National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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SACRAMENTO RIVER - FREMONT WEIR (FMWC1)
Latitude: 38.77º NLongitude: 121.67º WElevation: 40 Feet
Location: Sutter & Yolo Counties in CaliforniaBulletin Group: Lower SacramentoRiver Group: Lower Sacramento
Issuance Time: Dec 08 2023 at 8:07 AM PSTNext Issuance: Dec 08 2023 at 3:00 PM PST
Monitor Stage: 32.0 FeetFlood Stage: 39.5 FeetDanger Stage: 40.5 Feet

Please Note: Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.
Fremont Weir Location - Stage/Flow into Yolo Bypass (Estimated)
Please Note: Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above.
Observed Data Credit
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Raw streamflow data is provided by the California Department of Water Resources.
View CA DWR Data for this station location.

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
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
ESRI™ Locator Map
Impacts - E19 Information
32.0 FeetFremont Weir crest elevation. Overflow begins into the Yolo Bypass flooding agricultural lands.
33.1 FeetAt one foot overflow, River Road to Woodland is closed due to flooding.
37.3 FeetAt 5.3 feet overflow, Egbert Tract floods.
44.0 FeetStages above 44.0 feet result in flooding outside the levees. Top of levee.
Official 7 Day National Weather Service Forecast   (CAZ017)
Today: Partly cloudy in the morning then clearing. Patchy fog early in the morning. Highs 53 to 59. Northwest winds 10 to 20 mph with gusts to around 30 mph.

Tonight: Clear. Areas of frost after midnight. Lows 30 to 40. North winds up to 15 mph and except north up to 20 mph with gusts to around 35 mph west of the sacrAMento river. Gusts up to 25 mph in the evening.

Saturday: Areas of frost in the morning. Mostly sunny. Highs around 56. Northeast winds up to 10 mph. Gusts up to 25 mph in the morning.

Saturday Night: Mostly clear in the evening then becoming mostly cloudy. Areas of frost after midnight. Lows 32 to 41. Light winds.

Sunday: Areas of frost in the morning. Mostly cloudy. Highs around 58. Light winds.

Sunday Night: Partly cloudy. Lows 33 to 42.

Monday: Mostly sunny. Patchy frost. Highs around 61.

Monday Night through Tuesday Night: Clear. Lows 34 to 44. Highs 59 to 65.

Wednesday through Thursday: Mostly clear. Highs around 60. Lows 34 to 44.
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.