CNRFC - Hydrology - River Guidance - Graphical RVF

Start of River Group

Location:

SACRAMENTO RIVER - FREMONT WEIR (FMWC1)

Latitude: 38.77º N	Longitude: 121.67º W	Elevation: 40 Feet
Location: Sutter & Yolo Counties in California		Bulletin Group: Lower Sacramento		River Group: Lower Sacramento

Issuance Time:

Jan 24 2025 at 1:10 PM PST

Next Issuance:

Jan 25 2025 at 9:00 AM PST

Action/Monitor: 32.0 Feet

Minor Flood: 39.5 Feet

Moderate Flood: 43.0 Feet

Major Flood: 44.0 Feet

Plot Type:

Please Note: 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.

Fremont Weir Location - Stage/Flow into Yolo Bypass (Estimated)

Please Note: Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above.

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
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2023*	122,700	34.74	Jan 15, 2023
2022*	35,400	26.35	Oct 27, 2021
2021*	16,600	17.75	Jan 31, 2021
2020*	24,300	21.95	Jan 28, 2020
2019*	128,200	34.90	Mar 3, 2019
Historical High Stage/Flow Events (Period of Record - Jan 1932 to Present) - Ranked by Flow
1997*	~390,000***	42.47**	Jan 02, 1997
1986*	~355,000***	41.70	Feb 20, 1986
2006*	273,670	39.99	Jan 03, 2006
* Discharge affected by regulation or diversion
** Peak stage of record (Weir overflow depth of 8.97 feet)
*** Flow estimated
**** Datum changed from NGVD29 to NAVD88 on 10/01/2016. The difference is -1.45 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
44.0 Feet	Stages above 44.0 feet result in flooding outside the levees. Top of levee.
37.3 Feet	At 5.3 feet of overflow Egbert Tract floods.
33.1 Feet	At one foot of overflow, the river road to Woodland is closed due to flooding.
32.0 Feet	Fremont Weir crest elevation. Overflow begins into the Yolo Bypass flooding agricultural lands.

Official 7 Day National Weather Service Forecast (CAZ017)

Today: Mostly sunny until late afternoon, then partly cloudy with a slight chance of rain showers late in the afternoon. Highs 52 to 58. North winds 10 to 15 mph with gusts to around 45 mph.

Tonight: Mostly cloudy. A chance of rain showers in the evening, then a slight chance of rain showers after midnight. Lows around 38. Northeast winds 10 to 15 mph with gusts to around 35 mph.

Sunday: Mostly cloudy with a slight chance of rain showers in the morning, then mostly sunny in the afternoon. Highs 53 to 59. North winds 10 to 15 mph with gusts to around 30 mph.

Sunday Night: Clear. Areas of frost after midnight. Lows 31 to 40. North winds around 10 mph. Gusts up to 25 mph increasing to 35 mph after midnight.

Monday: Areas of frost in the morning. Sunny. Highs 55 to 61. North winds up to 10 mph with gusts to around 20 mph.

Monday Night: Clear. Lows 30 to 36.

Tuesday: Sunny. Widespread frost. Highs around 57.

Tuesday Night and Wednesday: Clear. Areas of frost. Lows 31 to 37. Highs around 57.

Wednesday Night: Clear. Lows 33 to 38.

Thursday: Partly cloudy. Patchy frost. Highs around 58.

Thursday Night: Mostly cloudy with a slight chance of rain. Lows around 42.

Friday: Mostly cloudy with a chance of rain. Highs around 57.

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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