Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap

  
 

Web Portal Changes: In Spring 2024, the Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS) at a repurposed https://water.noaa.gov. A preview of NWPS is available here, where you can see your station hydrograph by replacing SSSSS with the station 5-character id: https://preview.water.noaa.gov/gauges/SSSSS.

Flood Inundation Mapping: Experimental real-time flood Inundation mapping services for 10% of the United States are now available via the NWS Map Viewer. Additional products and geospatial services depicting River Forecast Center and National Water Model forecasts continue to be accessible as described in the StoryMap here.

Please visit https://www.weather.gov/owp/operations for more information.



Hydrograph River at a Glance Download
Sacramento River at Rio Vista Bridge Stage (ft)Highest Observation: 6.2 ft at 5:45AM Mar 16, 2024Observed: 5.8 ft at 6:00AM Mar 17, 2024Observed: 5.4 ft at 6:15AM Mar 18, 2024Forecast: 6.2 ft 2:30AM Mar 19, 2024Forecast: 5.3 ft 6:45AM Mar 19, 2024Highest Forecast: 6.7 ft 12:15PM Mar 19, 2024Forecast: 3.1 ft 8:15PM Mar 19, 2024Forecast: 6.4 ft 3:15AM Mar 20, 2024Forecast: 5.2 ft 7:45AM Mar 20, 2024Forecast: 6.6 ft 1:15PM Mar 20, 2024Forecast: 3.1 ft 9:00PM Mar 20, 2024RVBC1(plotting HGIRZ) Graph Created (8:37PM Mar 18, 2024)ObservedForecast (issued 6:47AM Mar 18)Latest observed value: 5.4 ft at 6:15 AM PDT 18-Mar-2024. Flood Stage is 11.9 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Crests prior to 10/1/2006 are in an old datum. Datum change to NAVD88 occurred 10/1/2006. See LINK for correction value.

NOTE: Forecasts for the Sacramento River at Rio Vista Bridge are issued routinely year-round.

Return to Area Map
Upstream Locations Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 21.4
Moderate Flood Stage: 20.4
Flood Stage: 11.9
Action Stage: 7.4
Low Stage (in feet): -9999

Historic Crests
(1) 11.50 ft on 02/20/1986
(2) 11.18 ft on 01/05/1997
(3) 10.61 ft on 12/03/1983
(4) 10.55 ft on 02/06/1998
(5) 10.46 ft on 01/29/1983
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 8.42 ft on 03/19/2023 (P)
(2) 8.81 ft on 01/05/2023 (P)
(3) 8.35 ft on 10/24/2021
(4) 7.92 ft on 06/25/2021
(5) 7.79 ft on 06/06/2020
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
21.4 Stages above 21.4 feet result in major flooding outside of the levees. Top of levee.
9.4 The lower end of Rio Vista begins to flood at high tides.
8.4 Nearby low lying delta tracts are threatened by flooding.
About This Location Collapse

Latitude: 38.159722° N, Longitude: 121.686389° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 11.9 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 0 ft 11.9 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

Additional Information Collapse
10/1/2006 Datum Changed to NAVD 88. New values are .6 ft below old values.
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Sacramento Weather Forecast Office

Sacramento, CA
(916) 979-3051
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:27 PM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities