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:

Oct 25 2021 at 2:15 PM PDT

Next Issuance:

Oct 26 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: Mostly clear. A slight chance of rain showers in the evening. Lows 44 to 50. South winds around 10 mph.

Tuesday: Mostly cloudy. A slight chance of rain showers in the afternoon. Highs around 59. South winds 10 to 15 mph. Gusts up to 25 mph in the afternoon.

Tuesday Night: Mostly cloudy. A slight chance of rain showers in the evening. Lows 47 to 53. South winds up to 10 mph in the evening becoming light.

Wednesday: Partly cloudy in the morning then clearing. Highs around 68. Northwest winds up to 15 mph.

Wednesday Night: Clear. Lows 46 to 55. North winds up to 10 mph.

Thursday: Mostly sunny. Highs around 70.

Thursday Night: Clear. Lows 48 to 55.

Friday and Friday Night: Partly cloudy. Highs around 71. Lows 48 to 55.

Saturday: Mostly cloudy. Highs 65 to 70.

Saturday Night through Sunday Night: Partly cloudy. Lows 46 to 54. Highs 62 to 70.

Monday: Mostly cloudy. Highs around 66.

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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