those winds without a hardened room. A county can be lower-frequency overall and still carry this history.
Shelter and safe-room economics
Illinois does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Vermilion County homeowner should expect the full national range: $2,890-$13,280, $7,645 typical.
Power after the storm, not just shelter during it
The storm that misses Vermilion County outright can still take its power out - outbreak-scale outages across Illinois are common well beyond the tracked path. A battery-backup unit handles that without a generator's setup or fuel.
What Vermilion County's figure does not tell you
Vermilion County's figure is county-wide, not address-specific. Vermilion County covers about 898 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. Vermilion County has about 71,106 residents.