FEMA relative scores

Avalanche Risk Rankings

The highest relative avalanche scores among FEMA county-equivalent areas represented in the city directory.

One FEMA area can contain several covered cities. Each area appears once below, with links to its city pages. The score is a relative comparison measure, not the annual chance of a avalanche.

  1. #1

    Pierce County, WA

    Very High

    96.2

    relative score

  2. Relatively High

    95.7

    relative score

  3. Relatively High

    92.8

    relative score

  4. #4

    Anchorage Municipality, AK

    Relatively High

    91.3

    relative score

  5. #5

    Utah County, UT

    Relatively High

    89.9

    relative score

  6. #6

    Whatcom County, WA

    Relatively High

    88.9

    relative score

  7. #7

    Snohomish County, WA

    Relatively Moderate

    87.0

    relative score

  8. #8

    Weber County, UT

    Relatively Moderate

    86.1

    relative score

  9. #9

    Placer County, CA

    Relatively Moderate

    83.2

    relative score

  10. #10

    Boulder County, CO

    Relatively Low

    69.2

    relative score

  11. #11

    Missoula County, MT

    Relatively Low

    68.8

    relative score

  12. #12

    Bonneville County, ID

    Relatively Low

    61.5

    relative score

  13. #13

    Yakima County, WA

    Relatively Low

    60.6

    relative score

  14. #14

    Kootenai County, ID

    Relatively Low

    59.6

    relative score

  15. #15

    Larimer County, CO

    Relatively Low

    57.2

    relative score

  16. #16

    Mesa County, CO

    Relatively Low

    56.7

    relative score

  17. #17

    Deschutes County, OR

    Relatively Low

    56.3

    relative score

  18. #18

    Jefferson County, CO

    Relatively Low

    54.8

    relative score

  19. #19

    Davis County, UT

    Relatively Low

    53.4

    relative score

  20. #20

    Cache County, UT

    Relatively Low

    52.9

    relative score

  21. #21

    Benton County, WA

    Relatively Low

    51.9

    relative score

  22. #22

    Spokane County, WA

    Very Low

    43.3

    relative score

  23. #23

    Washoe County, NV

    Very Low

    35.1

    relative score

  24. #24

    Tulare County, CA

    Very Low

    34.1

    relative score

  25. #25

    Los Angeles County, CA

    Very Low

    33.7

    relative score

Other hazard rankings

Source: FEMA National Risk Index v1.19.0, released March 2023. Hazard figures cover FEMA county-equivalent areas.

Read the methodology β†’