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 County in California		River Group: Lower Sacramento

Monitor Stage: 32.0 Feet

Flood Stage: 39.5 Feet

Danger Stage: 40.5 Feet

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
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

Official 7 Day National Weather Service Forecast (CAZ017)

Today: Sunny. Highs 77 to 83. Light winds.

Tonight: Clear. Lows 52 to 58. Light winds.

Tuesday: Partly cloudy in the morning then clearing. Highs 79 to 85. Light winds.

Tuesday Night: Partly cloudy. Lows around 56. Light winds.

Wednesday: Mostly sunny. Highs 68 to 75. South winds up to 15 mph. Gusts up to 25 mph in the afternoon.

Wednesday Night: Mostly cloudy with a slight chance of rain showers. Lows around 50.

Thursday: Partly cloudy with a slight chance of rain showers. Highs 60 to 66.

Thursday Night: Partly cloudy with a slight chance of rain showers. Lows around 44.

Friday and Friday Night: Mostly clear. Highs 62 to 67. Lows around 43.

Saturday: Partly cloudy. Highs 61 to 66.

Saturday Night: Mostly cloudy with a chance of rain showers. Lows around 49.

Sunday: Rain showers likely. Highs 56 to 63.

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.

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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