Brown County, South Dakota
FEMA National Risk Index threat assessment for Brown County.
Threat Level
Elevated
NRI Composite Score
12.7
Social Vulnerability
34.4
Community Resilience
59.7
Top Hazards
Cold Wave
51.7
Very High
Winter Weather
31.7
Relatively High
Ice Storm
20.2
Relatively Moderate
Strong Wind
18.6
Relatively Moderate
Hail
17.7
Relatively Moderate
Tornado
17.3
Relatively Moderate
Inland Flooding
16.2
Relatively Moderate
Heat Wave
11.3
Relatively Moderate
Lightning
9.9
Relatively Low
Wildfire
5.3
Very Low
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