Snohomish County, Washington

FEMA National Risk Index threat assessment for Snohomish County.

Threat Level

High
Percentile: 92th of all US counties

NRI Composite Score

18.8
Relatively Moderate

Social Vulnerability

23.5
Very Low

Community Resilience

54.3
Relatively Moderate

Top Hazards

Volcanic Activity
53.6
Relatively High
Avalanche
28.9
Relatively Moderate
Landslide
25.6
Relatively High
Coastal Flooding
24.9
Relatively Moderate
Earthquake
17.6
Relatively Moderate
Lightning
11.8
Relatively Low
Tornado
9.1
Relatively Low
Ice Storm
8.3
Very Low
Heat Wave
7.4
Relatively Low
Winter Weather
6.9
Very Low

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