Primary Convener:
Yonas Demissie, Washington State University

Convener:
Cameron Bracken, Pacific Northwest National Laboratory
Hongxiang Yan, Pacific Northwest National Laboratory
Andrew Verdin, USACE Risk Management Center
Jeffrey Arnold, ERT Corp
Kathleen Holman, Bureau of Reclamation Denver
Jeremy Giovando, Pacific Northwest National Laboratory
Chris Frans, Bureau of Reclamation

Chair:
Yonas Demissie, Washington State University
Cameron Bracken, Pacific Northwest National Laboratory

The ongoing impacts of hydrologic extremes, such as floods, droughts, and compound events, pose growing challenges for communities, infrastructure, and ecosystems. These challenges are further compounded by aging infrastructure, evolving societal needs, and the ongoing difficulty of integrating scientific advances into operational decision-making. This session highlights interdisciplinary efforts aimed at bridge the gap between cutting-edge hydrometeorological research and real-world water resource applications. We welcome contributions that demonstrate both methodological innovation and practical application, including but not limited to, probabilistic forecasting, data assimilation, artificial intelligence, physics-based modeling, and risk-informed decision-making. Of particular interest are studies that emphasize collaborative development of tools with end users, effective communication of uncertainty, and successful transitions from research to operations (R2O). By convening scientists, engineers, practitioners, and policy experts, the session seeks to showcase integrated, stakeholder-informed approaches that strengthen system resilience, support adaptive and risk-informed water management, and enhance preparedness for hydrologic extremes.

Index Terms
1817 Extreme events
1833 Hydroclimatology
4343 Preparedness and planning
6309 Decision making under uncertainty

Cross-Listed:
NH - Natural Hazards
A - Atmospheric Sciences
GC - Global Environmental Change

Co-Organized Sessions:
Global Environmental Change
Science and Society
Natural Hazards

Suggested Itineraries:
Science Communications
Machine Learning and AI
Community and People-Powered Science
Global Impacts‚ Solutions‚ & Policies

Neighborhoods:
3. Earth Covering
1. Science Nexus