Flood & Hurricane Risk in Wyoming
Wyoming, landlocked and far from any ocean, has zero hurricane risk of any kind -- this record discloses that plainly rather than manufacturing a hurricane-shaped framing that doesn't fit the state. Wyoming's real severe-weather hazards run in a different direction entirely: significant wildfire risk, the nation's highest average wind speed feeding severe winter storms, real river-flood risk from snowmelt and flash flooding, and comparatively modest tornado and earthquake exposure.
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Learn moreNo hurricane exposure, genuinely
Wyoming borders no ocean and sits roughly 1,000 miles from the nearest coastline in any direction -- there is no hurricane season, no storm-surge risk, and no tropical-system exposure of any kind to plan for here, a real, structural difference from Gulf- and Atlantic-coast relocation states this project has profiled.
Real river-flood risk, concentrated by season and geography
FEMA's National Risk Index has recorded 315 historical inland flood events in Wyoming and puts the state's expected annual riverine-flood loss at $146.7 million -- concentrated primarily along the North Platte, Wind, Bighorn, and Snake rivers. Flooding follows two real, distinct patterns: spring and early-summer snowmelt driving mountain rivers to dangerous levels, and summer thunderstorms producing sudden flash floods, particularly in canyon terrain. Wyoming has received 7 federal flood disaster declarations, most recently in 2023, 2017, 2015, and 2010.
Significant wildfire risk statewide
Wyoming carries real, significant wildfire risk this record discloses directly: one source ranked Wyoming 2nd among the Lower 48 states for fire risk, with the state averaging 600-700 wildfires per year, while a separate risk-index source scored the state's wildfire risk more moderately at 5 out of 10 -- a real cross-source divergence this record does not resolve to one number. Risk concentrates in forested mountain and foothill terrain (near Jackson, Cody, and Sheridan) rather than uniformly across the drier high-plains basins.
The nation's windiest state, and real winter-storm severity
Wyoming ranks 1st in the nation for average wind speed (12.9 mph statewide; Cheyenne alone averages 18 mph annually, with winter gusts commonly reaching 50-60 mph), which drives genuinely severe, statewide winter-storm risk -- one risk-index source scored winter storm as Wyoming's single highest hazard category (9 out of 10). Blizzard and whiteout conditions are a real, recurring feature of Wyoming winters, particularly on open highway stretches like I-80 across southern Wyoming.
Modest tornado and earthquake exposure
Wyoming carries real but genuinely limited tornado risk (scored 3/10 by one source), concentrated in the eastern plains, and moderate earthquake risk (also scored 3/10, assessed across all 23 counties by FEMA) -- neither approaching the severity of the state's wildfire and winter-storm hazards.
Key takeaways
- Wyoming, landlocked, has zero hurricane exposure of any kind -- a real, structural difference from coastal relocation states.
- Wyoming carries real river-flood risk from spring snowmelt and summer flash flooding, concentrated on the North Platte, Wind, Bighorn, and Snake rivers -- 7 federal flood disaster declarations to date.
- Wyoming carries real, significant wildfire risk (one source ranks it 2nd in the Lower 48) and is the nation's windiest state, feeding severe winter-storm conditions.
- Tornado and earthquake risk are real but comparatively modest, concentrated in the eastern plains and assessed moderately statewide, respectively.
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