CNRFC - Hydrology - River Guidance - Graphical RVF

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		River Group: Lower Sacramento

Issuance Time:

Mar 20 2023 at 2:42 PM PDT

Next Issuance:

Mar 21 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
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
2017*	258,000	37.79	Feb 11, 2017
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: Rain showers. Highs 49 to 57. Northeast winds around 10 mph with gusts to around 20 mph shifting to the east 15 to 20 mph with gusts to around 30 mph in the afternoon.

Tonight: Mostly cloudy. Rain showers likely and a slight chance of thunderstorms in the evening, then a chance of rain showers after midnight. Lows around 45. Southeast winds 10 to 20 mph with gusts to around 35 mph.

Wednesday: Mostly cloudy with a chance of rain showers. Highs 54 to 59. East winds 10 to 15 mph with gusts to around 25 mph shifting to the south in the afternoon.

Wednesday Night: Mostly cloudy. A slight chance of rain showers in the evening. Lows around 43. South winds up to 10 mph.

Thursday: Mostly cloudy. A slight chance of rain showers in the afternoon. Highs 56 to 62. Southwest winds up to 15 mph.

Thursday Night: Partly cloudy with a chance of rain showers. Lows around 38.

Friday: Partly cloudy. Highs 54 to 60.

Friday Night: Mostly clear. Lows around 35.

Saturday and Saturday Night: Clear. Highs 54 to 59. Lows around 35.

Sunday: Mostly sunny. Highs 55 to 60.

Sunday Night: Partly cloudy with a slight chance of rain showers. Lows around 39.

Monday: Mostly cloudy with a chance of rain showers. Highs 50 to 56.

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.

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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