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- GC32C-05: Storm Regimes in Dam Overtopping Events: A Sub-Regional Atmospheric Analysis Across the Eastern U.S.
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NOLA CC
Author(s):Generic 'disconnected' Message
Hodo Orok, University of Illinois at Urbana Champaign (First Author, Presenting Author)
Deanna Hence, University of Illinois at Urbana Champaign
Dam overtopping happens when intense rainstorms cause water to flow over the top of a dam, which can lead to dangerous flooding. In the Eastern U.S., these events are triggered by different kinds of storms like tropical cyclones and strong fronts, but it’s still unclear how these weather patterns vary by region or lead to overtopping. This study looks at over 300 dam overtopping events between 2003 and 2022 and groups them into four types of storms. We then use a machine learning method to find common patterns in the atmosphere in the 30 days before each event. By dividing the Eastern U.S. into four sub-regions, we can see how these storm types behave differently depending on where they happen. The goal is to better understand how long storms last, how they move, and how they bring in moisture—because these factors affect how much rain falls and whether a dam might be at risk. In the end, our analysis will help communities and engineers plan better for future flood threats, especially as weather patterns become more unpredictable and extreme.
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