CNRFC - Hydrology - Observed River/Reservoir Conditions

Start of River Group

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

Monitor Stage: 32.0 Feet

Flood Stage: 39.5 Feet

Danger Stage: 40.5 Feet

Plot Type:

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

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
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
2018*	76,000	33.29	Apr 9, 2018
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

Impacts - E19 Information
32.0 Feet	Fremont Weir crest elevation. Overflow begins into the Yolo Bypass flooding agricultural lands.
33.1 Feet	At one foot overflow, River Road to Woodland is closed due to flooding.
37.3 Feet	At 5.3 feet overflow, Egbert Tract floods.
44.0 Feet	Stages above 44.0 feet result in flooding outside the levees. Top of levee.

Official 7 Day National Weather Service Forecast (CAZ017)

Tonight: Mostly cloudy in the evening then clearing. Areas of frost and patchy fog late in the night. Lows 32 to 42. Light winds.

Monday: Areas of frost and patchy fog in the morning. Mostly sunny. Highs 57 to 63. Light winds.

Monday Night: Clear. Lows 33 to 43. Light winds.

Tuesday: Patchy frost in the morning. Mostly sunny. Highs 58 to 64. North winds up to 10 mph with gusts to around 20 mph.

Tuesday Night: Clear. Lows 32 to 42. North winds up to 10 mph.

Wednesday: Mostly sunny. Patchy frost. Highs around 60.

Wednesday Night: Partly cloudy. Lows 34 to 43.

Thursday through Friday Night: Mostly cloudy. Highs 57 to 64. Lows 34 to 44.

Saturday: Mostly sunny. Highs 59 to 65.

Saturday Night: Partly cloudy with a slight chance of rain showers. Lows 35 to 45.

Sunday: Mostly cloudy with a chance of rain showers. Highs around 60.

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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