CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

CHOWCHILLA BYPASS - RIPPERDAN (CHBC1)

Latitude: 36.77º N	Longitude: 120.29º W	Elevation: 170 Feet
Location: Madera County in California		Bulletin Group: San Joaquin		River Group: San Joaquin

Issuance Time:

Dec 26 2025 at 2:51 PM PST

Next Issuance:

Dec 27 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 San Luis and Delta-Mendota Water Authority. View San Luis and Delta-Mendota Water Authority Data for this station location.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ302)

Tonight: Mostly cloudy with a 50 percent chance of rain. Lows in the mid 40s. South winds up to 5 mph.

Saturday: Mostly sunny. Highs in the lower 50s. Northwest winds up to 10 mph.

Saturday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows around 40. Northwest winds up to 5 mph.

Sunday: Mostly cloudy in the morning then clearing. Highs in the upper 40s. Northwest winds up to 5 mph.

Sunday Night: Partly cloudy. Lows in the mid 30s. Northwest winds up to 5 mph.

Monday through Tuesday Night: Partly cloudy. Highs in the upper 40s. Lows in the upper 30s.

Wednesday: Mostly cloudy. Highs around 50.

Wednesday Night: Cloudy with a 40 percent chance of rain. Near steady temperature in the mid 40s.

New Years Day and Thursday Night: Cloudy with a 50 percent chance of rain. Highs around 50. Lows in the mid 40s.

Friday: Partly sunny with a 50 percent chance of rain. Highs in the lower 50s.

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 Joaquin Valley-Hanford 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.