How Likely Is a Tornado in McCormick County, SC?
McCormick County, SC: what NOAA's tornado record says
McCormick County has recorded 15 tornado touches in NOAA's 76-year database, a rate of roughly one every 5.1 years - our Moderate band. Put another way: McCormick County sees more tornado activity than 40% of US counties. Among 46 South Carolina counties in this dataset, McCormick County ranks 40 for how often a tornado touches down.
Beyond the frequency band: violent history
14 weak and 1 significant tornadoes make up McCormick County's 15-track record - none violent. NOAA has never logged an EF4 or EF5 crossing this county.
The dollar figure McCormick County's rating leads to
Cost nationally: $2,890-$13,280, about $7,645 typical. South Carolina 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 South Carolina this pass.
What a direct hit isn't required for
The storm that misses McCormick County outright can still take its power out - outbreak-scale outages across South Carolina are common well beyond the tracked path. A battery-backup unit handles that without a generator's setup or fuel.
Wind damage may need its own endorsement
South Carolina 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 McCormick County policy rather than assuming it is included.
What this number is, and is not
One caveat before relying on McCormick County's number: it is county-wide, and it covers about 359 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. McCormick County has about 9,983 residents.