Natural Disaster Risk in Dennison

Natural Hazard Profile: Dennison, Minnesota

Dennison, in Goodhue County, is a small community of about 969 situated in the interior eastern United States. Its continental climate brings some of the harshest winters in the lower 48 and warm summers, and in particular severe blizzards and spring tornado outbreaks. These conditions collectively define the natural hazard environment that Dennison residents and property owners must navigate.

According to FEMA's National Risk Index, Dennison carries an overall risk score of 5.2/10, placing it in the moderate category. High-wind events from severe thunderstorms and derechos are the leading hazard, with damaging gusts capable of downing trees and causing widespread structural damage. The area also faces notable exposure to hail and landslide.

Within Minnesota, Dennison's risk is, near the 5.2/10 state average. Nationally, it ranks above the U.S. national average of 4.5/10. FEMA's analysis of Goodhue County identifies wind as the foremost hazard, followed by hail and landslide. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

With a moderate risk rating, Dennison 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 wind is recommended.