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HomeWater CodeDiv. 1Ch. 2.5Art. 8§ 347 Atmospheric River Forecast Program

§ 347 Atmospheric River Forecast Program

Water Code·California
AI Summary·Official Text·Key Terms·Related Statutes·References
AI SummaryVerified

§ 347 Atmospheric River Forecast Program

Key Takeaways

  • •California created a program to study and predict big storms called 'atmospheric rivers' to better manage water and prevent floods.
  • •The program will use new tools and research to improve how reservoirs are operated, helping to store more water and protect against floods.
  • •The information from this program will be shared with other agencies to help them prepare for storms and manage water better.

Example

A big storm is coming to California, and the state needs to decide how much water to keep in a reservoir.

The program helps predict how much rain will fall and when, so the state can release water from the reservoir ahead of time to prevent flooding but still save enough water for people to use later.

AI-generated — May contain errors. Not legal advice. Always verify source.

Official Source
View on CA.gov

§ 347 Atmospheric River Forecast Program

(a) The Atmospheric Rivers Research and Forecast Improvement Program: Enabling Climate Adaptation Through Forecast-Informed Reservoir Operations and Hazard Resiliency (AR/FIRO) Program is hereby established in the Department of Water Resources. (b) (1) The department shall research, develop, and implement new observations, prediction models, novel forecasting methods, and tailored decision support systems to improve predictions of atmospheric rivers and their impacts on water supply, flooding, post-wildfire debris flows, and environmental conditions. (2) The department shall utilize all relevant information produced pursuant to paragraph (1) to operate reservoirs in a manner that improves flood protection in the state and to reoperate flood control and water storage facilities to capture water generated by atmospheric rivers and other storms. The goals of integrating forecast-informed reservoir operations into department operations shall be to increase water supply, hydropower availability, and water supply reliability. The department may use research generated by this program to refine climate projections of extreme weather and water events and changes in Sierra snow. (3) Information produced pursuant to paragraph (1) shall be available to relevant federal, state, and local agencies. (Repealed and added by Stats. 2023, Ch. 134, Sec. 4. (AB 30) Effective January 1, 2024.)

Last verified: January 23, 2026

Key Terms

AR/FIRO Programatmospheric riversforecast-informed reservoir operationsDepartment of Water Resources

Related Statutes

  • § 233 Water Project Wildlife Requirements
  • § 342 Debris Commission Work Oversight
  • § 345 Recreation Land Acquisition Rules
  • § 10608.14 Commercial Turf Irrigation Ban
  • § 205 State Reclamation Cooperation

References

  • Official text at leginfo.legislature.ca.gov
  • California Legislature. Water Code. Section 347.
View Official Source