CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

YUBA RIVER - MARYSVILLE (MRYC1)

Latitude: 39.18º N	Longitude: 121.52º W	Elevation: 88 Feet
Location: Yuba County in California		Bulletin Group: Lower Sacramento		River Group: Feather Yuba

Issuance Time:

Jan 06 2026 at 1:41 PM PST

Next Issuance:

Jan 07 2026 at 9:00 AM PST

Action/Monitor: 74.0 Feet

Minor Flood: 87.0 Feet

Moderate Flood: 90.0 Feet

Major Flood: 91.0 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 US Geological Survey (USGS). View US Geological Survey (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
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
93.0 Feet	Top of levee. Stages above this level result in flooding outside the levee. (datum = used)
87.0 Feet	Flood stage.
80.0 Feet	Simpson Lane becomes impassible. Dantoni Road floods. More orchards flood.
79.0 Feet	Simpson Lane floods. Access into and out of Marysville via Simpson Lane bridge is cut off. Orchards within the levee system are flooded.
74.0 Feet	Monitor stage.

Official 7 Day National Weather Service Forecast (CAZ016)

Tonight: Mostly cloudy. Patchy fog through the night. Lows 42 to 47. Light winds.

Wednesday: Mostly cloudy. Patchy fog through the day. Highs around 53. Light winds becoming south up to 10 mph in the afternoon.

Wednesday Night: Mostly cloudy with a chance of rain in the evening, then partly cloudy with a slight chance of rain after midnight. Patchy fog through the night. Lows around 37. South winds up to 10 mph in the evening becoming light.

Thursday: Areas of frost and patchy fog in the morning. Mostly sunny. Highs around 48. Northwest winds up to 15 mph.

Thursday Night: Mostly clear. Lows 32 to 38. North winds 10 to 15 mph.

Friday: Mostly sunny. Areas of frost. Highs around 50.

Friday Night: Partly cloudy. Patchy fog and frost. Lows around 35.

Saturday: Mostly cloudy. Areas of frost and patchy fog. Highs around 50.

Saturday Night and Sunday: Mostly cloudy. Patchy fog. Lows around 38. Highs 50 to 56.

Sunday Night: Mostly clear. Patchy fog. Lows around 39.

Monday: Partly cloudy. Patchy fog. Highs 52 to 58.

Monday Night and Tuesday: Mostly clear. Patchy fog. Lows 38 to 44. Highs 54 to 62.

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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Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.