West Coast Forecast Challenges and Development of Atmospheric River Reconnaissance

Water management and flood control are major challenges in the western United States. They are heavily influenced by atmospheric river (AR) storms that produce both beneficial water supply and hazards; for example, 84% of all flood damages in the West (up to 99% in key areas) are associated with ARs...

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Bibliographic Details
Published in:Bulletin of the American Meteorological Society 2020-08, Vol.101 (8), p.E1357-E1377
Main Authors: Ralph, F. Martin, Cannon, Forest, Tallapragada, Vijay, Davis, Christopher A., Doyle, James D., Pappenberger, Florian, Subramanian, Aneesh, Wilson, Anna M., Lavers, David A., Reynolds, Carolyn A., Haase, Jennifer S., Centurioni, Luca, Ingleby, Bruce, Rutz, Jonathan J., Cordeira, Jason M., Zheng, Minghua, Hecht, Chad, Kawzenuk, Brian, Monache, Luca Delle
Format: Article
Language:English
Subjects:
Airborne remote sensing
Airborne sensing
Aircraft
Atmospheric models
Buoys
Coasts
Computational fluid dynamics
Data assimilation
Data collection
Debris flow
Drifting buoys
Dropsondes
Emergency preparedness
Emergency procedures
Errors
Extreme weather
Flood control
Flood damage
Flood forecasting
Flood management
Floods
Forecast errors
Forecast verification
Lead time
Methods
Position errors
Precipitation
Pressure sensors
Radio occultation
Reconnaissance
Regions
Satellites
Seasons
Spillways
Storms
Water management
Water supply
Watersheds
Weather forecasting
Wildfires
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Summary:Water management and flood control are major challenges in the western United States. They are heavily influenced by atmospheric river (AR) storms that produce both beneficial water supply and hazards; for example, 84% of all flood damages in the West (up to 99% in key areas) are associated with ARs. However, AR landfall forecast position errors can exceed 200 km at even 1-day lead time and yet many watersheds are
ISSN:0003-0007
1520-0477
DOI:10.1175/BAMS-D-19-0183.1