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 CaliforniaRiver Group: Lower Sacramento
Issuance Time: May 15 2021 at 8:40 AM PDTNext Issuance: May 16 2021 at 9:00 AM PDT
Monitor Stage: 32.0 FeetFlood Stage: 39.5 FeetDanger Stage: 40.5 Feet


Fremont Weir Location - Stage/Flow into Yolo Bypass (Estimated)
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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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)
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
Official 7 Day National Weather Service Forecast   (CAZ017)
Tonight: Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 50 to 56. South winds up to 10 mph.

Sunday: Partly cloudy in the morning then clearing. Highs 75 to 83. South winds 10 to 15 mph.

Sunday Night: Mostly clear. Lows 48 to 54. South winds 10 to 15 mph with gusts to around 25 mph.

Monday: Sunny. Highs 77 to 85. South winds 10 to 15 mph.

Monday Night: Clear. Lows 47 to 55. South winds 10 to 15 mph.

Tuesday: Sunny. Highs 82 to 88.

Tuesday Night: Clear. Lows 48 to 54.

Wednesday through Thursday Night: Mostly clear. Highs 71 to 80. Lows 44 to 54.

Friday and Friday Night: Clear. Highs 74 to 80. Lows 44 to 54.

Saturday: Sunny. Highs 79 to 85.
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.
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.