Lewis County, Washington
FEMA National Risk Index threat assessment for Lewis County.
Threat Level
High
NRI Composite Score
18.5
Social Vulnerability
40.2
Community Resilience
52.7
Top Hazards
Volcanic Activity
84.8
Very High
Avalanche
74.7
Very High
Landslide
21.1
Relatively Moderate
Earthquake
17.2
Relatively Moderate
Inland Flooding
12.0
Relatively Moderate
Ice Storm
10.9
Relatively Low
Winter Weather
10.4
Relatively Low
Lightning
7.9
Very Low
Tornado
7.7
Very Low
Strong Wind
6.2
Very Low
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