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:

Oct 01 2023 at 8:48 AM PDT

Next Issuance:

Oct 02 2023 at 9:00 AM PDT

Monitor Stage: 32.0 Feet

Flood Stage: 39.5 Feet

Danger Stage: 40.5 Feet

Plot Type:

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

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)

Today: Patchy fog early in the morning. Mostly sunny. Highs 71 to 77. Northwest winds 10 to 20 mph with gusts to around 25 mph.

Tonight: Clear. Lows 48 to 56. Northwest winds up to 10 mph shifting to the southwest around 10 mph after midnight.

Monday: Sunny. Highs 75 to 81. North winds up to 15 mph.

Monday Night: Mostly clear. Lows 50 to 59. Northwest winds up to 10 mph.

Tuesday: Sunny. Highs 80 to 86. North winds up to 10 mph. Gusts up to 20 mph in the afternoon.

Tuesday Night: Clear. Lows 56 to 66.

Wednesday: Sunny. Highs 83 to 89.

Wednesday Night through Saturday: Clear. Lows 55 to 65. Highs 83 to 92.

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.