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:

Sep 24 2022 at 8:11 AM PDT

Next Issuance:

Sep 25 2022 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: Sunny. Highs 88 to 94. Northwest winds up to 10 mph.

Tonight: Clear. Lows 58 to 68. Northwest winds up to 10 mph.

Sunday: Sunny. Highs 90 to 96. West winds up to 10 mph.

Sunday Night: Clear. Lows 57 to 66. West winds up to 10 mph shifting to the south after midnight.

Monday: Sunny. Highs 89 to 95. Southwest winds up to 10 mph.

Monday Night: Clear. Lows 55 to 65.

Tuesday: Sunny. Highs 86 to 92.

Tuesday Night: Clear. Lows 55 to 63.

Wednesday through Friday: Mostly clear. Highs 84 to 91. Lows 55 to 65.

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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