Lyman County, South Dakota
FEMA National Risk Index threat assessment for Lyman County.
Threat Level
Moderate
NRI Composite Score
6.7
Social Vulnerability
46.5
Community Resilience
57.3
Top Hazards
Cold Wave
32.0
Relatively High
Winter Weather
19.5
Relatively Moderate
Ice Storm
13.3
Relatively Low
Hail
12.2
Relatively Low
Landslide
12.2
Relatively Low
Strong Wind
11.7
Relatively Low
Drought
10.5
Relatively Low
Tornado
10.1
Relatively Low
Lightning
7.9
Very Low
Heat Wave
7.4
Relatively Low
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