Day County, South Dakota
FEMA National Risk Index threat assessment for Day County.
Threat Level
Elevated
NRI Composite Score
11.6
Social Vulnerability
53.8
Community Resilience
56.9
Top Hazards
Cold Wave
62.5
Very High
Winter Weather
31.3
Relatively High
Hail
20.6
Relatively Moderate
Strong Wind
19.7
Relatively Moderate
Ice Storm
17.6
Relatively Moderate
Tornado
15.8
Relatively Low
Inland Flooding
11.5
Relatively Moderate
Heat Wave
10.0
Relatively Moderate
Wildfire
9.4
Relatively Low
Landslide
8.5
Relatively Low
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