Sweetwater County, WY: Tornado Risk and Shelter Cost
Sweetwater County's tornado history, by the numbers
NOAA's Storm Prediction Center has recorded 26 tornado tracks touching Sweetwater County since 1960 - about one every 2.9 years on average. That puts it in our Elevated band nationally. Against the rest of the country, that is the 62nd percentile for frequency. Within Wyoming alone, Sweetwater County ranks 11 of 23 counties for tornado frequency.
Has Sweetwater County ever had a violent tornado?
Nothing violent in Sweetwater County's file: 26 tracks total, topping out at significant (EF2-3) strength on 0 of them, zero at EF4-5.
Paying for it, if Sweetwater County's history says you should
A storm shelter or in-residence safe room typically runs $2,890-$13,280 nationally, around $7,645 for a common single-family installation. No state-administered rebate program specific to Wyoming was confirmed for this site - FEMA's own Hazard Mitigation Assistance grants fund 75% of an approved safe room nationwide, but only some states currently run a homeowner-facing application on top of that.
The gap a shelter does not cover
The storm that misses Sweetwater County outright can still take its power out - outbreak-scale outages across Wyoming are common well beyond the tracked path. A battery-backup unit handles that without a generator's setup or fuel.
County-level, not address-level
Treat this as a county-wide figure, not a prediction for one address. Sweetwater County covers about 10,427 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. And records from before the 1990s, NOAA notes, undercount weaker tornadoes in areas with less storm-spotting coverage at the time. Sweetwater County has about 41,273 residents.