CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

SACRAMENTO RIVER DELTA - VENICE ISLAND (VNCC1)

Latitude: 38.05º N	Longitude: 121.50º W	Elevation: 0 Feet
Location: San Joaquin County in California		Bulletin Group: Lower Sacramento		River Group: Lower Sacramento

Issuance Time:

Dec 25 2025 at 2:03 PM PST

Next Issuance:

Dec 26 2025 at 9:00 AM PST

Action/Monitor: N/A

Minor Flood: N/A

Moderate Flood: N/A

Major Flood: N/A

Plot Type:

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
	Raw streamflow data is provided by the California Department of Water Resources. View California Department of Water Resources Data for this station location.

Delta Tide Forecast - Text Bulletin (RNORVFSAC)
Rio Vista, Antioch, Mallard Island, and Venice Island

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ018)

Today: Mostly cloudy. A chance of rain until late afternoon, then rain likely late in the afternoon. Breezy. Highs 52 to 57. South winds 10 to 25 mph with gusts to around 40 mph.

Tonight: Mostly cloudy with a chance of rain in the evening, then partly cloudy with a slight chance of rain after midnight. Lows around 44. South winds 10 to 15 mph with gusts to around 25 mph.

Saturday: Partly cloudy in the morning then becoming mostly cloudy. Highs around 51. West winds up to 10 mph shifting to the north around 10 mph in the afternoon.

Saturday Night: Mostly clear. Lows around 38. Northwest winds around 10 mph with gusts to around 20 mph.

Sunday: Mostly cloudy in the morning then clearing. Highs around 48. North winds around 10 mph with gusts to around 25 mph.

Sunday Night: Partly cloudy. Lows around 37.

Monday: Mostly cloudy. Highs around 50.

Monday Night: Partly cloudy. Lows around 36.

Tuesday: Mostly cloudy. Highs around 49.

Tuesday Night: Mostly clear. Lows around 38.

Wednesday and Wednesday Night: Mostly cloudy. Highs around 49. Lows around 39.

New Years Day: 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.

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Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.