FL24

This report describes the results of an annual nationwide survey on flooding in the United States. The 2024 Flooding and Society Survey (FL24) was designed by the Institute for Public Policy Research and Analysis (IPPRA) at the University of Oklahoma and the Nurture Nature Center (NNC). It is the inaugural survey in an annual series and follows the same format as IPPRA’s Severe Weather and Society Surveys (WX), Tropical Cyclones and Society Surveys (TC), and Winter Weather and Society Surveys (WW). FL24 was fielded June 12 – June 18, 2024, using an online questionnaire that was completed by 1,200 U.S. adults (age 18+) who were recruited from an Internet panel that matches the characteristics of the U.S. population as estimated in the U.S. Census. Following the format of IPPRA’s other surveys and incorporating NNC’s past work in the flooding domain, the FL24 survey establishes baseline measures of the extent to which U.S. adults receive, understand, and respond to flood forecasts and warnings, while also asking questions that address different types of flooding (including coastal and flash flooding). Questions like these will be asked annually to track changes over time. Other questions specific to FL24 evaluated the understanding and use of a flagship NWS flood product, the Weather Prediction Center’s Excessive Rainfall Outlook, and impact-based warning comprehension associated with flooding events.