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:

Jul 26 2021 at 7:53 AM PDT

Next Issuance:

Jul 27 2021 at 9:00 AM PDT

Monitor Stage: 32.0 Feet

Flood Stage: 39.5 Feet

Danger Stage: 40.5 Feet

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
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
2016*	65,654	36.06	Mar 15, 2016
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)

Tonight: Partly cloudy in the evening, then mostly cloudy with a slight chance of rain showers after midnight. Lows 60 to 69. South winds 10 to 15 mph.

Tuesday: Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then mostly sunny in the afternoon. Highs 89 to 97. Light winds becoming northwest around 10 mph in the afternoon.

Tuesday Night: Mostly clear. Lows 63 to 73. Northwest winds up to 10 mph.

Wednesday: Mostly sunny. Highs 97 to 103. West winds up to 10 mph.

Wednesday Night: Mostly clear. Lows 64 to 74. South winds up to 10 mph.

Thursday: Mostly sunny. Highs 99 to 105.

Thursday Night: Mostly clear. Lows 64 to 74.

Friday and Friday Night: Mostly clear. Highs 97 to 105. Lows 63 to 73.

Saturday and Saturday Night: Mostly clear. Highs 92 to 100. Lows 60 to 70.

Sunday through Monday: Clear. Highs 88 to 98. Lows 58 to 68.

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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