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Workshop on Seasonal to Sub-Seasonal (S2S) Precipitation Forecasting 




Date: December 5, 2017

Time: 10:00 am - 3:00 pm 

Location: Orange County Water District

18700 Ward St, Fountain Valley, CA 92708



Workshop Sponsors


PowerPoint Presentations

What's Important About S2S Forecasting? 

There is a recognized need to improve weather forecasting beyond current capabilities. Operational weather models can forecast precipitation events about 2 weeks out, but water managers need more information to make long-term plans for storing and distributing water supply.  Precipitation projections for longer time horizons, up to a year, would be of great benefit to water professionals in intensively managed environments such as California and the Western states, where periods of prolonged drought alternate with intense rainfall events. As our capabilities for longer term projections improve, so will the effectivness of strategies to manage water infrastructure including dams, flood storage, and reservoirs. 


Meeting Logistics


Location:  We met in the Board Room of the Orange County Water District (OCWD) at 18700 Ward Street, Fountain Valley, CA 92708.    


Registration: Registration is now closed.


Continuing Education:  The State Water Resources Control Board’s Division of Drinking Water approved Contact Hours for this event.  Operators can receive up to four (4) Contact Hours for a watershed management topic. Those who would like to receive contact hours must sign in and sign out at the workshop registration desk. A completion certificate will be emailed to participants following the workshop. To learn more about drinking water operator certification continuing education guidelines, consult the CA SWRCB Operator Certification website at http://www.waterboards.ca.gov/drinking_water/certlic/occupations/DWopcert.shtml





For questions regarding registration, travel, and hotel accommodations, contact Dawna Hernandez at (714) 378-3278 or dhernandez@nwri-usa.org.


For questions on the program, contact Suzanne Sharkey at ssharkey@nwri-usa.org or (714) 378-8236.



Additional Resources on S2S Precipitation Forecasting


Presentations from the May 2017 Workshop on Improving Seasonal and Sub-Seasonal Precipitation Forecasting for Drought Preparedness to Support Water Management Decision Making
California-Nevada Climate Applications Program, S2S Fact Sheet, November 2016

Proceedings from the May 2015 Workshop on Improving Seasonal and Sub-Seasonal Precipitation Forecasting for Drought Preparedness http://www.water.ca.gov/waterconditions/docs/Seasonal-Forecasting-Workshop-Report_web.pdf 


World Meteorological Association, Subseasonal to Seasonal Project http://s2sprediction.net/ 


California Department of Water Resources (DWR) http://www.water.ca.gov/ 


California Drought Portal http://drought.ca.gov/ 


U.S. Drought Portal (Drought Monitor for CA) https://www.drought.gov/drought/california


California Water Action Plan (2016 Update) http://resources.ca.gov/california_water_action_plan/


Federal Action Plan of the National Drought Resilience Partnership https://www.whitehouse.gov/sites/default/files/docs/drought_resilience_action_plan_2016_final.pdf


U.S. EPA page on Basics of Water Resilience