As part of the Monroe County Hazard Mitigation plan development in 2014, the following hazards had initially been identified by Monroe County as having the potential to occur within at least some locations under its jurisdiction:
HAZARD INITIAL ESTIMATED RANKING
1. Severe Winter Weather, Extreme cold, wind, snow, blizzards, and/or ice storms. High
2. Tornado / Severe Thunderstorms High
3. Flood / Flash Flood High
4. Hazardous Materials Incident High
5. Aircraft Accident High
6. Fermi II Nuclear Power Plant High / Medium
7. Terrorism High / Medium
8. Miscellaneous Hazards Medium
9. Resources Shortage Medium
10. Utilities Disruption Medium
11. Earthquake Medium
12. Gas Line Rupture Medium/Low
13. Civil Disturbance Medium/Low
14. War / Enemy Attack Low
15. Dam-Levee Failure Low
Information about these hazards, used for emergency planning, was collected by the county and reassessed for inclusion in planning documents. Supplemental research was performed by staff from the Michigan State Police, Emergency Management and Homeland Security Division as well as Monroe County Emergency Management Division. Adjustments are made regularly to the estimated probability of each hazard, to reflect new information that is obtained. Certain hazards listed above were split into multiple, more detailed hazard listings, while others were changed to better match the information available in other sources. It was considered more appropriate to classify the Fermi II Nuclear Power Plant and other major industry as a community asset to be protected.