National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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SAN LUIS REY RIVER - OCEANSIDE (SLOC1)
Latitude: 33.22º NLongitude: 117.36º WElevation: 20 Feet
Location: San Diego County in CaliforniaRiver Group: Southern California
Monitor Stage: N/A Flood Stage: 21.0 Feet

Observed Data Credit
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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
2025*
136
7.16
Mar 15, 2025
2024*
1,080
9.36
Feb 6, 2024
2023*
3,050
12.57
Mar 15, 2023
2022*
66
6.71
Dec 26, 2021
2021*
95
6.97
Jan 29, 2021
 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
1937*
16,500
12.00
Feb 07, 1937
 * 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
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ043)
Tonight: Partly cloudy. Patchy fog overnight. Lows 54 to 57. Areas of winds southwest to 10 mph This Evening becoming light.

Monday: Patchy fog in the morning. Partly cloudy. Highs 71 to 76 near the coast to 79 to 84 inland. Areas of winds west to 10 mph.

Monday Night: Partly cloudy. Patchy fog overnight. Lows 56 to 59. Areas of winds southwest 10 mph in the evening becoming light.

Tuesday: Mostly cloudy with patchy fog in the morning and Becoming partly cloudy. Highs 68 to 72 near the coast to 74 inland. Areas of winds south 10 mph.

Tuesday Night: Partly cloudy in the evening and becoming mostly cloudy overnight with patchy fog. Lows 53 to 58. Light winds.

Wednesday: Partly cloudy with patchy fog in the morning and Becoming mostly sunny. Highs 68 to 72 near the coast to 74 inland.

Wednesday Night: Mostly clear in the evening and becoming partly cloudy. Lows 52 to 57.

Thursday: Partly cloudy in the morning and becoming mostly sunny. Highs 67 to 71 near the coast to 71 to 74 inland.

Thursday Night: Mostly clear in the evening and becoming partly cloudy. Lows 51 to 57.

Friday: Partly cloudy in the morning and becoming mostly sunny. Highs 67 to 71 near the coast to 71 to 74 inland.

Friday Night: Mostly clear in the evening and becoming partly cloudy. Lows 52 to 58.

Saturday: Partly cloudy in the morning and becoming mostly sunny. Highs 69 to 74 near the coast to 75 to 78 inland.

Saturday Night: Mostly clear in the evening and becoming partly cloudy. Lows 54 to 58.

Sunday: Partly cloudy. Highs 70 to 75 near the coast to 76 to 80 inland.
Flood Impacts
28.0 FeetExcess overflow of water has damaged some sewer and water mains in the city of oceanside. The lilac road bridge on the pala indian reservation has likely washed out. The rincon casino has been evacuated. Approaches to upstream crossings are likely damaged or washed out. North river road has likely been undermined in oceanside. The retainaing wall protecting homes in the rancho viejo project upstream from oceanside is likely compromised. Pala casino is at risk with possible evacuations.
24.5 FeetExtent of damage unknown. It is possible that the approaches to several of the upstream crossings will be damaged or washed out. The lilac road bridge on the pala indian reservation is likely impassable. Undermining of north river road in oceanside is possible. Undermining of the retaining wall protecting homes in the rancho viejo project is possible. Businesses in the flood plain not protected by the levee are at risk of innundation, including the pala casino parking areas and the rincon casino itself.
21.0 FeetApproaches to upstream bridges including camino del rey, shearer crossing, and couser canyon, among others, are threatened and possibly damaged. The lilac road bridge on the pala reservation is at risk.
12.0 FeetLOW-WATER CROSSINGS CAN BE IMPACTED WELL UPSTREAM OF THE GAGE BEFORE SIGNIFICANT GAGE RESPONSE OCCURS. GAGE HEIGHTS OF 9.5 TO 12 FT HAVE BEEN ASSOCIATED WITH THE CLOSING OF COLE GRADE ROAD AND LILAC ROADS.
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.