The Impact of Increased Lead Time on Protective Action in Response to Tornadoes

As advances within the Warn-On-Forecast project continue to evolve, residents may start to receive threat information about specific storms at longer lead-times than what is generally provided by the current warning system. However, little work has been done to investigate how longer lead-times (up to an hour) will impact protective actions. This study uses data from the 2019 Severe Weather and Society Survey, an annual survey of US adults, to begin analyzing response actions and how those responses differ with 15, 30 or 60 minutes of lead-time. A variety of text and content analysis will be used to identify what, if any, changes occur when lead-time is increased beyond the current average warning time scales.