Natural Disaster Risk in Des Moines

Natural Hazard Profile: Des Moines, Iowa

Des Moines, in Polk County, is a city of approximately 36,548 residents situated in the interior eastern United States. Its humid continental climate brings cold winters, hot summers, and frequent severe weather, and in particular a tornado-active spring season. These conditions collectively define the natural hazard environment that Des Moines residents and property owners must navigate.

Des Moines's overall natural disaster risk is rated 7.7/10 (High) by FEMA's National Risk Index. Strong wind is the primary natural hazard, with the area exposed to downburst winds from convective storms that can exceed 80 mph and cause hurricane-level localized damage. Secondary hazards include hail and tornado.

Within Iowa, Des Moines's risk is, considerably above the 5.4/10 state average. Nationally, it ranks well above the U.S. national average of 4.5/10. FEMA's analysis of Polk County identifies wind as the foremost hazard, followed by hail and tornado. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

Des Moines's high risk designation reflects meaningful exposure to natural hazards. Residents should verify that their insurance covers the area's primary risks, prepare a family emergency plan, and stay informed about seasonal hazard peaks through local weather and emergency management services.