Fremont County, WY: Tornado Risk and Shelter Cost
Fremont County's tornado history, by the numbers
NOAA's Storm Prediction Center has recorded 22 tornado tracks touching Fremont County since 1962 - about one every 3.5 years on average. That puts it in our Moderate band nationally. Against the rest of the country, that is the 55th percentile for frequency. Wyoming has 23 counties in this dataset; Fremont County ranks 13 of them by frequency.
Has Fremont County ever had a violent tornado?
Nothing violent in Fremont County's file: 22 tracks total, topping out at significant (EF2-3) strength on 4 of them, zero at EF4-5.
Paying for it, if Fremont 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
39,721 people live in Fremont County, and a tornado outbreak's power loss usually reaches far more of Wyoming than the tracks themselves touch. A portable battery unit is the faster, no-fuel way to bridge that outage.
County-level, not address-level
Treat this as a county-wide figure, not a prediction for one address. Fremont County covers about 9,184 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. Fremont County has about 39,721 residents.