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		River Group: Southern California

Monitor Stage: N/A

Flood Stage: 21.0 Feet

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
2020*	5,520	16.18	Apr 11, 2020
2019*	8,240	18.49	Feb 15, 2019
2018*	121	7.02	Jan 9, 2018
2017*	2,750	14.31	Feb 28, 2017
2016*	0****	--	--
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

Official 7 Day National Weather Service Forecast (CAZ043)

Today: Low clouds in the morning then mostly sunny. Highs around 66 near the coast to 68 to 73 inland. Light winds.

Tonight: Patchy low clouds in the evening then low clouds. Lows 53 to 58. Light winds.

Wednesday: Areas of low clouds in the morning then mostly sunny. Highs around 67 near the coast to 70 to 75 inland. Light winds.

Wednesday Night: Partly cloudy in the evening then areas of low clouds and fog. Lows 52 to 57. Light winds.

Thursday: Partly cloudy. Highs 68 to 73 near the coast to 75 inland. Light winds becoming southwest 15 mph in the afternoon.

Thursday Night: Partly cloudy in the evening then areas of low clouds. Lows around 56.

Friday: Areas of low clouds in the morning then partly cloudy. Highs 69 to 74.

Friday Night: Partly cloudy in the evening then areas of low clouds and fog. Lows 53 to 58.

Saturday: Areas of low clouds and fog in the morning then partly cloudy. Highs 68 to 73 near the coast to 74 inland.

Saturday Night: Partly cloudy. Lows 54 to 59.

Sunday: Partly cloudy. Highs 69 to 74 near the coast to 76 inland.

Sunday Night: Partly cloudy. Lows 54 to 59.

Monday: Partly cloudy in the morning and becoming mostly sunny. Highs 70 to 75 near the coast to 78 inland.

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.

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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