How Likely Is a Tornado in Warren County, PA?
Warren County, PA: what NOAA's tornado record says
Warren County has recorded 18 tornado touches in NOAA's 76-year database, a rate of roughly one every 4.2 years - our Moderate band. Put another way: Warren County sees more tornado activity than 47% of US counties. Pennsylvania has 67 counties in this dataset; Warren County ranks 22 of them by frequency.
Beyond the frequency band: violent history
1 tornado touching Warren County reached violent (EF4-5) strength since 1950. That single fact carries more weight for the shelter decision than the county's overall frequency band.
The dollar figure Warren County's rating leads to
Cost nationally: $2,890-$13,280, about $7,645 typical. Pennsylvania 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 Pennsylvania this pass.
What a direct hit isn't required for
37,373 people live in Warren County, and a tornado outbreak's power loss usually reaches far more of Pennsylvania than the tracks themselves touch. A portable battery unit is the faster, no-fuel way to bridge that outage.
What this number is, and is not
One caveat before relying on Warren County's number: it is county-wide, and it covers about 884 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. Warren County has about 37,373 residents.