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: Jan 27 2023 at 1:27 PM PSTNext Issuance: Jan 28 2023 at 9:00 AM PST
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
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
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ017)
Today: Patchy fog in the morning. Mostly sunny. Highs around 60. Light winds.

Tonight: Mostly clear. Lows 33 to 41. Light winds becoming north up to 10 mph with gusts to around 25 mph after midnight.

Saturday: Partly cloudy in the morning then clearing. Patchy frost in the morning. Highs around 56. Northwest winds up to 10 mph with gusts to around 25 mph shifting to the south in the afternoon.

Saturday Night: Clear in the evening then becoming mostly cloudy. Lows around 38. South winds up to 10 mph.

Sunday: Mostly cloudy. A slight chance of rain showers in the morning. Highs 46 to 52. South winds around 10 mph shifting to the west with gusts to around 25 mph in the afternoon.

Sunday Night: Mostly clear. Lows around 32.

Monday: Sunny, breezy. Highs 48 to 54.

Monday Night: Clear. Lows 27 to 33.

Tuesday: Mostly sunny. Highs around 52.

Tuesday Night: Mostly clear. Widespread frost. Lows 27 to 33.

Wednesday: Partly cloudy. Widespread frost. Highs around 54.

Wednesday Night and Thursday: Mostly cloudy. Lows around 34. Highs 52 to 58.
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.