CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

CALLEGUAS CREEK - CSU CHANNEL ISLANDS (CLLC1)

Latitude: 34.18º N	Longitude: 119.04º W	Elevation: 70 Feet
Location: Ventura County in California		Bulletin Group: Southern California		River Group: Southern California

Issuance Time:

Dec 28 2025 at 8:59 AM PST

Next Issuance:

Dec 29 2025 at 9:00 AM PST

Action/Monitor: 7.1 Feet

Minor Flood: 7.9 Feet

Moderate Flood: 9.0 Feet

Major Flood: 9.9 Feet

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 Ventura County Watershed Protection District. View Ventura County Watershed Protection District Data for this station location.

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	1,362*	3.23	Feb 13, 2025
2024	8,560	6.38	Feb 5, 2024
2023	7,050	5.91	Feb 25, 2023
2022	9,150	6.55	Dec 30, 2021
2021	2,390	3.93	Dec 28, 2020
Historical High Stage/Flow Events (Period of Record - Oct 1969 to Present - USGS Gage 11106550) - Ranked by Flow
1980	25,300	10.54	Feb 16, 1980
1998	21,600	9.38	Feb 06, 1998
2005	19,700	8.88	Jan 09, 2005
1978	18,700	8.38	Mar 04, 1978
1969	16,300	8.50	Feb 25, 1969
2011	13,400	7.64	Mar 20, 2011
* Estimated

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
9.9 Feet	Flooding of Lewis Road, california state university at channel islands Entrance Road bridge is flooded, flooding at point mugu naval air station, flooding of las Posas Road, Laguna Road, and highway 1
9.0 Feet	Flooding of Lewis Road, starts flooding bridge at california state university at channel islands entrance, flooding of casa pacifica property, flooding at point mugu naval air station's south entrance
7.9 Feet	Callegus creek can break out at the confluence with conejo creek. Point mugu naval air station needs to consider deploying flood protection measures.

Official 7 Day National Weather Service Forecast (CAZ355)

Today: Sunny. Highs in the upper 60s. Northeast winds 25 to 35 mph.

Tonight: Mostly clear in the evening then mostly cloudy. Lows around 50. Northeast winds 20 to 30 mph.

Tuesday: Mostly cloudy. Highs around 70. Northeast winds 20 to 30 mph.

Tuesday Night: Mostly cloudy. A 20 percent chance of rain after midnight. Lows in the mid 50s. Northeast winds 15 to 25 mph.

Wednesday: A chance of rain in the morning, then rain likely in the afternoon. Highs in the mid 60s. Northeast winds 15 to 25 mph in the afternoon. Chance of precipitation 70 percent.

Wednesday Night: Rain likely in the evening, then rain after midnight. Lows in the lower 50s.

New Years Day: Rain. Highs in the lower 60s.

Thursday Night: Rain likely. Lows in the lower 50s. Chance of precipitation 70 percent.

Friday: A chance of rain in the morning, then rain likely in the afternoon. Highs in the mid 60s. Chance of precipitation 60 percent.

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

Saturday: Cloudy with a 50 percent chance of rain. Highs in the lower 60s.

Saturday Night: Cloudy with a 50 percent chance of rain. Lows around 50.

Sunday: Mostly cloudy with a 40 percent chance of rain. Highs in the lower 60s.

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 Los Angeles-Oxnard 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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