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

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YUBA RIVER - MARYSVILLE (MRYC1)
Latitude: 39.18º NLongitude: 121.52º WElevation: 88 Feet
Location: Yuba County in CaliforniaRiver Group: Lower Sacramento
Monitor Stage: 74.0 FeetFlood Stage: 87.0 FeetDanger Stage: 88.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View USGS 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* 22,900 73.10 Feb 05, 2025
2024* 9,730 67.02 Feb 20, 2024
2023* 34,400 76.25 Jan 01, 2023
2022* 15,100 70.11 Oct 25, 2021
2021* 1,390 62.32 Jan 28, 2021
 Historical High Stage/Flow Events (Period of Record - January 22, 1943 to Present) - Ranked by Flow
1965* 180,000 90.15 Dec 22, 1964
1997* 161,000 91.64 Jan 2, 1997
1963* 146,000 88.90 Feb 1, 1963
1956* 136,000 82.50 Dec 23, 1955
2006* 114,000 86.60 Dec 31, 2005
1986* 111,000 85.92 Feb 19, 1985
 * Discharge affected to unknown degree by regulation or diversion
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ016)
Tonight: Mostly clear. Lows 39 to 45. Light winds.

Tuesday: Widespread fog and locally dense in the morning. Mostly sunny. Highs around 66. Northwest winds up to 10 mph.

Tuesday Night: Clear. Lows 39 to 45. Light winds.

Wednesday: Mostly sunny. Highs 63 to 69. North winds up to 10 mph.

Wednesday Night: Clear. Lows 40 to 45. Light winds.

Thursday: Mostly sunny. Highs around 66.

Thursday Night: Mostly cloudy. Lows around 46.

Friday: Mostly cloudy. Highs around 64.

Friday Night and Saturday: Partly cloudy. Lows around 46. Highs around 63.

Saturday Night: Mostly cloudy with a slight chance of rain. Lows around 47.

Sunday and Sunday Night: Mostly cloudy with a chance of rain. Highs around 61. Lows around 46.

Monday: Mostly cloudy with a chance of rain. Highs around 56.
Flood Impacts
93.0 FeetTop of levee. Stages above this level result in flooding outside the levee. (datum = used)
87.0 FeetFlood stage.
80.0 FeetSimpson Lane becomes impassible. Dantoni Road floods. More orchards flood.
79.0 FeetSimpson Lane floods. Access into and out of Marysville via Simpson Lane bridge is cut off. Orchards within the levee system are flooded.
74.0 FeetMonitor stage.
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.