How Likely Is a Tornado in Clay County, NE?
Clay County's tornado history, by the numbers
Clay County has recorded 53 tornado touches in NOAA's 76-year database, a rate of roughly one every 1.4 years - our High band. Put another way: Clay County sees more tornado activity than 89% of US counties. Nebraska has 93 counties in this dataset; Clay County ranks 19 of them by frequency.
Beyond the frequency band: violent history
2 tornados touching Clay 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 Clay County's rating leads to
Nebraska's Nebraska Emergency Management Agency's Residential Tornado Safe Room Program is the number that matters for a Clay County homeowner: 75% of an approved shelter, cutting the typical $2,890-$13,280 national range to about $722.5-$3,320 net.
What a direct hit isn't required for
6,103 people live in Clay County, and a tornado outbreak's power loss usually reaches far more of Nebraska 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 Clay County's number: it is county-wide, and it covers about 572 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. Clay County has about 6,103 residents.