Tornado Risk in Platte County, WY
Platte County, WY: what NOAA's tornado record says
50 tornado tracks have crossed Platte County since 1955 by NOAA's count, roughly one every 1.5 years - the High band on this site's scale. That is the 88th percentile nationally for tornado frequency. Among 23 Wyoming counties in this dataset, Platte County ranks 4 for how often a tornado touches down.
The number that matters more than frequency
No violent (EF4-5) tornado has been recorded in Platte County in NOAA's 76-year database. Of its 50 recorded tracks, 40 were weak (EF0-1) and 2 significant (EF2-3).
Shelter and safe-room economics
Wyoming does not currently have a confirmed state rebate layered on top of FEMA's 75% Hazard Mitigation cost-share, so a Platte County homeowner should expect the full national range: $2,890-$13,280, $7,645 typical.
Power after the storm, not just shelter during it
8,512 people live in Platte 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.
What Platte County's figure does not tell you
Platte County's figure is county-wide, not address-specific. Platte County covers about 2,081 square miles, so a single touch here counts the same as a single touch in a county a fraction of that size. NOAA also documents that older records undercount weaker tornadoes from before Doppler radar became standard. Platte County has about 8,512 residents.