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 30 2025 at 1:39 PM PST

Next Issuance:

Dec 31 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. A 20 percent chance of rain late in the night. Lows in the lower 40s. West winds up to 10 mph.

Wednesday: Rain likely in the morning, then rain in the afternoon. Highs around 50. Southeast winds up to 10 mph. Chance of rain near 100 percent.

Wednesday Night: Rain. Near steady temperature in the upper 40s. Southeast winds up to 10 mph. Chance of rain near 100 percent.

New Years Day: Rain in the morning, then chance of rain in the afternoon. Highs in the upper 50s. Southeast winds 5 to 10 mph. Chance of rain 90 percent.

Thursday Night: Mostly cloudy. Chance of rain in the evening. Near steady temperature in the mid 50s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.

Friday: Mostly cloudy. Chance of rain showers in the morning, then rain showers likely in the afternoon. Highs in the upper 50s. Chance of showers 70 percent.

Friday Night: Rain showers likely. Lows in the lower 50s. Chance of showers 70 percent.

Saturday: Rain showers likely in the morning, then rain likely in the afternoon. Highs in the upper 50s. Chance of precipitation 70 percent.

Saturday Night: Rain showers likely. Lows in the upper 40s. Chance of showers 70 percent.

Sunday and Sunday Night: Mostly cloudy with a 50 percent chance of rain. Highs in the mid 50s. Lows in the mid 40s.

Monday: Mostly cloudy with a 40 percent chance of rain. Highs in the lower 50s.

Monday Night: Cloudy with a 40 percent chance of rain. Lows in the mid 40s.

Tuesday: Cloudy with chance of rain in the morning, then partly sunny in the afternoon. Highs in the lower 50s. Chance of rain 30 percent.

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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