CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

AMERICAN RIVER - SACRAMENTO AT H STREET (SAMC1)

Latitude: 38.57º N	Longitude: 121.42º W	Elevation: 45 Feet
Location: Sacramento County in California		Bulletin Group: Lower Sacramento		River Group: Lower Sacramento

Issuance Time:

Jan 17 2026 at 7:54 AM PST

Next Issuance:

Jan 18 2026 at 9:00 AM PST

Action/Monitor: 39.0 Feet

Minor Flood: 42.0 Feet

Moderate Flood: 45.7 Feet

Major Flood: 46.7 Feet

Plot Type:

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.

Observed Data Credit
	Raw streamflow data is provided by the California Department of Water Resources. View California Department of Water Resources Data for this station location.

Historical Stage/Flow Data
Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months.
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2025*	--	25.61	Jul 20, 2020
2024*	--	24.20	Feb 23, 2024
2023*	--	31.13	Mar 15, 2023
2022*	--	17.92	Jan 8, 2022
2021*	--	17.08	Mar 13, 2021
Historical High Stage/Flow Events (Period of Record - Jul 1921 to Present) - Ranked by Stage
1951	106,000	45.70**	Nov 21, 1950
1986*	115,000	43.40***	Feb 19, 1986****
1928	--	43.40	Mar 26, 1928
1997*	130,000	42.70	Jan 03, 1997*****
1963*	--	41.30	Feb 02, 1963
1940	--	39.70	Mar 31, 1940
* Discharge affected by regulation or diversion Stage of record prior to Folsom Dam construction * Stage of record after Folsom Dam construction ** Maximum Folsom Dam release of 130,000 cfs * Maximum Folsom Dam release of 115,000 cfs **** Datum changed from NGVD29 to NAVD88 on 10/01/2016. The difference is -0.84 ft and must be applied to all data before date to convert to NAVD88

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
46.7 Feet	Stages above 46.7 feet result in flooding outside the levees. Top of levee.

Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Sacramento Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.

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