CW3E News

News categories (click to filter): AR Recon, Atmospheric Rivers, CW3E AR Updates, CW3E Partners, Data, Drought, Dust, Extreme Events, FIRO, Instrumentation, Meetings, Missions, People, Publications, Research

CW3E Announces Addition of Environment and Climate Change Canada Model to S2S AR Activity Outlooks (09/27/2022)
CW3E Welcomes Kayden Haleakala (09/26/2022)
CW3E Hosts Outreach Booths at the 1st Annual Yampa Youth Water Festival (09/23/2022)
CW3E AR Update: 19 September 2022 Quick Look (09/19/2022)
CW3E AR Update: 16 September 2022 Outlook (09/16/2022)
CW3E Publication Notice: Unveiling Four Decades of Intensifying Precipitation from Tropical Cyclones Using Satellite Measurements (09/16/22)
CW3E AR Update: 15 September 2022 Outlook (09/15/2022)
CW3E Event Summary: 9-11 September 2022 (09/13/22)
CW3E Director Marty Ralph Discusses ARs on NPR's Here & Now (09/12/22)
CW3E Welcomes Yuan Yang (09/06/22)
CW3E Visits the Wrigley Marine Science Center (09/06/22)
Congratulations to Dr. Sierks – CW3E Graduate Student Successfully Defends Dissertation (09/02/22)
Odds of Reaching 100% Normal Water Year Precipitation: September Update (09/01/22)
CW3E Welcomes Deanna Nash (08/29/22)
Climate Change Projected to Increase Atmospheric River Flood Damages in the United States (08/25/22)
CW3E Director Marty Ralph Writes About Advances in Atmospheric River Science and Applications in September Issue of Scientific American (08/19/22)
CW3E Hosts the First Forecast Informed Reservoir Operations Colloquium (08/10/22)
Odds of Reaching 100% Normal Water Year Precipitation: August Update (08/01/22)
CW3E Publication Notice: Winter Wet-Dry Weather Patterns Driving Atmospheric Rivers and Santa Ana Winds Provide Evidence for Increasing Wildfire Hazard in California (07/26/22)
CW3E Publication Notice: Advances in Sub-seasonal to Seasonal Prediction Relevant to Water Management in the Western United States (07/26/22)
Extended Lack of Atmospheric Rivers Driving California Drought (07/08/22)
Odds of Reaching 100% Normal Water Year Precipitation: July Update (07/01/22)
CW3E Welcomes Ethan Morris (06/30/22)
CW3E Talks Atmospheric Rivers with Solana Beach Day Camp (06/29/22)
CW3E Event Summary: 9-12 June 2022 (06/15/22)
CW3E Publication Notice: Summarizing Relationships Among Landfalling Atmospheric Rivers, Integrated Water Vapor Transport, and California Watershed Precipitation 1982–2019 (06/09/22)
CW3E AR Update: 7 June 2022 Outlook (06/07/2022)
CW3E AR Update: 3 June 2022 Outlook (06/03/2022)
CW3E Welcomes Dr. Jason Cordeira (06/02/22)
Odds of Reaching 100% Normal Water Year Precipitation: June Update (06/01/22)
CW3E Co-hosts 2022 Southwest Extreme Precipitation Symposium (SWEPSYM) (05/09/22)
CW3E Publication Notice: Running a scientific conference during pandemic times (05/04/22)
Odds of Reaching 100% Normal Water Year Precipitation: May Update (05/01/22)
CW3E Welcomes Dr. Mu Xiao (04/29/22)
CW3E and Groundwork San Diego Host Webster Elementary School Students at Scripps Pier to Learn About ARs and Extreme Weather (04/26/22)
CW3E Welcomes Samuel Bartlett (04/19/22)
CW3E AR Update: 18 April 2022 Outlook (04/18/22)
CW3E AR Update: 14 April 2022 Outlook (04/14/22)
AR Recon 2022 Highlighted in ECMWF Spring 2022 Newsletter (04/13/22)
Distribution of Landfalling Atmospheric Rivers over the U.S. West Coast During Water Year 2022: Summary Through March (04/07/22)
CW3E and Yuba Water Agency Visit YES Charter Academy for Lesson on ARs (04/06/22)
CW3E Publication Notice: Increases in Future AR Count and Size: Overview of the ARTMIP Tier 2 CMIP5/6 Experiment (04/05/22)
Odds of Reaching 100% Normal Water Year Precipitation: April Update (04/01/22)
CW3E S2S Outlook: 29 March 2022 (03/29/22)
CW3E quoted in a Washington Post article highlighting extreme precipitation in Southern California (03/29/22)
CW3E AR Update: 24 March 2022 Outlook (03/24/22)
Lake Mendocino Forecast Informed Reservoir Operations Awarded ASCE Region 9 Water Project (03/24/22)
CW3E S2S Outlook: 23 March 2022 (03/23/22)
CW3E demonstrates balloon launch, discusses research with USC students at Wrigley Marine Science Center (03/22/22)
CW3E S2S Outlook: 16 March 2022 (03/16/22)
CW3E S2S Outlook: 9 March 2022 (03/09/22)
CW3E Welcomes Chris Delaney (03/09/22)
CW3E Publication Notice: Future changes of PNA-like MJO teleconnections in CMIP6 models: underlying mechanisms and uncertainty (03/08/22)
CW3E Publication Notice: Atmospheric river precipitation enhanced by climate change: A case study of the storm that contributed to California’s Oroville Dam crisis (03/08/22)
CW3E Event Summary: 26 February - 2 March 2022 (03/03/22)
CW3E S2S Outlook: 2 March 2022 (03/02/22)
CW3E Hosts AR and Forecast Tool Informational Session with USACE Portland District (03/01/22)
Odds of Reaching 100% Normal Water Year Precipitation: March Update (03/01/22)
CW3E AR Update: 28 February 2022 Quick Look (02/28/22)
How can information about atmospheric rivers optimize reservoir operations? - American Society of Civil Engineers (02/24/22)
CW3E AR Update: 24 February 2022 Outlook (02/24/22)
IRI Weather Regime Subseasonal Forecast Product Added to CW3E S2S Webpage (02/23/22)
CW3E S2S Outlook: 23 February 2022 (02/23/22)
CW3E S2S Outlook: 16 February 2022 (02/16/22)
CW3E Publication Notice: First Airborne Measurements with a G-band Differential Absorption Radar (02/15/22)
CW3E Welcomes Xun (Jerry) Zou (02/15/22)
Dr. Michael Dettinger Elected to National Academy of Engineering (02/14/22)
CW3E S2S Outlook: 9 February 2022 (02/09/22)
CW3E Welcomes Hillary Beckmeyer (02/09/22)
CW3E Welcomes Dr. Mohammadvaghef Ghazvinian (02/08/22)
CW3E Welcomes Dr. Agniv Sengupta (02/03/22)
Odds of Reaching 100% Normal Water Year Precipitation: February Update (02/01/22)
AGU press release on CW3E publication: New study improves understanding of Southern California’s intense winter rains (01/27/22)
CW3E S2S Outlook: 25 January 2022 (01/25/22)
CW3E Publication Notice: Improved Forecast Skill through the Assimilation of Dropsonde Observations from the Atmospheric River Reconnaissance Program (01/18/22)
CW3E Publication Notice: Large-scale environments of successive atmospheric river events leading to compound precipitation extremes in California (01/13/22)
CW3E researcher quoted in Nature news feature, "The devastating mudslides that follow forest fires" (01/13/22)
CW3E Publication Notice: A Climatology of Narrow Cold-Frontal Rainbands in Southern California (01/13/22)
CW3E Publication Notice: Atmospheric River Reconnaissance Workshop Promotes Research and Operations Partnership (01/12/22)
CW3E Extreme SWE (Snow) Event Summary: 4 – 7 January 2022 (01/12/22)
CW3E S2S Outlook: 12 January 2022 (01/12/22)
The 2022 Atmospheric River Reconnaissance Season is Underway (01/12/22)
CW3E Welcomes Colin Grudzien (01/11/22)
CW3E Event Summary: 2-8 January 2022 (01/10/22)
CW3E AR Update: 10 January 2022 Outlook (01/10/22)
CW3E Publication Notice: Evaluating the Meteorological Conditions Associated With Dusty Atmospheric Rivers (01/06/22)
CW3E Event Summary: 22 December 2021 - 1 January 2022 (01/05/22)
Marking 25 Years Since the New Year's Flood of 1997 in Yuba County | Yuba Water Agency, CA (01/05/22)
FIRO Featured in AWRA Impact Magazine; Dec 2021 Issue (01/03/22)
Odds of Reaching 100% Normal Water Year Precipitation: January Update (01/01/22)

CW3E AR Update: 22 December 2021 Outlook (12/20/21)
CW3E S2S Outlook: 22 December 2021 (12/22/21)
CW3E AR Update: 21 December 2021 Quick Look (12/21/21)
CW3E AR Update: 20 December 2021 Outlook (12/20/21)
CW3E Publication Notice: Assessment of a post-fire debris flow impacting El Capitan Watershed, Santa Barbara County, California, USA (12/20/21)
CW3E Event Summary: 10-14 December 2021 (12/16/21)
FIRO Highlighted in Maven's Notebook (12/15/21)
CW3E AR Update: 13 December 2021 Quick Look (12/13/21)
CW3E Releases Update to California Watershed Precipitation Forecasts (12/13/21)
CW3E AR Update: 10 December 2021 Outlook (12/10/21)
Recently Graduated CW3E PhD Student Tashiana Osborne Featured in Wavelengths (12/10/21)
CW3E AR Update: 8 December 2021 Outlook (12/08/21)
CW3E S2S Outlook: 8 December 2021 (12/08/21)
CW3E Publication Notice: Advances in the Application and Utility of Subseasonal-to-Seasonal Predictions (12/06/21)
CW3E AR Update: 3 December 2021 Outlook (12/03/21)
Odds of Reaching 100% Normal Water Year Precipitation: December Update (12/01/21)
CW3E AR Update: 29 November 2021 Outlook (11/29/21)
CW3E AR Update: 24 November 2021 Outlook (11/24/21)
Bibliography of AR-Focused Publications (11/23/21)
Congratulations to Dr. Chapman – CW3E Graduate Student Successfully Defends Dissertation (11/23/21)
CW3E Launches New AR Scale Ensemble Forecast Tool (11/19/21)
CW3E Event Summary: 10-16 November 2021 (11/17/21)
CW3E Welcomes Garrett McGurk (11/16/21)
CW3E AR Update: 12 November 2021 Outlook (11/12/21)
CW3E Launches New S2S Precipitation Forecast Product Using Machine Learning Models (11/12/21)
CW3E AR Update: 10 November 2021 Outlook (11/10/21)
CW3E Publication Notice: Genesis Locations of the Costliest Atmospheric Rivers Impacting the Western United States (11/07/21)
CW3E AR Update: 5 November 2021 Outlook (11/05/21)
CW3E Welcomes Lindsey Jasperse (11/04/21)
CW3E AR Update: 3 November 2021 Outlook (11/03/21)
CW3E Welcomes Benjamin Downing (11/03/21)
Odds of Reaching 100% Normal Water Year Precipitation: November Update (11/01/21)
CW3E Publication Notice: Probabilistic Predictions from Deterministic Atmospheric River Forecasts with Deep Learning (10/28/21)
CW3E Event Summary: 19-26 October 2021 (10/28/21)
CW3E Contributes to Drifting buoys deployed off Greenland (10/26/21)
CW3E AR Update: 22 October 2021 Outlook (10/22/21)
CW3E AR Update: 21 October 2021 Quick Look (10/21/21)
CW3E AR Update: 20 October 2021 Outlook (10/20/21)
CW3E Welcomes Shawn Roj (10/19/21)
CW3E AR Update: 19 October 2021 Quick Look (10/19/21)
CW3E AR Update: 18 October 2021 Outlook (10/18/21)
2021 North American Monsoon Recap (10/15/21)
CW3E AR Update: 14 October 2021 Outlook (10/14/21)
CW3E Welcomes Weiming Hu (10/13/21)
CW3E Participates in a Dialogue on Drought in the Upper Colorado’s Yampa River Basin after the First-Ever Shortage Declaration on Lake Mead (10/13/21)
Distribution of Landfalling Atmospheric Rivers over the U.S. West Coast During Water Year 2021: End of Water Year Summary (10/11/21)
CW3E AR Update: 7 October 2021 Outlook (10/07/21)
CW3E Event Summary: 4-5 October 2021 (10/05/21)
CW3E Hydrologist, Edwin Sumargo is highlighted in BAMS (Subscription Required) (10/01/21)
Odds of Reaching 100% Normal Water Year Precipitation: October Update (10/01/21)
CW3E AR Update: 28 September 2021 Outlook (09/28/21)
CW3E Event Summary: 16-19 September 2021 (09/21/21)
CW3E AR Update: 16 September 2021 Outlook (09/16/21)
CW3E AR Update: 13 September 2021 Outlook (09/13/21)
CW3E Hosts 2021 Summer Intern Program (09/03/21)
Odds of Reaching 100% Normal Water Year Precipitation: September Update (09/01/21)
CW3E with Partners with Orange County Water District, US Army Corps of Engineers and CA DWR to Assess FIRO at Prado Dam (08/24/21)
Middle Tennessee Flooding: 21 August 2021 (08/24/21)
CW3E Scientists Propose Policy Action on Western Wildfire and Climate Change (08/10/21)
Odds of Reaching 100% Normal Water Year Precipitation: August Update (08/01/21)
CW3E Publication Notice: A warming climate adds complexity to post-fire hydrologic hazard planning (07/29/21)
CW3E Publication Notice: Object-based Verification of Atmospheric River Predictions in the Northeast Pacific (07/27/21)
CW3E Conducts Radiosonde Launch with UCSD-EarthLab High School Students (07/27/21)
CW3E Hosts Second Annual Atmospheric River Reconnaissance (AR Recon) Workshop (07/20/21)
The Women of AR Recon (07/20/21)
CW3E Publication Notice: Representation of dropsonde-observed atmospheric river conditions in reanalyses (07/16/21)
CW3E Publication Notice: Modulation of Atmospheric Rivers by Mesoscale Frontal Waves and Latent Heating: Comparison of Two U.S. West Coast Events (07/14/21)
Odds of Reaching 100% Normal Water Year Precipitation: July Update (07/01/21)
Congratulations to Dr. Osborne – CW3E Graduate Student Successfully Defends Dissertation (06/29/21)
CW3E Publication Notice: Better Subseasonal-to-Seasonal Forecasts for Water Management (06/25/21)
CW3E AR Update: 10 June 2021 Outlook (06/10/21)
Odds of Reaching 100% Normal Water Year Precipitation: June Update (06/01/21)
What’s causing California’s drought? (05/25/21)
Odds of Reaching 100% Normal Water Year Precipitation: May Update (05/01/21)
CW3E Publication Notice: Evaluation of the Subseasonal Forecast Skill of Floods Associated with Atmospheric Rivers in Coastal Western US Watersheds (04/30/21)
CW3E Publication Notice: A Climatological Study of National Weather Service Watches, Warnings, and Advisories and Landfalling Atmospheric Rivers in the Western U.S. 2006–2018 (04/30/21)
CW3E Publication Notice: Uncertainty in different precipitation products in the case of two atmospheric river events (04/28/21)
Yuba Water and Scripps Institution of Oceanography partner to bring weather station to local school (04/21/21)
CW3E AR Update: 21 April 2021 Outlook (04/21/21)
CW3E Welcomes Jose Martinez-Claros (04/21/21)
CW3E to gain exclusive access to SDSC's Comet Supercomputer to accelerate research on extreme weather and water events (04/20/21)
CW3E Publication Notice: Time Since Burning and Rainfall Characteristics Impact Post-Fire Debris-Flow Initiation and Magnitude (04/15/21)
CW3E End of Winter Summary: WY 2021 (04/07/21)
CW3E Welcomes Qian Cao (04/02/21)
Odds of Reaching 100% Normal Water Year Precipitation: April Update (04/01/21)
CW3E Publication Notice: The role of air‐sea interactions in atmospheric rivers: Case studies using the SKRIPS regional coupled model (03/31/21)
Congratulation to CW3E Graduate Student Tashiana Osborne for being inducted into the Bouchet Honors Society (03/29/21)
CW3E Welcomes Duncan Axisa (03/17/21)
CW3E Precipitation Update: 8 March 2021 Outlook (03/08/21)
CW3E Publication Notice: The Influence of Antecedent Atmospheric River Conditions on Extratropical Cyclogenesis (03/02/21)
Odds of Reaching 100% Normal Water Year Precipitation: March Update (03/01/21)
CW3E Event Summary: 21-23 February 2021 (02/24/21)
CW3E AR Update: 19 February 2021 Outlook (02/19/21)
CW3E Welcomes Ming Pan (02/17/21)
CW3E Middle School Meteorology at EarthLab STEAM Camp (02/15/21)
CW3E AR Update: 12 February 2021 Outlook (02/12/21)
Distribution of Landfalling Atmospheric Rivers over the U.S. West Coast During Water Year 2021: Quarter Year Summary (02/11/21)
A New CW3E Fieldwork Season Begins (02/10/21)
CW3E AR Update: 9 February 2021 Outlook (02/09/21)
CW3E Publication Notice: A climatology of atmospheric rivers in New Zealand (02/09/21)
CW3E Publication Notice: European West Coast atmospheric rivers: A scale to characterize strength and impacts (02/08/21)
CW3E Publication Notice: The Circulation Response of a Two-Dimensional Frontogenetic Model to Optimized Moisture Perturbations (02/08/21)
New Report Confirms Benefits of Forecast-Informed Reservoir Operations at Lake Mendocino (02/04/21)
CW3E Event Summary: 26-29 January 2021 (02/02/21)
CW3E AR Update: 1 February 2021 Quick Look (02/01/21)
Odds of Reaching 100% Normal Water Year Precipitation: February Update (02/01/21)
CW3E AR Update: 28 January 2021 Quick Look (01/28/21)
CW3E AR Update: 26 January 2021 Quick Look (01/26/21)
An atmospheric river is headed our way: The science behind it and precipitation it will bring (01/25/21)
CW3E AR Update: 25 January 2021 Outlook (01/25/21)
CW3E Welcomes Jiabao Wang (01/25/21)
CW3E AR Update: 22 January 2021 Outlook (01/22/21)
CW3E Director featured in NYT about California's drought and ARs (01/22/21)
CW3E Event Summary: 11-13 January 2021 (01/14/21)
CW3E AR Update: 12 January 2021 Outlook (01/12/21)
CW3E AR Update: 11 January 2021 Outlook (01/11/21)
CW3E Event Summary: 1-7 January 2021 (01/08/21)
Odds of Reaching 100% Normal Water Year Precipitation: January Update (01/01/21)

CW3E Event Summary: 17-22 December 2020 (12/23/20)
CW3E Publication Notice: Atmospheric river sectors: Definition and characteristics observed using dropsondes from 2014-2020 CalWater and AR Recon (12/23/20)
CW3E AR Update: 22 December 2020 Outlook (12/22/20)
CW3E Publication Notice: A soil moisture monitoring network to assess controls on runoff generation during atmospheric river events (12/22/20)
CW3E Event Summary: 11-17 December 2020 (12/18/20)
CW3E AR Update: 17 December 2020 Outlook (12/17/20)
Data Science Post-Doctoral Position at CW3E (12/17/20)
CW3E AR Update: 11 December 2020 Outlook (12/11/20)
CW3E highlighted in a recent story on ABC10: "From droughts to flooding, here's how California is trying to better understand atmospheric rivers" (12/10/20)
Lake Mendocino is low, but no water shortages forecast, thanks to new tech (12/09/20)
As fires rage, California center rushes to understand their remedy: Atmospheric rivers (12/07/20)
CW3E AR Update: 7 December 2020 Outlook (12/07/20)
CW3E Welcomes Matthew Simpson (12/05/20)
CW3E Event Summary: 01-04 December 2020 (12/04/20)
Past Yuba Water Agency General Manager Curt Aikens Honored with Association of California Water Agencies’ Lifetime Achievement Award (12/03/20)
Odds of Reaching 100% Normal Water Year Precipitation - December Update (12/01/20)
CW3E Field Team Installs New Meteorological Stations Ahead of WY2021 (11/25/20)
CW3E Welcomes Luke Odell (11/23/20)
CW3E Publication Notice: Subseasonal‐to‐Seasonal Hindcast Skill Assessment of Ridging Events Related to Drought Over the Western United States (11/23/20)
CW3E Event Summary: 16-18 November 2020 (11/20/20)
CW3E AR Update: 16 November 2020 Outlook (11/16/20)
CW3E Publication Notice: The Observed Water Vapor Budget in an Atmospheric River over the Northeast Pacific (11/16/20)
CW3E Publication Notice: Hydrometeorological Characteristics of Ice Jams on the Pemigewasset River in Central New Hampshire (11/15/20)
CW3E AR Update: 12 November 2020 Outlook (11/12/20)
CW3E AR Update: 10 November 2020 Outlook (11/10/20)
CW3E Hosts Fourth Yampa Basin Rendezvous Webinar of 2020: Exploring Uncertainty and Climate Change Impacts in the Yampa River Basin (11/08/20)
CW3E AR Update: 5 November 2020 Outlook (11/05/20)
Four CW3E Researchers Honored with CA DWR's Award For Climate Science Service (11/05/20)
CW3E Launches Public Subseasonal-to-Seasonal (S2S) Experimental Forecast Webpage for Winter 2020-2021 (11/03/20)
CW3E Launches New Forecast Tools for the Atmospheric River Scale (11/02/20)
New Forecast Tool Looks Out to Six Weeks for Early Signs of Ridging Conditions – A Phenomenon Key to Diverting Winter Storms and Promoting U.S. West Coast Drought (11/02/20)
Odds of Reaching 100% Normal Water Year Precipitation - November Update (11/01/20)
CW3E AR Update: 30 October 2020 Outlook (10/30/20)
Distribution of Landfalling Atmospheric Rivers over the U.S. West Coast During Water Year 2020: End of Water Year Summary (10/28/20)
CW3E Director gives virtual talks for UCLA and Stony Brook University (10/26/20)
The Latest on Yuba-Feather Forecast-Informed Reservoir Operations (10/23/20)
2020 North American Monsoon Recap (10/22/20)
CW3E Publication Notice: A Climatology of Atmospheric Rivers and Associated Precipitation for the Seven US National Climate Assessment Regions (10/21/20)
CW3E Publication Notice: Data Gaps within Atmospheric Rivers over the Northeastern Pacific (10/20/20)
CW3E Explores Uncertainty and Climate Change Impacts in the Yampa River Basin Upcoming Webinar (10/20/20)
CW3E Publication Notice: Observations and Predictability of a High-Impact Narrow Cold Frontal Rainband over Southern California on 2 February 2019 (10/16/20)
CW3E AR Update: 14 October 2020 Outlook (10/14/20)
CW3E Publication Notice: Linking Mesoscale Meteorology with Extreme Landscape Response: Effects of an NCFR (10/13/20)
CW3E and Universidad de Chile Virtually Host the International Atmospheric Rivers Conference-Sponsored Symposium (10/12/20)
CW3E Attends BSMAR and SWEPSYM Virtual Events (10/10/20)
CW3E AR Update: 9 October 2020 Outlook (10/09/20)
CW3E Welcomes Sarah Ogle (10/08/20)
CW3E AR Update: 7 October 2020 Outlook (10/07/20)
CW3E AR Update: 6 October 2020 Quick Look (10/06/20)
CW3E AR Update: 5 October 2020 Outlook (10/05/20)
Odds of Reaching 100% Normal Water Year Precipitation - October Update (10/01/20)
CW3E Event Summary: 23-27 September 2020 (09/29/20)
CW3E Welcomes Linghan Li (09/29/20)
Virtual Happy Hour: CW3E Post-Doc Appreciation (09/24/20)
CW3E AR Update: 24 September 2020 Outlook (09/22/20)
CW3E AR Update: 22 September 2020 Quick Look (09/22/20)
CW3E Event Summary: 14-18 September 2020 (09/22/20)
CW3E AR Update: 21 September 2020 Outlook (09/21/20)
CW3E AR Update: 18 September 2020 Outlook (09/18/20)
CW3E To Launch Second Year of Experimental Seasonal Forecasts of Precipitation (09/15/20)
CW3E Explores Shifting Seasons and Precipitation in the Yampa River Basin Upcoming Webinar (09/15/20)
CW3E AR Update: 14 September 2020 Outlook (09/14/20)
CW3E AR Update: 10 September 2020 Outlook (09/10/20)
Odds of Reaching 100% Normal Water Year Precipitation - September Update (09/01/20)
New Water Affiliates Group Forms at Scripps’ Center for Western Weather and Water Extremes (08/24/20)
CW3E Publication Notice: Forecast Informed Reservoir Operations Using Ensemble Streamflow Predictions for a Multi‐Purpose Reservoir in Northern California (08/17/20)
Odds of Reaching 100% Normal Water Year Precipitation - August Update (08/01/20)
Researchers Identify Factor Behind 2017 Oroville Dam Spillways Incident (07/22/20)
CW3E Visiting Researcher Honored at California Extreme Precipitation Symposium (07/21/20)
CW3E Publication Notice: Floods due to atmospheric rivers along the U.S. West Coast: The role of antecedent soil moisture in a warming climate (07/20/20)
CW3E Publication Notice: Freezing Level Forecast Error Can Consume Reservoir Flood Control Storage: Potentials for Lake Oroville and New Bullards Bar Reservoirs in California (07/20/20)
CW3E Publication Notice: Forecast Errors and Uncertainties in Atmospheric Rivers (07/15/20)
CW3E Publication Notice: Dusty Atmospheric Rivers: Characteristics and Origins (07/15/20)
CW3E Publication Notice: Snowmelt causes different limitations on transpiration in a Sierra Nevada conifer forest (07/09/20)
CW3E Hosts Virtual Atmospheric River Reconnaissance Workshop (07/08/20)
Measuring and Managing Seasonal Variability: CW3E Explores the Yampa River Basin (07/07/20)
Odds of Reaching 100% Normal Water Year Precipitation - July Update (07/01/20)
Congratulations to Dr. Fish – CW3E Graduate Student Successfully Defends Dissertation (06/25/20)
CW3E Graduate Student Awarded the UC President’s Dissertation Year Fellowship (06/24/20)
CW3E Graduate Student Honored for Exceptional Research (06/17/20)
CW3E Welcomes Negin Hayatbini (06/15/20)
CW3E Assists in Hosting Virtual Post-Fire Science Symposium (06/11/20)
Characteristics and Impacts of the April 4-11 2020 Cutoff Low Storm in California (06/03/20)
Chollas Creek Community Science Trash-Tography Project (06/02/20)
Odds of Reaching 100% Normal Water Year Precipitation - June Update (06/01/20)
CW3E Publication Notice: The Hydrometeorological Observation Network in California’s Russian River Watershed: Development, Characteristics and Key Findings from 1997 to 2019 (05/27/20)
CW3E Welcomes Douglas Alden (05/27/20)
CW3E Publication Notice: Four Atmospheric Circulation Regimes Over the North Pacific and Their Relationship to California Precipitation on Daily to Seasonal Timescales (05/26/20)
CW3E AR Update: 16-19 May 2020 (05/21/20)
CW3E AR Update: 14 May 2020 Outlook (05/14/20)
Flights Into The Stratosphere Study Changes To Atmospheric Rivers (05/14/20)
CW3E Publication Notice: West Coast Forecast Challenges and Development of Atmospheric River Reconnaissance (05/13/20)
Congratulations to Dr. Demirdjian - CW3E Graduate Student Successfully Defends Dissertation (05/12/20)
CW3E Surface Met Data Now Available on MesoWest and MADIS (05/11/20)
Congratulations to Dr. Voss - CW3E Graduate Student Successfully Defends Dissertation (05/07/20)
CW3E Welcomes Kerstin Paulsson (05/06/20)
CW3E Publication Notice: Recent Changes in United States Extreme 3-Day Precipitation Using the R-CAT Scale (05/06/20)
CW3E Welcomes Nina Oakley (05/01/20)
Odds of Reaching 100% Normal Water Year Precipitation - May Update (05/01/20)
CW3E Delivers First Webinar in Scripps Innovation Series – Recording Now Available Online (04/30/20)
CW3E Student Helps Facilitate Virtual Conference on Sustainability and the Global Pandemic (04/27/20)
CW3E Welcomes Peter Yao (04/27/20)
CW3E Publication Notice: PERSIANN Dynamic Infrared–Rain Rate Model (PDIR) for High-Resolution, Real-Time Satellite Precipitation Estimation (04/23/20)
CW3E Event Summary: 5-10 April 2020 (04/15/20)
CW3E Welcomes Ellen Knappe (04/13/20)
CW3E Publication Notice: Quantifying the Spatial Variability of a Snowstorm Using Differential Airborne Lidar (04/13/20)
AR Recon 2020-Drifting Buoy Project Highlighted in ECMWF Spring 2020 Newsletter (04/10/20)
CW3E Welcomes Wen-Shu Lin (04/09/20)
Distribution of Landfalling Atmospheric Rivers over the U.S. West Coast during Water Year 2020: October through March Update (04/08/20)
CW3E AR Update: 7 April 2020 Summary (04/07/20)
Flying high with NOAA over the Pacific (04/06/20)
CW3E AR Update: 3 April 2020 Outlook (04/03/20)
CW3E Publication Notice: Detection Uncertainty Matters for Understanding Atmospheric Rivers (04/02/20)
Odds of Reaching 100% Normal Water Year Precipitation - April Update (04/01/20)
CW3E Publication Notice: Responses and impacts of atmospheric rivers to climate change (03/24/20)
March Rains Fall Short of a Miracle but a Major Boost for Southern California, Some Help for the Sierras (03/19/20)
CW3E Event Summary: 14-17 March 2020 (03/19/20)
CW3E Event Summary: 9-13 March 2020 (03/17/20)
CW3E Precipitation Update: 14 March 2020 Outlook (03/14/20)
CW3E Precipitation Update: 12 March 2020 Outlook (03/12/20)
New Forecast Tool Looks Three Weeks Ahead for Chances of Atmospheric Rivers (03/12/20)
CW3E AR Update: 11 March 2020 Outlook (03/11/20)
CW3E AR Update: 9 March 2020 Outlook (03/09/20)
CW3E AR Update: 6 March 2020 Outlook (03/06/20)
Odds of Reaching 100% Normal Water Year Precipitation - March Update (03/01/20)
CW3E Event Summary: 21-23 February 2020 (02/25/20)
CW3E Fosters Closer Connections at the Head of the Yampa River in Steamboat Springs, CO (02/24/20)
CW3E AR Update: 21 February 2020 Quick Look (02/21/20)
CW3E AR Update: 20 February 2020 Outlook (02/20/20)
CW3E Welcomes Dr. Peter Gibson (02/20/20)
Three Aircrafts Set to Sample Atmospheric River This Afternoon (02/14/20)
CW3E Welcomes Marian de Orla-Barile (02/14/20)
CW3E Event Summary: 4-8 February 2020 (02/11/20)
CW3E AR Update: 4 February 2020 Outlook (02/04/20)
CW3E Graduate Student Joins Astronaut Jessica Meir for Middle School Outreach Event (02/04/20)
CW3E Event Summary: 26 January – 2 February 2020 (02/03/20)
Odds of Reaching 100% Normal Water Year Precipitation - February Update (02/01/20)
CW3E Publication Notice: Current and Emerging Developments in Subseasonal to Decadal Prediction (01/31/20)
CW3E AR Update: 30 January 2020 Quicklook (01/30/20)
CW3E Publication Notice: Skill of rain-snow level forecasts for landfalling atmospheric rivers: A multi-model model assessment using California’s network of vertically profiling radars (01/30/20)
CW3E AR Update: 29 January 2020 Outlook (01/29/20)
CW3E AR Update: 24 January 2020 Outlook (01/24/20)
International Naval Officers Visit to Hear from Scripps Researchers (01/23/20)
Scripps Institution of Oceanography, Air Force, NOAA to Fly into Atmospheric River Storms Over Pacific Ocean this Winter (01/23/20)
CW3E Publication Notice: Tracking Atmospheric Rivers Globally: Spatial Distributions and Temporal Evolution of Life Cycle Characteristics (01/22/20)
CW3E AR Update: 21 January 2020 Outlook (01/21/20)
CW3E Personnel Present at the 25th United Nations Conference of the Parties (01/17/20)
CW3E AR Update: 15 January 2020 Outlook (01/15/20)
Forecast Informed Reservoir Operations Town Hall Held at the American Meteorological Society 100th Annual Meeting (01/14/20)
CW3E Publication Notice: Ridging Associated with Drought Across the Western and Southwestern United States: Characteristics, Trends, and Predictability Sources (01/07/20)
CW3E Publication Notice: A Case Study of the Physical Processes Associated with the Atmospheric River Initial Condition Sensitivity from an Adjoint Model (01/06/20)
CW3E Publication Notice: Training the Next Generation of Researchers in the Science and Application of Atmospheric Rivers (01/03/20)
Odds of Reaching 100% Normal Water Year Precipitation - January Update (01/01/20)

CW3E Event Summary: 22-27 December 2019 (12/31/19)
CW3E Event Summary: 19-22 December 2019 (12/29/19)
CW3E Graduate Student Speaks at Instituto Dom Luiz in Portugal (12/23/19)
CW3E AR Update: 23 December Quick Look (12/23/19)
Yuba Water Partners With Scripps, DWR ON New Atmospheric River Research (12/23/19)
CW3E Participates in Thriving Earth Exchange Project (12/19/19)
CW3E AR Update: 19 December Quick Look (12/19/19)
CW3E at AGU 2019 (12/18/19)
CW3E AR Update: 17 December 2019 Outlook (12/17/19)
CW3E Scientist Dr. Mike DeFlorio Participates in 2nd Meridional Modes Workshop and High School Science Outreach Activity (12/16/19)
CW3E AR Update: 10 December 2019 Outlook (12/10/19)
CW3E Event Summary: 6-8 December 2019 (12/09/19)
CW3E AR Update: 5 December 2019 Outlook (12/05/19)
CW3E Publication Notice: A new satellite-based global climatology of dust aerosol optical depth (12/05/19)
CW3E Publication Notice: Atmospheric rivers drive flood damages in the western United States (12/05/19)
CW3E AR Update: 4 December Quick Look (12/04/19)
CW3E AR Update: 3 December 2019 Outlook (12/03/19)
CW3E Event Summary: 30 November - 2 December 2019 (12/02/19)
CW3E Publication Notice: Characteristics, Origins, and Impacts of Extreme Summertime Precipitation in the Lake Mead Watershed (12/02/19)
Odds of Reaching 100% Normal Water Year Precipitation - December Update (12/01/19)
CW3E AR Update: 27 November 2019 Event Summary & Outlook (11/27/19)
CW3E AR Update: 26 November Quick Look (11/26/19)
CW3E AR Update: 25 November 2019 Outlook (11/25/19)
CW3E Publication Notice: The Atmospheric River Tracking Method Intercomparison Project (ARTMIP): Quantifying Uncertainties in Atmospheric River Climatology (11/25/19)
CW3E Post-Event Summary: 19-22 November 2019 (11/25/19)
CW3E Field Team Starts Meteorology and Radar Instrument Installations in Feather and Yuba Watersheds (11/22/19)
Water Education Foundation Article Highlights Forecast Informed Reservoir Operations (11/21/19)
CW3E Welcomes Dr. Ty Brandt (11/20/19)
CW3E Outlook: 17-22 Nov Cutoff Low (11/19/19)
CW3E Welcomes Patrick Mulrooney (11/19/19)
CW3E Hosts 11th Annual Winter Outlook Workshop Sponsored by California DWR (11/15/19)
CW3E at Northern California Post-Wildfire Processes Meeting (11/12/19)
CW3E Personnel Greet Delegation Visiting from China (11/12/19)
CW3E Publication Notice: A decade of terrestrial water storage changes across the contiguous United States from GPS and GRACE (11/07/19)
CW3E Post-Event Summary: Upper Colorado River Basin October Snowfall (11/5/19)
CW3E Affiliate, Andrew Martin, Interviewed on Pacific Northwest Atmospheric Rivers (11/4/19)
Odds of Reaching 100% Normal Water Year Precipitation - November Update (11/1/19)
CW3E Publication Notice: Experimental Subseasonal-to-Seasonal (S2S) Forecasting of Atmospheric Rivers Over the Western United States (10/31/19)
Distribution of Landfalling Atmospheric Rivers over the U.S. West Coast During Water Year 2019: End of Water Year Summary (10/23/19)
CW3E Post-Event Summary: 16-22 October 2019 (10/23/19)
CW3E Participates in 3rd ARTMIP Workshop (10/21/19)
CW3E AR Update: 17 October Outlook (10/17/19)
CW3E Publication Notice: SKRIPS v1.0: A Regional Coupled Ocean–Atmosphere Modeling Framework (MITgcm–WRF) Using ESMF/NUOPC, Description and Preliminary Results for the Red Sea (10/15/19)
CW3E Lead Engineer Receives Service Award (10/07/19)
CW3E Welcomes Ava Cooper (10/01/19)
CW3E Post Event Summary: 22-26 Sep 2019 (09/27/19)
CW3E Event Summary: 23-25 Sep 2019 (09/25/19)
CW3E Publication Notice: Atmospheric River Families: Definition and Associated Synoptic Conditions (09/16/19)
CW3E Publication Notice: Linking Bay Area Landslides and Atmospheric Rivers (09/12/19)
CW3E Welcomes Christopher Castellano (09/11/19)
Congratulations to Dr. Lamjiri – CW3E Graduate Student Successfully Defends Dissertation (09/10/19)
CW3E Publication Notice: Improving Atmospheric River Forecasts with Machine Learning (08/27/19)
CW3E Director Participates in Alaska AR Webinar (08/22/19)
Dr. Marty Ralph Shares News of Atmospheric Storm Scale with SBC Water Conference Attendees (08/20/19)
Sixth Annual FIRO Workshop (08/12/19)
CW3E in the News (08/02/19)
CW3E AR Update: 01 August Outlook (08/01/19)
CW3E Publication Notice: 2018 International Atmospheric Rivers Conference: Multi-disciplinary studies and high-impact applications of atmospheric rivers (07/30/19)
CW3E Welcomes Carly Ellis (07/25/19)
CW3E Welcomes Dr. Alison Cobb (07/23/19)
CW3E Publication Notice: Rapid Cyclogenesis from a Mesoscale Frontal Wave on an Atmospheric River: Impacts on Forecast Skill and Predictability during Atmospheric River Landfall (07/16/19)
CW3E Publication Notice: Atmospheric Rivers to Become Even More Dominant Source of California Water Resources and Flooding (07/09/19)
Week 2 of the AR Colloquium is Underway! (07/03/19)
CW3E Publication Notice: The role of hydrological initial conditions on Atmospheric River floods in the Russian River basin (06/27/19)
AR Recon Officially Called for in the National Winter Season Operations Plan (07/01/19)
The AR Colloquium Summer School Kicks-Off (06/27/19)
CW3E Participates in U.S. State Department-sponsored Foreign Ambassador Visit (06/26/19)
CW3E Invited to Present at the California Utility Forecasting Meeting (06/25/19)
CW3E Publication Notice: A critical examination of a newly proposed interhemispheric teleconnection to Southwestern US winter precipitation (06/23/19)
CW3E Director Interviewed for LA Times Article on the Interference of 5G Frequencies with Weather Forecasts (06/20/19)
CW3E Publication Notice: The Effect of El Niño on Flood Damages in the Western United States (06/19/19)
CW3E Participates in ECMWF’s Workshop on Observational Campaigns for Better Weather Forecasts (06/14/19)
AMS Broadcast Conference Attendees Visit CW3E (06/13/19)
CW3E Graduate Student Attends the American Meteorological Society Summer Policy Colloquium (06/11/19)
Climate Projections and Community Resilience: CW3E Explores the Yampa River Basin (06/06/19)
CW3E Graduate Student Returns as an Alumnus for the Rocky Mountain Science and Sustainability Network Summer Academy (05/31/19)
CW3E Graduate Student presents at Workshop on Correlated Extremes (05/31/19)
Sharing Science on World Oceans Day (05/28/19)
CW3E Graduate Student Selected for National Center for Atmospheric Research Graduate Visitor Program, March-May 2019 (05/20/19)
CW3E AR Update: 17 May Outlook (05/17/19)
Atmospheric Rivers Are Back. That’s Not a Bad Thing. (05/16/19)
CW3E AR Update: 16 May Quick Look (05/16/19)
CW3E Publication Notice: A Deficit of Seasonal Temperature Forecast Skill over West Coast Regions in NMME (05/14/19)
CW3E's Anna Wilson Featured on AGU's On the Job Blog (05/14/19)
CW3E AR Update: 13 May Outlook (05/13/19)
Water Year 2019: April Atmospheric Rivers (05/08/19)
FIRO Panel Held at 2019 Annual California Water and Environmental Modeling Forum (05/01/19)
CW3E Participates in UP Summit (04/25/19)
CW3E Hosts Annual Meeting (04/22/19)
AR Recon 2019 - Drifting Buoy Project Highlighted in ECMWF Spring 2019 Newsletter (04/19/19)
Odds of Reaching 100% Water Year Precipitation - April Update (04/11/19)
CW3E AR Update: 9 April Summary (04/09/19)
Water Year 2019: March Atmospheric Rivers (04/09/19)
CW3E Publication Notice: Contrasting Local and Long-Range Transported Warm Ice-Nucleating Particles During an Atmospheric River in Coastal California, USA (04/05/19)
CW3E AR Update: 2 April Outlook (04/02/19)
Southwest Extreme Precipitation Symposium (SWEPSYM) (04/01/19)
CW3E Welcomes Dr. Daniel Steinhoff (03/21/19)
Odds of Reaching 100% Water Year Precipitation - March Update (03/08/19)
Water Year 2019: February Atmospheric Rivers (03/07/19)
CW3E AR Update: 05 March Quick Look (03/05/19)
CW3E AR Update: 25-27 February Post Event Summary (02/28/19)
CW3E AR Update: 27 February Preliminary Summary (02/27/19)
CW3E AR Update: 27 February Quick Look (02/27/19)
CW3E AR Update: 26 February Quick Look (02/26/19)
CW3E AR Update: 25 February Outlook (02/25/19)
CW3E AR Update: 22 February Outlook (02/22/19)
Water Year 2019: January Atmospheric Rivers (02/18/19)
CW3E Welcomes Dr. Allison Michaelis (02/16/19)
CW3E AR Update: 13-15 February Summary (02/15/19)
CW3E AR Update: 14 February Quick Look (02/14/19)
CW3E AR Update: 13 February Quick Look (02/13/19)
CW3E AR Update: 12 February Quick Look (02/12/19)
CW3E AR Update: 11 February Outlook (02/11/19)
Odds of Reaching 100% Water Year Precipitation - February Update (02/08/19)
Congratulations to Four CW3E Members Who Recently Transitioned into New Academic and Private Sector Positions (02/07/19)
Snow Summary: 1-6 February 2019 (02/07/19)
CW3E AR Cat Summary: 02 February 2019 (02/07/19)
CW3E’s Field Campaign Highlighted as Scripps Photo of the Week (02/07/19)
CW3E Releases New Scale to Characterize Strength and Impacts of Atmospheric Rivers (02/05/19)
CW3E AR Update: 02 February 2019 Post Event Summary (02/05/19)
CW3E Fieldwork Season Begins (01/23/19)
Water Year 2019: December Atmospheric Rivers (01/18/19)
CW3E AR Update: 15 January Outlook (01/15/19)
CW3E AR Update: 10 January Summary and Outlook (01/10/19)
Odds of Reaching 100% Water Year Precipitation - January Update (01/10/19)
CW3E AR Update: 7 January Outlook (01/07/19)
Rivers in the Sky: What You Need to Know About Atmospheric River Storms (01/07/19)
CW3E AR Update: 4 January Outlook (01/04/19)
CW3E Publication Notice: Hourly Analyses of the Large Storms and Atmospheric Rivers that Provide Most of California’s Precipitation in Only 10-100 Hours per Year (01/02/19)

CW3E Publication Notice: Hydroclimatic Extremes as Challenges for the Water Management Community: Lessons from Oroville Dam and Hurricane Harvey (12/20/18)
Water Year 2019: November Atmospheric Rivers (12/18/18)
CW3E Graduate Students Participate in the United Nations Convention in Poland (12/14/18)
CW3E AR Update: 5-7 December 2018 Summary (12/11/18)
CW3E participates in California Department of Water Resources (DWR) Workshop: Water Year 2019: Feast or Famine? (12/10/18)
CW3E Publication Notice: Atmospheric Rivers Impacting Northern California and their Modulation by a Variable Climate (12/10/18)
Odds of Reaching 100% Water Year Precipitation - December Update (12/05/18)
CW3E AR Update: 27 November Outlook (11/27/18)
CW3E AR Update: 21 November Outlook (11/21/18)
CW3E AR Update: 20 November Outlook (11/20/18)
CW3E AR Update: 19 November Outlook (11/19/18)
CW3E AR Update: 16 November Outlook (11/16/18)
FIRO Highlighted at Kansas Governor's Conference on the Future of Water in Kansas (11/15/18)
CW3E Welcomes Mike Deflorio (11/14/18)
CW3E Publication Notice: Circulation drivers of atmospheric rivers at the North American West Coast (11/13/18)
Water Year 2019: October Atmospheric Rivers (11/08/18)
Army Corps of Engineers approves request to allow more winter storage in Lake Mendocino (11/08/18)
Odds of Reaching 100% Water Year Precipitation - November Update (11/08/18)
CW3E and DWR Co-Host the Winter Outlook Workshop (11/06/18)
CW3E Graduate Student, Tashiana Osborne, Highlighted in the Scripps Student Spotlight (11/05/18)
CW3E and #ProjectPhenomena Develop K-12 Lessons on CA Precipitation and ARs (11/01/18)
CW3E Welcomes Alisa Valderrama (10/22/18)
CW3E Publication Notice: Quantification of the impacts of Atmospheric Rivers on precipitation over southern South America (10/15/18)
UCAR/NCAR 2nd Annual visit to CW3E (10/12/18)
Distribution of Landfalling Atmospheric Rivers on the U.S. West Coast During Water Year 2018: End of Water Year Summary (10/08/18)
CW3E Publication Notice: The Relationship between Extratropical Cyclone Strength and Atmospheric River Intensity and Position (10/04/18)
CW3E Publication Notice: Origins and Variability of Extreme Precipitation in the Santa Ynez River Basin of Southern California (09/25/18)
CW3E Publication Notice: ARTMIP-Early Start Comparison of Atmospheric River Detection Tools: How Many Atmospheric Rivers Hit Northern California’s Russian River Watershed? (09/17/18)
CW3E Graduate Student Selected for a NASA Goddard Space Flight Center Internship (09/14/18)
CW3E Research Highlighted in a Story on Atmospheric Rivers in Earth Magazine (09/06/18)
CW3E Welcomes Dr. Luca Delle Monache (08/31/18)
CW3E Welcomes Dr. Edwin Sumargo (08/30/18)
CW3E Publication Notice: Assessment of Numerical Weather Prediction Model Reforecasts of the Occurrence, Intensity, and Location of Atmospheric Rivers along the West Coast of North America (08/24/18)
CW3E Publication Notice: Empirical Return Periods of the Most Intense Vapor Transports during Historical Atmospheric River Landfalls on the U.S. West Coast (08/21/18)
CW3E Tables at the Ecologik Program Summer Science Experience (08/13/18)
5th Annual Workshop on Forecast-Informed Reservoir Operations for Lake Mendocino (08/13/18)
CW3E Publication Notice: The Gauging and Modeling of Rivers in the Sky (08/08/18)
Russian River Drought Readiness Report (08/07/18)
CW3E Graduate Student Selected for National Water Center Summer Institute Fellowship (08/03/18)
CW3E Publication Notice: A 22-Year Climatology of Cool Season Hourly Precipitation Thresholds Conducive to Shallow Landslides in California (07/31/18)
CW3E Attends MPAS Tutorial at NCAR (07/30/18)
CW3E Presents at UCSD’s U.S.-China Future Leaders Summer Program (07/26/18)
CW3E Publication Notice: Global Evaluation of Atmospheric River Subseasonal Prediction Skill (07/26/18)
CW3E Graduate Student Serves as GELS Instructor (07/18/18)
CW3E Graduate Student Selected to Participate in the 9th International High Performance Computing Summer School (07/17/18)
CW3E Welcomes Dr. Tom Corringham (07/16/18)
CW3E Director Honored at California Extreme Precipitation Symposium (07/10/18)
CW3E Publication Notice: Atmospheric River Tracking Method Intercomparison Project (ARTMIP): Project Goals and Experimental Design (07/09/18)
CW3E Hosts Student Workshop on AR Forecasting (07/02/18)
CW3E Publication Notice: The Role of Atmospheric Rivers in Extratropical and Polar Hydroclimate (06/28/18)
2nd International Atmospheric Rivers Conference, June 25-28, 2018 (06/22/18)
CW3E Graduate Student Attends the American Meteorological Society Summer Policy Colloquium (06/12/18)
Weather, Water and Society on the Colorado River: CW3E Explores the Yampa River Basin (06/11/18)
Odds of Reaching 100% Water Year Precipitation - June Update (06/08/18)
CW3E Publication Notice: Global Analysis of Climate Change Projection Effects on Atmospheric Rivers (05/24/18)
CW3E Graduate Student Named AGU Voices for Science Advocate (05/21/18)
CW3E Participates in the UP Summit at UC San Diego (05/20/18)
CW3E Undergraduate Student Presents Research at Conference (05/09/18)
CW3E Staff Member Attends Russian River Science Forum (05/03/18)
Odds of Reaching 100% Water Year Precipitation - May Update (05/02/18)
Distribution of Landfalling Atmospheric Rivers on the U.S. West Coast During Water Year 2018 (05/01/18)
CW3E Participates in Second ARTMIP Workshop (04/26/18)
CW3E Director Featured in the Water Zone Podcast on KCAA San Bernardino (04/25/18)
CW3E Hosts Third Annual Meeting (04/20/18)
CW3E Publication Notice: Evaluation of Atmospheric River Predictions by the WRF Model Using Aircraft and Regional Mesonet Observations of Orographic Precipitation and Its Forcing (04/16/18)
Odds of Reaching 100% Water Year Precipitation - April Update (04/10/18)
CW3E AR Update: 04 April 2018 Outlook (04/04/18)
CW3E co-Hosts Inaugural Southwest Extreme Precipitation Symposium (04/03/18)
CW3E AR Update: 03 April 2018 Outlook (04/03/18)
CW3E AR Update: 02 April 2018 Outlook (04/02/18)
International Atmospheric Rivers Conference 2018 – Abstract Submission and Registration Open Now! (03/27/18)
CW3E AR Update: 23 March 2018 Post Event Summary (03/23/18)
CW3E AR Update: 22 March 2018 Outlook (03/22/18)
CW3E AR Update: 21 March 2018 Outlook (03/21/18)
CW3E AR Update: 20 March 2018 Outlook (03/20/18)
CW3E AR Update: 19 March 2018 Outlook (03/19/18)
CW3E AR Update: 16 March 2018 Outlook (03/16/18)
CW3E AR Update: 15 March 2018 Outlook (03/15/18)
CW3E AR Update: 7 March 2018 Outlook (03/07/18)
CW3E Publication Notice: High-Elevation Evapotranspiration Estimates During Drought: Using Streamflow and NASA Airborne Snow Observatory SWE Observations to Close the Upper Tuolumne River Basin Water Balance (03/05/18)
CW3E Publication Notice: Global Assessment of Atmospheric River Prediction Skill (02/27/18)
CW3E Welcomes Dr. Nora Mascioli (02/20/18)
CW3E AR Update: 16 February 2018 Post Event Summary (02/16/18)
CW3E Launches Near Real-Time AR and QPF Forecast Verification Website (02/13/18)
CW3E Publication Notice: Genesis, Pathways, and Terminations of Intense Global Water Vapor Transport in Association with Large-Scale Climate Patterns (02/13/18)
Atmospheric River Reconnaissance - 2018 is Underway (02/08/18)
CW3E Graduate Student Attends the RIKEN International School on Data Assimilation Workshop (02/02/18)
CW3E Publication Notice: Characterizing Drought in California: new drought indices and scenario-testing in support of resource management (02/02/18)
CW3E Publication Notice: An Inter-comparison Between Reanalysis and Dropsonde Observations of the Total Water Vapor Transport in Individual Atmospheric Rivers (02/02/18)
CW3E Represented at the National Council for Science and the Environment National Conference and Global Forum (01/29/18)
CW3E AR Update: 27 January 2018 Outlook (01/27/18)
CW3E Launches Interactive AR Rain Versus Snow Forecast Maps and Watershed Plots (01/26/18)
Meteorological Conditions Associated with the Deadly 9 January 2018 Debris Flow on the Thomas Fire Burn Area Impacting Montecito, CA: A Preliminary Analysis (01/16/18)
CW3E AR Update: 8-10 January 2018 Post Event Summary (01/11/18)
CW3E Fieldwork Season Begins (01/10/18)
Odds of Reaching 100% of Normal Precipitation for Water Year 2018 (January Update) (01/08/18)
CW3E AR Update: 8 January 2018 Outlook (01/08/18)
CW3E AR Update: 3 January 2018 Outlook (01/03/18)

CW3E Director Featured in Weather Channel Article on ARs (12/22/17)
CW3E Welcomes Dr. Ali Hamidi (12/20/17)
Hunting Atmospheric Rivers; UC San Diego Scientists Preparing to Capture Data From Critical Source of California's Water Supply (12/15/17)
CW3E AR Outlook: 14 December 2017 Ridge Update (12/14/17)
Odds of Reaching 100% of Normal Precipitation for Water Year 2018 (December Update) (12/08/17)
CW3E Publication Notice: GPM Satellite Radar Measurements of Precipitation and Freezing Level in Atmospheric Rivers: Comparison with Ground-Based Radars and Reanalyses (12/06/17)
CW3E Publication Notice: Flood runoff in relation to water vapor transport by atmospheric rivers over the western United States (12/01/17)
CW3E AR Update: 20 November 2017 Outlook and Summary (11/20/17)
CW3E AR Update: 17 November 2017 Outlook and Summary (11/17/17)
Lake Mendocino Forecast Informed Reservoir Operations Steering Committee Submit Major Deviation Request (11/15/17)
CW3E AR Update: 14 November 2017 Outlook (11/14/17)
CW3E AR Update: 8 November 2017 Outlook (11/08/17)
CW3E Hosts California DWR Winter Outlook Workshop (11/06/17)
Atmospheric Rivers Highlighted in the U.S. Fourth National Climate Assessment (11/06/17)
CW3E AR Update: 3 November 2017 Outlook (11/03/17)
FIRO Steering Committee Co-Chairs Provide In-depth Briefing to USACE (11/02/17)
CW3E Welcomes Dr. Leah Campbell (11/01/17)
CW3E AR Update: 31 October 2017 Outlook (10/31/17)
CW3E AR Update: 18-23 October 2017 Summary (10/26/17)
CCW3E Graduate Student Participates in 18th Biennial Cyclone Workshop (10/24/17)
CW3E Graduate Student to Participate in United Nations Convention Next Month (10/23/17)
CW3E AR Update: 18 October 2017 Outlook (10/18/17)
CW3E, UCAR, and NCAR Meet to Discuss West-WRF Regional Model Development (10/09/17)
CW3E Graduate Student Accepted into Science Policy Fellows Program (10/03/17)
“Fall” Starts With a Bang in NW Colorado! (10/02/17)
CW3E Releases New Interactive Geospatial Observation and Forecast Maps (09/18/17)
CW3E Publication Notice: Dropsonde Observations of Total Integrated Water Vapor Transport within North Pacific Atmospheric Rivers (09/14/17)
CW3E Publication Notice: The Chiricahua Gap and the Role of Easterly Water Vapor Transport in Southeastern Arizona Monsoon Precipitation (09/13/17)
CW3E Publication Notice: Characterizing the Influence of Atmospheric River Orientation and Intensity on Precipitation Distribution over North-Coastal California (09/12/17)
CW3E Accepted as a National Oceanic and Atmospheric Administration Weather-Ready Nation Ambassador (09/07/17)
CW3E Field Team Beats the Heat, Installs Meteorology and Hydrology Instruments in Russian River Watershed (09/06/17)
CW3E Field Trip to Experience the North American Monsoon in Southern Arizona (08/14/17)
Sonoma County Water Agency Board of Directors Chairwoman, Zane, testifies on FIRO before Senate Committee (08/02/17)
American Geophysical Union Publishes Collection of Atmospheric River Publications in Geophysical Research Letters (07/27/17)
CW3E Publication Notice: Hourly Storm Characteristics along the U.S. West Coast: Role of Atmospheric Rivers in Extreme Precipitation (07/10/17)
CW3E Begins Installation of Instrumentation in the Russian River Watershed (07/07/17)
CW3E Participates in Western States Water Council Visit to UC Davis' Bodega Marine Lab (07/01/17)
CW3E Graduate Students Complete Advanced Study Program in Colorado (06/29/17)
CW3E Welcomes Dr. Aneesh Subramanian (06/29/17)
CW3E Undergraduate Researcher, Cody Poulsen, Awarded a SDEP Excellence Award (06/28/17)
CW3E welcomes Dr. Liza Díaz-Issac (06/19/17)
CW3E AR Update: 06 June 2017 Outlook (06/06/17)
CW3E AR Update: 05 June 2017 Outlook (06/05/17)
CW3E Update: Flood Risk From Snow Melt (05/23/17)
Atmospheric Rivers: Recent Developments and Applications in California (05/19/17)
CW3E Outreach at Local Elementary School (05/15/17)
1st ARTMIP Workshop held at SIO (05/15/17)
Graduate Student Tashiana Osborne Represents UCSD at the California State Capitol (05/03/17)
CW3E Welcomes Dr. Zhenhai Zhang (04/21/17)
May 31 - June 2 Big Data and The Earth Sciences: Grand Challenges Workshop (04/17/17)
CW3E Launches Radiosonde with Potter Valley Elementary School Students (04/16/17)
Key California Precipitation Index Hits Record Yearly Level After Only 7 Months (04/13/17)
CW3E Shares Science with Prospective Students at Triton Day (04/13/17)
CW3E Publication Notice: High-Impact Hydrologic Events and Atmospheric Rivers in California: An Investigation using the NCEI Storm Events Database (04/12/17)
CW3E AR Update: 11 April 2017 Outlook (04/11/17)
How Many Atmospheric Rivers Have Hit the U.S. West Coast During the Remarkably Wet Water Year 2017? (04/06/17)
Odds of Reaching 100% Water Year Precipitation - April Update (04/06/17)
CW3E AR Update: 04 April 2017 Outlook (04/04/17)
CW3E Visits the NWS California Nevada River Forecast Center (03/31/17)
CW3E AR Update: 16 March 2017 Outlook (03/16/17)
Odds of Reaching 100% Water Year Precipitation - Mar Update (03/08/17)
Director of CW3E to Present at Birch Aquarium (03/07/17)
Current Winter Setting a New California-Wide Record Precipitation Accumulation (03/07/17)
CW3E AR Update: 28 February 2017 Post Event Summary and Outlook (02/28/17)
CW3E AR Update: 22 February 2017 Post Event Summary (02/22/17)
CW3E AR Update: 17 February 2017 Outlook (02/17/17)
CW3E AR Update: 16 February 2017 Outlook (02/16/17)
CW3E AR Update: 15 February 2017 Outlook (02/15/17)
CW3E AR Update: 13 February 2017 Outlook (02/13/17)
CW3E AR Update: 09 February 2017 Outlook (02/09/17)
Recent AR Reaches R-Cat 2 Strength (02/09/17)
Odds of Reaching 100% of Normal Precipitation for Water Year 2017 (February update) (02/09/17)
CW3E AR Update: 08 February 2017 Outlook (02/08/17)
CW3E AR Update: 07 February 2017 Outlook (02/07/17)
CW3E AR Update: 06 February 2017 Outlook (02/06/17)
CW3E AR Update: 01 February 2017 Outlook (02/01/17)
Water year 2017 Precipitation (01/24/17)
CW3E AR Update: 19 January 2017 Outlook (01/19/17)
CW3E AR Update: 17 January 2017 Outlook (01/17/17)
CW3E AR Update: 11 January 2017 Outlook (01/11/17)
CW3E in the News (01/10/17)
Where was the most extreme precipitation yesterday in the West? (01/10/17)
CW3E AR Update: 9 January 2017 Outlook and Summary (01/09/17)
Odds of Reaching 100% of Normal Precipitation for Water Year 2017 (January update) (01/09/17)
CW3E AR Update: 6 January 2017 Outlook (01/06/17)
CW3E welcomes Dr. Minghua Zheng (01/06/17)
CW3E AR Update: 5-10 January 2017 Outlook (01/05/17)
CW3E AR Update: 4-10 January 2017 Outlook (01/05/17)

CW3E AR Update: 23-25 December 2016 Outlook (12/22/16)
CW3E AR Update: 16 December 2016 Outlook (12/16/16)
CW3E AR Update: 15-17 December 2016 Outlook (12/15/16)
CW3E AR Update: 14-17 December 2016 Outlook (12/14/16)
CW3E AR Update: 13-17 December 2016 Outlook (12/13/16)
Odds of Reaching 100% of Normal Precipitation for Water Year 2017 (December update) (12/9/16)
CW3E AR Update: 9-13 December 2016 Outlook (12/9/16)
CW3E partners with CDWR, CGS, USGS, and WRCC to assess post-fire debris flow hazards in CA (12/2/16)
CW3E Water Year 2017 Precipitation (December Update) (12/1/16)
Publication Notice: CalWater Field Studies Designed to Quantify the Roles of Atmospheric Rivers and Aerosols in Modulating U.S. West Coast Precipitation in a Changing Climate (11/28/16)
October 2016 Summary: Record Breaking Precipitation (11/23/16)
Publication Notice: Forecasting Atmospheric Rivers during CalWater 2015 (11/22/16)
CW3E Hosts Winter Outlook Workshop with California DWR (11/18/16)
CW3E AR Update: Post-Event Summary: 4-9 November 2016 (11/14/16)
CW3E Congratulates Undergraduate Itzel Gomez on Research Award (11/08/16)
CW3E AR Update: 4-9 November, 2016 Outlook (11/04/16)
CW3E AR Update: Post-Event Summary: 14-17 October 2016 (10/20/16)
CW3E Welcomes Chad Hecht (10/17/16)
CW3E Welcomes Dr. Forest Cannon (10/17/16)
CW3E Water Year 2016 Summary (10/15/16)
CW3E AR Update: 14 October 2016 Summary and Outlook (10/14/16)
CW3E AR Update: 13-15 October 2016 Outlook (10/12/16)
CW3E Represented at NWS San Diego's WeatherFest 2016 (09/22/16)
CW3E Publication Notice: Historical and Future Relationship Between Large Storms and Droughts in California (08/16/16)
CW3E Welcomes Dr. Brian Henn (08/08/16)
CW3E Welcomes Dr. Rachel Weihs (08/08/16)
The First International Atmospheric Rivers Conference (08/08/16)
Congressional Briefing on “A New Frontier in Water Operations: Atmospheric Rivers, Subseasonal-to-Seasonal Predictions and Weather Forecasting Technology” (07/27/16)
Publication Notice: Extreme Daily Precipitation in the Northern California Upper Sacramento River Watershed Requires a Combination of a Landfalling Atmospheric River and a Sierra Barrier Jet (07/18/16)
Lake Mendocino Forecast-Informed Reservoir Operations (FIRO) Workshop Summary (07/05/16)
CW3E Represented in Recent Policy and Program Meetings (06/08/16)
CW3E Welcomes Dr. Anna Wilson (06/01/16)
Publication Notice: An Airborne and Ground-Based Study of a Long-Lived and Intense Atmospheric River with Mesoscale Frontal Waves Impacting California during CalWater-2014 (05/10/16)
CW3E Welcomes Dr. Scott Sellars (04/25/16)
CW3E AR Update – Post-Event Summary: 7-10 April 2016 (04/14/16)
Odds of reaching 100% of normal precipitation for water year 2016 in California (April update) (04/11/16)
CW3E AR Update – Outlook: 7-10 April 2016 (04/7/16)
Publication Notice: Predictability of horizontal water vapor transport relative to precipitation: Enhancing situational awareness for forecasting western U.S. extreme precipitation and flooding (3/17/16)
CW3E AR Update – Post-Event Summary: 5-6 March 2016 (03/11/16)
CW3E R-Cat Alerts: Automated Notification of Heavy Precipitation Events (03/10/16)
CW3E AR Update – Outlook: 10-11 March 2016 (03/10/16)
Odds of reaching 100% of normal precipitation for water year 2016 in California (March update). (03/10/16)
CW3E AR Update – Outlook: 5-7 March 2016 (03/04/16)
CW3E AR Update – Outlook: 3 March 2016 (03/03/16)
The Washington Post Capital Weather Gang features CW3E and AR mission (02/18/16)
Reconnaissance Flights Into Atmospheric Rivers Aim To Improve West Coast Storm Predictions (02/13/16)
Odds of reaching 100% of normal precipitation for water year 2016 in California. (02/08/16)
Setting the stage for a global science of atmospheric rivers (01/25/16)
AR storms impact northern California: January 12-15 (01/15/16)
Recent Rainy Week in San Diego County (01/08/16)
A Preliminary Synopsis of the 5 January 2016 Atmospheric River (01/05/16)

First International Atmospheric Rivers Conference (12/22/14)
California Storm of 10-12 December 2014: A Preliminary Synopsis ... (12/12/14)
Rain for Thirsty California: USGS Front Page story (12/10/14)
Publication Notice: The role of atmospheric rivers in anomalous snow accumulation ... (12/4/14)
Short diagnosis of development of a tropic surge, cut-off low and AR features (12/2/14)
Flooding in the Pacific Northwest: R-CAT 2 event (11/30/14)
Publication Notice: Climatological Characteristics of Atmospheric Rivers ... (10/31/14)
El Nino Impacts and Outlook: October 2014 (10/29/14)
Heavy rain in the Pacific northwest (10/27/14)
California Drought: 4th driest water year depletes reservoirs (10/01/14)
CW3E Spotlight: CW3E welcomes Dr. Julie Kalansky (09/28/14)
Publication Notice: An Airborne Study of an Atmospheric River over the Subtropical Pacific ... (09/14)
CW3E Spotlight: CW3E welcomes Dr. David Lavers (09/12/14)
CW3E Spotlight: CW3E welcomes Dr. Andrew Martin (08/12/14)
NASA NEWS program selects joint JPL+CW3E AR proposal (08/28/14)
CW3E congratulates Mike Dettinger - 2014 AGU Fellow (07/30/14)
Sonoma County Water Agency (SCWA) and SIO establish a Cooperative Agreement (07/14)
CW3E Spotlight: CW3E welcomes Reuben Demirdjian (06/24/14)
CalWater 2015 Advanced Planning Workshop at Scripps (06/10/14)
Publication Notice: Chemical properties of insoluble precipitation residue particles (05/27/14)
CalWater2-ACAPEX Workshop at Scripps (05/02/14)
ClimateWire feature story on CW3E and Director Marty Ralph (05/01/14)
Publication Notice: Atmospheric Rivers and Greenland Melt Episodes (04/28/14)
Publication Notice: Vision for Future Observing Networks (04/25/14)
Atmospheric Rivers: Drought Busters (04/17/14)
Who Rules California's Russian River? (03/31/14)
UPDATED: Researcher Mike Dettinger examines likelihood of drought end (03/21/14)
Dust Storms Enhancing California's Precipitation (03/12/14)
Federal Rules Complicate Water Management (02/27/14)
Scripps researchers take flight (02/24/14)
CW3E Spotlight: CW3E Welcomes Dr. Ryan Spackman (02/12/14)
Researcher Mike Dettinger examines likelihood of drought end (02/11/14)
Atmospheric River impacting California (02/09/14)
CA Governor declares drought emergency (01/17/14)