Natural Disaster Risk in Lewisville

Natural Hazard Profile: Lewisville, Texas

Lewisville, in Denton County, is a city of 66,913 residents situated in the interior eastern United States. Its diverse climate brings an exceptionally varied climate from humid subtropical in the east to desert in the west, and in particular overlapping tornado, hurricane, flood, and drought seasons. These conditions collectively define the natural hazard environment that Lewisville residents and property owners must navigate.

According to FEMA's National Risk Index, Lewisville carries an overall risk score of 7.6/10, placing it in the high category. Large hail is the dominant natural hazard, with supercell thunderstorms regularly producing damaging hailstones capable of destroying crops, vehicles, and roofs. The area also faces notable exposure to tornado and heat.

Within Texas, Lewisville's risk is, considerably above the 5.6/10 state average. Nationally, it ranks well above the U.S. national average of 4.5/10. FEMA's analysis of Denton County identifies hail as the foremost hazard, followed by tornado and heat. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

With a high natural disaster risk rating, Lewisville residents benefit from taking preparedness seriously. Reviewing insurance coverage for hail and secondary hazards, registering for emergency alerts, and maintaining a household emergency kit are practical steps that can significantly reduce impact during a major event.