How Likely Is a Tornado in York County, PA?
York County, PA: what NOAA's tornado record says
York County has recorded 34 tornado touches in NOAA's 76-year database, a rate of roughly one every 2.2 years - our Elevated band. Put another way: York County sees more tornado activity than 74% of US counties. Among 67 Pennsylvania counties in this dataset, York County ranks 4 for how often a tornado touches down.
Beyond the frequency band: violent history
21 weak and 13 significant tornadoes make up York County's 34-track record - none violent. NOAA has never logged an EF4 or EF5 crossing this county.
The dollar figure York 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
Tornado outbreaks routinely knock out power across Pennsylvania 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 this number is, and is not
One caveat before relying on York County's number: it is county-wide, and it covers about 904 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. York County has about 471,240 residents.