CNRFC - Hydrology - Observed River/Reservoir Conditions

SAN LUIS REY RIVER - OCEANSIDE (SLOC1)

Latitude: 33.22º N	Longitude: 117.36º W	Elevation: 20 Feet
Location: San Diego County in California		Bulletin Group: Southern California		River Group: San Diego/Inland

Monitor Stage: N/A

Flood Stage: 21.0 Feet

Plot Type:

Observed Data Credit
	Raw streamflow data is provided by the US Geological Survey (USGS). View USGS Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2022*	66	6.71	Dec 26, 2021
2021*	95	6.97	Jan 29, 2021
2020*	5,520	16.18	Apr 11, 2020
2019*	8,240	18.49	Feb 15, 2019
2018*	121	7.02	Jan 9, 2018
Historical High Stage/Flow Events (Period of Record - Oct 1946 to Present)*** - Ranked by Flow
1916	95,600	--	Jan 27, 1916
1993**	25,700	21.70	Jan 16, 1993
1980*	25,000	14.00	Feb 21, 1980
2005*	21,800	20.68	Jan 11, 2005
1995*	19,500	19.97	Mar 06, 1995
* Discharge affected by regulation or diversion
** Maximum since regulation by Lake Henshaw
*** Most recent continuous record back to Oct 1946 with segmented periods back to Apr 1912
**** No flow recorded during the entire water year

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Impacts - E19 Information
21.0 Feet	Damage unknown. Bridge approaches upstream threatened and at risk of undermining.
24.5 Feet	Damage unknown. Camino Del Rey, Couser Canyon, and Shearer Crossing Bridge approaches at risk of being washed out.
28.0 Feet	Scouring and undermining of roads and structures adjacent to the river channel. Bridge approaches designed to wash out at high flows destroyed. Indian gaming casinos parking facilities under water. Most significant damage upstream of levee with adjacent cropland underwater and homes threatened. Some infrastructure facilities damaged in city of Oceanside.
29.0 Feet	Overtopping levee. Henshaw Dam was not in place nor was the levee at time of record flow. Levee is designed for PMF of 85,000 cfs. Peak adjusted discharge of 1916 event with Henshaw Dam is estimated to be 54,000 cfs. This is also assumed to be the 100 year storm.

Official 7 Day National Weather Service Forecast (CAZ043)

Tonight: Partly cloudy this evening and becoming mostly cloudy. Patchy fog overnight. Lows 51 to 54. Light winds.

Friday: Mostly cloudy with patchy fog in the morning and becoming mostly sunny. Highs 67 to 71. Light winds becoming west 10 mph in the afternoon.

Friday Night: Partly cloudy in the evening and becoming mostly cloudy overnight with patchy fog. Lows 50 to 53. Areas of winds west to 10 mph in the evening becoming light.

Saturday: Mostly cloudy with patchy fog in the morning and Becoming partly cloudy. Highs 65 to 69 near the coast to 70 inland. Light winds becoming west 10 mph in the afternoon.

Saturday Night: Mostly clear in the evening and becoming partly cloudy. Lows 51 to 54. Areas of winds west to 10 mph in the evening becoming light.

Sunday: Partly cloudy in the morning and becoming mostly sunny. Highs 68 to 72 near the coast to 74 inland.

Sunday Night: Mostly clear in the evening and becoming mostly cloudy overnight with patchy fog. Lows 51 to 55.

Monday: Patchy fog in the morning. Partly cloudy. Highs 68 to 73.

Monday Night: Partly cloudy in the evening and becoming cloudy overnight with patchy fog. Lows 51 to 55.

Tuesday: Cloudy in the morning and becoming partly cloudy. Patchy fog in the morning. Highs 64 to 68.

Tuesday Night: Partly cloudy in the evening and becoming cloudy overnight with patchy fog. Lows 49 to 53.

Wednesday: Cloudy in the morning and becoming partly cloudy. Patchy fog in the morning. Highs 64 to 67.

Wednesday Night: Partly cloudy. Patchy fog overnight. Lows 48 to 53.

Thursday: Mostly cloudy with patchy fog in the morning and Becoming partly cloudy. Highs 64 to 68.

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 Diego 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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