- Historical Data
- Daily Snow WEQ Summary
- Statewide Snow WEQ Summary
- Latest Monthly Snow Course Report
- California Cooperative Snow Surveys - 2011 Meeting
- California Cooperative Snow Surveys - 2010 Meeting
- California Cooperative Snow Surveys - 2009 Meeting
- California Cooperative Snow Surveys - 2008 Meeting
- Archived California Cooperative Snow Surveys - 2007 Meeting
- Archived California Cooperative Snow Surveys - 2005-2006 Meetings
River Stage and Flow Information
Current River Levels
- Real-Time River Stage Maps provided by the NWS California-Nevada River Forecast Center
- River Stage Guidance Plots issued jointly with the NWS California-Nevada Forecast Center
- River Stage Summary provided by the NWS California-Nevada River Forecast Center
- Latest Real-time Stage Data or narrow by River Basin
Information About Rivers
- Selected-Level Stage Data (To find data above a selected stage)
- River stage definitions
- Terminology change from Warning Stage to Monitor Stage
- USED and NGVD Datums
- Detailed information for river stage stations (includes monitor stage, flood stage, datum, etc.)
- Stations above defined river stage
- NAVD88 Notice of Datum Change
River Schematics and Maps
- Sacramento and San Joaquin River Systems Schematic (92 KB)
- Flood Control Projects and Agencies Map for the Sacramento and San Joaquin River Basins (1.4 MB)
- Sacramento and San Joaquin Rivers Flood Control System Project Levees and Channels Map (806 KB)
- Sacramento River Flood Control System Map with General Features (340 KB)
- Sacramento Valley Flood Control System Map with Estimated Channel Capacities and Levee Maintaining Agencies (vertical layout) (1.4 MB)
- Sacramento Valley Flood Control System Map with Estimated Channel Capacities and Levee Maintaining Agencies (horizontal layout) (1.2 MB)
- Delta and San Joaquin Valley Flood Control System Map with Levee Maintaining Agencies (630 KB)
Daily Hydrologic Summaries
- Central Valley Rivers as of 6AM
- North Coastal Rivers as of 6AM
River Flows
- Current Rating Table Information (What is a rating?)
- Rating Tables and Curves as explained by the NWS Hydrologic Services Division
- 14 Day Mean Daily Flows for San Joaquin River and major tributaries
- Latest Real-time Flow Data or narrow by River Basin
Full Natural Flows
- Seasonal Flow Summary: Current | Previous
- Monthly Flow Summary: Current | Previous
- Daily Flow Summary: Current | Previous
- Daily Total Unimpaired Runoff (in Thousand Acre-Feet)
- 30-day plots of daily flows
- Information about full natural flows provided by the California Cooperative Snow Surveys