McHenry County, Illinois
FEMA National Risk Index threat assessment for McHenry County.
Threat Level
Guarded
NRI Composite Score
6.6
Social Vulnerability
17.5
Community Resilience
57.5
Top Hazards
Cold Wave
21.9
Relatively Moderate
Tornado
14.7
Relatively Low
Lightning
11.1
Relatively Low
Strong Wind
9.3
Relatively Low
Winter Weather
8.3
Very Low
Heat Wave
7.6
Relatively Low
Ice Storm
6.2
Very Low
Inland Flooding
5.6
Very Low
Landslide
4.5
Very Low
Hail
3.2
Very Low
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