National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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AMERICAN RIVER - SACRAMENTO AT H STREET (SAMC1)
Latitude: 38.57º NLongitude: 121.42º WElevation: 45 Feet
Location: Sacramento County in CaliforniaRiver Group: Lower Sacramento
Monitor Stage: 39.0 FeetFlood Stage: 42.0 FeetDanger Stage: 43.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the California Department of Water Resources.
View CA DWR 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
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ017)
Today: Patchy fog early in the morning. Rain. Highs 53 to 59. East winds up to 10 mph shifting to the south in the afternoon. Gusts up to 25 mph.

Tonight: Mostly cloudy. Rain likely in the evening, then a chance of rain after midnight. Lows around 49. Southeast winds 10 to 15 mph.

Friday: Mostly cloudy with a slight chance of rain. Highs 53 to 59. Southeast winds 10 to 15 mph. Gusts up to 25 mph in the afternoon.

Friday Night: A chance of rain in the evening, then rain after midnight. Breezy. Lows around 53. Southeast winds 10 to 15 mph increasing to 10 to 25 mph after midnight.

Saturday: Rain in the morning, then rain showers and a slight chance of thunderstorms in the afternoon. Highs 53 to 59. South winds 15 to 20 mph with gusts to around 30 mph.

Saturday Night: Rain showers and a slight chance of thunderstorms. Lows around 52.

Sunday: Rain showers and a slight chance of thunderstorms. Highs around 53.

Sunday Night: Rain showers and a slight chance of thunderstorms. Lows around 49.

Monday and Monday Night: Rain. Highs 49 to 54. Lows around 47.

Tuesday: Mostly cloudy with a chance of rain. Highs around 51.

Tuesday Night and Wednesday: Mostly cloudy with a slight chance of rain. Lows around 40. Highs around 50.
Flood Impacts
46.7 FeetStages 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.