Sacramento River
Page last updated: March 12, 2023
The Sacramento River Basin is the largest watershed in the state of California, covering 27,000 square miles and carrying approximately 30% of the state’s total surface water. Tributaries include: (Source: NOAA)
The Feather River is the largest tributary to the Sacramento River. It originates in the Sierra Nevada mountain range and flows 211 miles from its headwaters to Verona, where it meets the Sacramento River.
The American River empties into the Sacramento River at the City of Sacramento.
Clear Creek is the first major tributary to the Sacramento River below Shasta Dam. Whiskeytown Dam, constructed in 1963, stores and regulates water from the Clear Creek watershed and diversions from the Trinity River.
Cottonwood Creek is the third largest tributary to the Sacramento River and the largest undammed tributary in the upper Sacramento River Basin.
Mill Creek is an eastside tributary to the Sacramento River that originates near a thermal spring area in Lassen Volcanic National Park (LVNP) at an elevation of approximately 8,200 feet.
Deer Creek is an eastside tributary to the Sacramento River. It flows for approximately 60 miles from near the summit of Butt Mountain through meadows and dense forests before emerging on the Sacramento Valley floor.
Butte Creek originates on the western slope of the Sierra Nevada Mountains and enters the Sacramento Valley near the town of Chico. From there, it meanders southwesterly to the initial point of entry into the Sacramento River at Butte Slough. Butte Creek also enters the Sacramento River through the Sutter Bypass and Sacramento Slough.
USGS Water Alert allows you to get notifications for changes in water conditions based on thresholds you choose. Observation stations are listed from the headwaters to the mouth of the river. Map of USGS observation stations available via the National Water Dashboard. To learn more about the program, visit USGS’s WaterAlerts page.
Upper Sacramento River Monitoring Points
@ Delta, CA in Tehama County
Lat/Long: 40.93959397, -122.4172351, Site Identification Number: 11342000
USGS WaterAlert – Create Alerts for This Location
@ Keswick, CA in Shasta County
Lat/Long: 40.6009835, -122.4444553, Site Identification Number: 11370500
USGS WaterAlert – Create Alerts for This Location
Above Bend Bridge near Red Bluff in Tehama County
Lat/Long: 40.28848836, -122.1866645, Site Identification Number: 11377100
California Nevada River Forecast Center – main page and ensemble forecasts
USGS WaterAlert – Create Alerts for This Location
National Weather Service Advanced Hydrologic Prediction Service
@ Red Bluff in Tehama County
Lat/Long: 40.154444, -122.201944
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
@ Tehama Bridge in Tehama County
Lat/Long: 40.028611, -122.117778
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
@ Vina Woodson Bridge in Tehama County
Lat/Long: 39.908889, -122.0925
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
@ Hamilton City in Glenn County
Lat/Long: 39.750833, -121.997778
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
@ Ord Ferry in Glenn County
Lat/Long: 39.628056, -121.993056
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
@ Butte City in Glenn County
Lat/Long: 39.457663, -121.994142
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
@ Moulton Weir in Colusa County
Lat/Long: 39.338333, -122.022778
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
@ Colusa Weir in Colusa County
Lat/Long: 39.236944, -121.994722
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
@ Colusa Bridge in Colusa County
Lat/Long: 39.214057, -122.000251
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
@ Tisdale Weir in Sutter County
Lat/Long: 39.026389, -121.821944
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
Below Wilkins Slough near Grimes, CA in Colusa County
Lat/Long: 39.00989476, -121.82469, Site Identification Number: 11390500
USGS WaterAlert – Create Alerts for This Location
National Weather Service Advanced Hydrologic Prediction Service
Upper Sacramento River Current Levels
Source: California Data Exchange Center – Stage Maps, additional maps are available for 1 hour ago and 2 hours ago.
Lower Sacramento River Monitoring Points
@ Fremont Weir in Sutter & Yolo Counties
Lat/Long: 38.759444, -121.666389
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
@ Verona in Sutter County
Lat/Long: 38.77434584, -121.5982928, Site Identification Number: 11425500
California Nevada River Forecast Center – main page and ensemble forecasts
USGS WaterAlert – Create Alerts for This Location
National Weather Service Advanced Hydrologic Prediction Service
@ Sacramento at I Street in Sacramento County
Lat/Long: 38.588673, -121.504967
California Nevada River Forecast Center – main page and ensemble forecasts
National Weather Service Advanced Hydrologic Prediction Service
@ Freeport in Sacramento County
Lat/Long: 38.45601954, -121.5013437, Site Identification Number: 11447650
USGS WaterAlert – Create Alerts for This Location
Above Delta Cross Channel in Sacramento County
Lat/Long: 38.25769218, -121.5182865, Site Identification Number: 11447890
USGS WaterAlert – Create Alerts for This Location
Below Georgiana Slough in Sacramento County
Lat/Long: 38.23880385, -121.5227309, Site Identification Number: 11447905
USGS WaterAlert – Create Alerts for This Location
@ Rio Vista in Solano County
Lat/Long: 38.14904444, -121.6889444, Site Identification Number: 11455420
California Nevada River Forecast Center – main page
USGS WaterAlert – Create Alerts for This Location
National Weather Service Advanced Hydrologic Prediction Service
Caltrans Webcam via Windy
Lower Sacramento River Current Levels
Source: California Data Exchange Center – Stage Maps, additional maps are available for 1 hour ago and 2 hours ago.
Weather
Day 1 Rainfall
Day 2 Rainfall
Day 3 Rainfall
Additional images are available for days 3-6 and for 6 hour intervals for days 1-3 at the California Nevada River Forecast Center page.
National Weather Service Watches, Warnings, & Advisories by County
Warning – A warning is issued when a hazardous weather or hydrologic event is occurring, is imminent, or has a very high probability of occurring. A warning is used for conditions posing a threat to life or property.
Advisory – Highlights special weather conditions that are less serious than a warning. They are for events that may cause significant inconvenience, and if caution is not exercised, it could lead to situations that may threaten life and/or property.
Watch – A watch is used when the risk of a hazardous weather or hydrologic event has increased significantly, but its occurrence, location, and/or timing is still uncertain. It is intended to provide enough lead time so that those who need to set their plans in motion can do so.
These definitions are from the National Weather Service Glossary.
Current watches, warnings, and advisories for Sacramento County (CAC067) CA
- An error has occurred, which probably means the feed is down. Try again later.
Current watches, warnings, and advisories for Solano County (CAC095) CA
- An error has occurred, which probably means the feed is down. Try again later.
Current watches, warnings, and advisories for Yolo County (CAC113) CA
- An error has occurred, which probably means the feed is down. Try again later.
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