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

Action/Monitor: 32.0 Feet

Minor Flood: 39.5 Feet

Moderate Flood: 43.0 Feet

Major Flood: 44.0 Feet

Plot Type:

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
2024*	113,000	34.44	Feb 23, 2024
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
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)

Tonight: Mostly clear. Lows around 48. Southwest winds up to 15 mph. Gusts up to 25 mph in the evening.

Tuesday: Partly cloudy in the morning then clearing. Highs 68 to 75. North winds up to 10 mph.

Tuesday Night: Clear. Lows 46 to 52. Northwest winds up to 10 mph in the evening becoming light.

Wednesday: Sunny, warmer. Highs 76 to 82. Northwest winds up to 10 mph.

Wednesday Night: Clear. Lows 49 to 55. West winds up to 10 mph.

Thursday: Sunny. Highs 80 to 87.

Thursday Night: Mostly cloudy. Lows 53 to 59.

Friday: Partly cloudy. Highs 81 to 88.

Friday Night through Sunday: Mostly clear. Lows 50 to 56. Highs 77 to 87.

Sunday Night and Monday: Clear. Lows 52 to 60. Highs 79 to 89.

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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