High‐impact hydrologic events and atmospheric rivers in California: An investigation using the NCEI Storm Events Database

Abstract Atmospheric rivers (ARs) are long, narrow corridors of enhanced integrated water vapor and integrated vapor transport that can result in high‐impact hydrologic events (HIHEs) including floods, flash floods, and debris flows. This study examined the relationship between HIHEs and ARs in Cali...

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Main Authors: Allison M. Young, Klint T. Skelly, Jason M. Cordeira
Format: Article
Language:English
Published: Wiley 2017-04-01
Series:Geophysical Research Letters
Subjects:
Online Access:https://doi.org/10.1002/2017GL073077
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author Allison M. Young
Klint T. Skelly
Jason M. Cordeira
author_facet Allison M. Young
Klint T. Skelly
Jason M. Cordeira
author_sort Allison M. Young
collection DOAJ
description Abstract Atmospheric rivers (ARs) are long, narrow corridors of enhanced integrated water vapor and integrated vapor transport that can result in high‐impact hydrologic events (HIHEs) including floods, flash floods, and debris flows. This study examined the relationship between HIHEs and ARs in California for 10 water years by using the National Centers for Environmental Information Storm Events Database and a catalog of landfalling ARs provided by Rutz et al. (). Results illustrated that HIHEs related to floods and debris flows are commonly associated with ARs during the cold season across Northern California, whereas HIHEs related to flash floods are commonly not associated with ARs during the warm season across Southern California. Composite analyses illustrated that HIHEs associated with landfalling ARs are associated with synoptic‐scale flow patterns that support southwesterly water vapor flux that aligns favorably with California coastal topography to maximize upslope flow and orographic precipitation.
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series Geophysical Research Letters
spelling doaj-art-ede46bbb2c1b407088f24e4f1d2ba74a2025-08-20T03:49:46ZengWileyGeophysical Research Letters0094-82761944-80072017-04-014473393340110.1002/2017GL073077High‐impact hydrologic events and atmospheric rivers in California: An investigation using the NCEI Storm Events DatabaseAllison M. Young0Klint T. Skelly1Jason M. Cordeira2Department of Atmospheric Science and Chemistry Plymouth State University Plymouth New Hampshire USANOAA/NWS Pueblo Forecast Office Pueblo Colorado USADepartment of Atmospheric Science and Chemistry Plymouth State University Plymouth New Hampshire USAAbstract Atmospheric rivers (ARs) are long, narrow corridors of enhanced integrated water vapor and integrated vapor transport that can result in high‐impact hydrologic events (HIHEs) including floods, flash floods, and debris flows. This study examined the relationship between HIHEs and ARs in California for 10 water years by using the National Centers for Environmental Information Storm Events Database and a catalog of landfalling ARs provided by Rutz et al. (). Results illustrated that HIHEs related to floods and debris flows are commonly associated with ARs during the cold season across Northern California, whereas HIHEs related to flash floods are commonly not associated with ARs during the warm season across Southern California. Composite analyses illustrated that HIHEs associated with landfalling ARs are associated with synoptic‐scale flow patterns that support southwesterly water vapor flux that aligns favorably with California coastal topography to maximize upslope flow and orographic precipitation.https://doi.org/10.1002/2017GL073077atmospheric riverfloodflash flooddebris flow
spellingShingle Allison M. Young
Klint T. Skelly
Jason M. Cordeira
High‐impact hydrologic events and atmospheric rivers in California: An investigation using the NCEI Storm Events Database
Geophysical Research Letters
atmospheric river
flood
flash flood
debris flow
title High‐impact hydrologic events and atmospheric rivers in California: An investigation using the NCEI Storm Events Database
title_full High‐impact hydrologic events and atmospheric rivers in California: An investigation using the NCEI Storm Events Database
title_fullStr High‐impact hydrologic events and atmospheric rivers in California: An investigation using the NCEI Storm Events Database
title_full_unstemmed High‐impact hydrologic events and atmospheric rivers in California: An investigation using the NCEI Storm Events Database
title_short High‐impact hydrologic events and atmospheric rivers in California: An investigation using the NCEI Storm Events Database
title_sort high impact hydrologic events and atmospheric rivers in california an investigation using the ncei storm events database
topic atmospheric river
flood
flash flood
debris flow
url https://doi.org/10.1002/2017GL073077
work_keys_str_mv AT allisonmyoung highimpacthydrologiceventsandatmosphericriversincaliforniaaninvestigationusingthenceistormeventsdatabase
AT klinttskelly highimpacthydrologiceventsandatmosphericriversincaliforniaaninvestigationusingthenceistormeventsdatabase
AT jasonmcordeira highimpacthydrologiceventsandatmosphericriversincaliforniaaninvestigationusingthenceistormeventsdatabase