Sponsor
This research was funded by the AR Program Phase II, Grant 4600013361, sponsored by the California Department of Water Resources and Forecast Informed Reservoir Operations (FIRO), Grant W912HZ-19-SOI-0027, sponsored by the U.S. Army Corps of Engineers Research and Development Center.
Published In
Bulletin of the American Meteorological Society
Document Type
Post-Print
Publication Date
3-23-2022
Subjects
Atmospherics Rivers -- Analysis
Abstract
The “Valentine’s Day” atmospheric river (AR) event that affected a majority of California during 13–15 February 2019 ranked as an AR3 (Ralph et al. 2019) along most of the California coast and reached AR4 intensity in Southern California. The strong onshore flow and dynamically favorable characteristics of the Valentine’s Day AR produced both an intense and long-duration precipitation event resulting in widespread hydrometeorological impacts across California. Palomar Observatory in northern San Diego County observed >10 in. (>254 mm) of precipitation in 24 h, the highest 24-h accumulation since record keeping began in 1943 (Hatchet et al. 2020
Rights
© 2022 American Meteorological Society.
Locate the Document
DOI
10.1175/BAMS-D-20-0292.1
Persistent Identifier
https://archives.pdx.edu/ds/psu/38035
Citation Details
Hecht, Chad W.; Michaelis, Allison C.; Martin, Andrew C.; Cordeira, Jason M.; Cannon, Forest; and Ralph, F. Martin, "Illustrating Ensemble Predictability across Scales Associated with the 13–15 February 2019 Atmospheric River Event" (2022). Geography Faculty Publications and Presentations. 235.
https://archives.pdx.edu/ds/psu/38035
Description
This is the author’s version of a work that was accepted for publication in Bulletin of the American Meteorological Society. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Bulletin of the American Meteorological Society.