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

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YOLO BYPASS - LISBON (LSBC1)
Latitude: 38.48º NLongitude: 121.59º WElevation: 20 Feet
Location: Yolo County in CaliforniaBulletin Group: Lower SacramentoRiver Group: Lower Sacramento
Issuance Time: Dec 27 2025 at 9:53 AM PSTNext Issuance: Dec 28 2025 at 9:00 AM PST
Action/Monitor: 13.0 FeetMinor Flood: 19.0 FeetModerate Flood: 26.0 FeetMajor Flood: 31.1 Feet

Please Note:
1) 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.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.
Observed Data Credit
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Raw streamflow data is provided by the California Department of Water Resources.
View California Department of Water Resources 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
Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months.
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2025 123,389 20.69 Feb 10, 2025
2024* 56,800 17.50 Feb 24, 2024
2023 76,100 18.46 Jan 16, 2023
2022 1,160 8.30 Dec 31, 2021
2021 659 7.22 Jan 28, 2021
 Historical High Stage/Flow Events (Period of Record - January 1914 to Present) - Ranked by Flow
1986 564,800 27.50 Feb 20, 1986
1997 507,400 27.18 Jan 3, 1997
1965 323,100 24.69 Dec 25, 1964
1970 273,500 23.90 Jan 25, 1970
1956 246,000 23.40 Dec 24, 1955
1963 204,800 22.64 Feb 02, 1963
 * Incomplete record for the year
 ** Datum changed from NGVD29 to NAVD88 on 10/01/2006. The difference is -1.06 ft and must be applied to all data before date to convert to NAVD88
Location Photographs
ESRI™ Locator Map
Flood Impacts
31.1 FeetStages above 31.1 feet result in flooding outside levees. Top of east yolo bypass containment levee.
26.2 FeetWater is up to the steps of Skyrakers Duck Club buildings.
25.0 FeetTop of the Mound Farms levee protecting the housing area.
22.5 FeetKerney Ranch house floods.
19.0 FeetMound Farms and Senator Outing Duck Club are flooded.
16.0 FeetGlide In Ranch is completely flooded.
15.0 FeetCounty Road 155 is flooded west of the Golden Sprig Duck Club.
14.0 FeetSkyrakers Duck Club ponds begin to flood.
13.0 FeetFlood waters extend approximately 1 mile west of the tow drain downstream of the Lisbon gage.
12.0 FeetCounty Road 107 is flooded.
11.0 FeetGlide In Ranch & Mound Farms begin to flood.
10.5 FeetLocal roads on the east side of the Yolo Bypass south of the I-80 causeway are flooded.
9.5 FeetYolo Bypass flooding extends 1/4 mile west. No structural damage is occurring.
Official 7 Day National Weather Service Forecast   (CAZ017)
Tonight: Mostly clear in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows around 38. Northwest winds up to 10 mph with gusts to around 20 mph.

Sunday: Mostly cloudy in the morning then becoming partly cloudy. Patchy fog through the day. Highs around 49. Light winds.

Sunday Night: Partly cloudy. Patchy fog after midnight. Lows 34 to 40. Light winds.

Monday: Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs 47 to 53. North winds up to 10 mph.

Monday Night: Partly cloudy. Patchy fog after midnight. Lows around 37. Light winds.

Tuesday: Mostly cloudy. Patchy fog. Highs around 51.

Tuesday Night: Mostly clear. Lows around 39.

Wednesday: Mostly cloudy. Highs around 51.

Wednesday Night: Mostly cloudy with a chance of rain. Lows around 43.

New Years Day and Thursday Night: Rain likely. Highs around 50. Lows around 44.

Friday and Friday Night: Mostly cloudy with a chance of rain. Highs around 51. Lows around 44.

Saturday: Mostly cloudy with a slight chance of rain. Highs around 50.
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.