CNRFC - Hydrology - Observed River/Reservoir Conditions

CALLEGUAS CREEK - CSU CHANNEL ISLANDS (CLLC1)

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

Monitor Stage: 7.1 Feet

Flood Stage: 7.9 Feet

Observed Data Credit
	Raw streamflow data is provided by the Ventura County Watershed Protection District. View VCWPD 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

Official 7 Day National Weather Service Forecast (CAZ355)

Today: Rain likely in the morning, then rain in the afternoon. Highs in the mid 60s to around 70. Northeast winds 20 to 30 mph.

Tonight: Rain in the evening, then showers with a slight chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the lower 50s. Northeast winds 20 to 30 mph.

New Years Day: Showers with a chance of thunderstorms in the morning, then rain likely in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Highs in the lower 60s. Southeast winds around 15 mph in the morning.

Thursday Night: Mostly cloudy with a 30 percent chance of rain. Lows around 50.

Friday: Mostly cloudy. A 30 percent chance of rain in the afternoon. Highs around 60. Southeast winds around 15 mph in the afternoon.

Friday Night: Cloudy with a 50 percent chance of rain. Lows in the lower 50s.

Saturday: Rain. Highs around 60.

Saturday Night: Rain likely. Lows around 50. Chance of precipitation 60 percent.

Sunday: A chance of rain in the morning, then rain likely in the afternoon. Highs around 60. Chance of precipitation 60 percent.

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

Monday: Mostly cloudy with a 50 percent chance of rain. Highs around 60.

Monday Night: Mostly cloudy with a 50 percent chance of rain. Lows in the upper 40s.

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

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.

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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