CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

SAN ANTONIO CREEK - SUNOL (ACSC1)

Latitude: 37.58º N	Longitude: 121.86º W	Elevation: 272 Feet
Location: Alameda County in California		Bulletin Group: Central Coast		River Group: South Bay

Issuance Time:

Jan 08 2026 at 1:44 PM PST

Next Issuance:

Jan 09 2026 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 US Geological Survey (USGS). View US Geological Survey (USGS) Data for this station location.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ510)

Rest of Today: Sunny. Highs in the mid 50s. North winds 10 to 20 mph.

Tonight: Mostly clear in the evening then becoming partly cloudy. Lows in the upper 30s. Northwest winds 5 to 10 mph and Becoming northeast after midnight.

Friday: Sunny. Areas of frost in the morning. Highs in the lower 50s. Northeast winds 5 to 10 mph.

Friday Night: Mostly clear in the evening then becoming partly cloudy. Areas of frost after midnight. Lows in the mid 30s. Northeast winds around 5 mph.

Saturday: Mostly cloudy in the morning then becoming partly cloudy. Areas of frost in the morning. Highs in the lower 50s. Northeast winds 5 to 10 mph.

Saturday Night: Mostly cloudy. Lows in the mid 30s.

Sunday: Mostly cloudy. Highs in the 50s.

Sunday Night through Monday Night: Mostly clear. Lows in the upper 30s. Highs in the 50s.

Tuesday and Tuesday Night: Partly cloudy. Highs in the mid 50s to lower 60s. Lows in the lower 40s.

Wednesday: Partly cloudy in the morning then becoming sunny. Highs near 60.

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 San Francisco Bay Area-Monterey 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.

NWS RSS Feed

Verification - Historical Graphical RVF
Month:	Day:	Year:	Cycle:
To view other verification locations, use our Historical Graphical River Forecast Interface.