How Likely Is a Tornado in Greeley County, NE?
Greeley County, NE: what NOAA's tornado record says
Greeley County has recorded 26 tornado touches in NOAA's 76-year database, a rate of roughly one every 2.9 years - our Elevated band. Put another way: Greeley County sees more tornado activity than 61% of US counties. Nebraska has 93 counties in this dataset; Greeley County ranks 66 of them by frequency.
Beyond the frequency band: violent history
3 tornados touching Greeley 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 Greeley County's rating leads to
Nebraska's Nebraska Emergency Management Agency's Residential Tornado Safe Room Program is the number that matters for a Greeley 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
The storm that misses Greeley County outright can still take its power out - outbreak-scale outages across Nebraska are common well beyond the tracked path. A battery-backup unit handles that without a generator's setup or fuel.
What this number is, and is not
One caveat before relying on Greeley County's number: it is county-wide, and it covers about 570 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. Greeley County has about 2,197 residents.