Sioux County, Iowa
FEMA National Risk Index threat assessment for Sioux County.
Threat Level
Elevated
NRI Composite Score
10.8
Social Vulnerability
31.0
Community Resilience
59.8
Top Hazards
Cold Wave
26.3
Relatively Moderate
Winter Weather
22.8
Relatively Moderate
Drought
19.7
Relatively Moderate
Tornado
18.5
Relatively Moderate
Ice Storm
17.6
Relatively Moderate
Hail
12.7
Relatively Low
Strong Wind
11.9
Relatively Low
Inland Flooding
8.2
Relatively Low
Lightning
8.0
Very Low
Heat Wave
5.1
Relatively Low
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