Natural Disaster Risk in Lewis

Natural Hazard Profile: Lewis, New York

Lewis, in Essex County, is a small community of about 628 situated along the northeastern Atlantic Seaboard. Its humid continental climate brings cold winters, warm summers, and significant regional climate variation, and in particular nor'easters and lake-effect snowstorms. These conditions collectively define the natural hazard environment that Lewis residents and property owners must navigate.

According to FEMA's National Risk Index, Lewis carries an overall risk score of 5.8/10, placing it in the moderate category. Landslide and debris flow risk tops the local hazard profile, with steep terrain and periodic heavy rainfall creating conditions for rapid slope failure in vulnerable areas. The area also faces notable exposure to avalanche and lightning.

Within New York, Lewis's risk is, near the 6.1/10 state average. Nationally, it ranks above the U.S. national average of 4.5/10. FEMA's analysis of Essex County identifies landslide as the foremost hazard, followed by avalanche and lightning. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

With a moderate risk rating, Lewis residents are well-served by maintaining standard preparedness practices — an emergency supply kit, awareness of local hazard seasonality, and insurance that covers the top local risks. Periodic review of coverage for landslide is recommended.