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
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
2017*
2,750
14.31
Feb 28, 2017
 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
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ043)
Tonight: Partly cloudy. Lows around 67. Light winds.

Tuesday: Partly cloudy. Highs 76 to 81 near the coast to 82 to 87 inland. Light winds.

Tuesday Night: Partly cloudy. Lows 64 to 69. Light winds.

Wednesday: Partly cloudy in the morning and becoming mostly sunny. Highs 77 to 82 near the coast to 83 to 88 inland. Light winds.

Wednesday Night: Partly cloudy. Lows around 68. Light winds.

Thursday: Partly cloudy. Highs 78 to 83 near the coast to 84 to 89 inland.

Thursday Night: Partly cloudy. Lows 66 to 71.

Friday: Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Highs 77 to 82 near the coast to 83 to 88 inland.

Friday Night: Partly cloudy. Patchy fog overnight. Lows 66 to 71.

Saturday: Partly cloudy in the morning and becoming mostly sunny. Patchy fog in the morning. Highs 77 to 82 near the coast to 83 to 88 inland.

Saturday Night: Partly cloudy. Patchy fog overnight. Lows 66 to 71.

Sunday: Partly cloudy. Patchy fog in the morning. Highs 77 to 82 near the coast to 83 to 88 inland.

Sunday Night: Partly cloudy. Patchy fog overnight. Lows 65 to 70.

Monday: Partly cloudy. Highs 76 to 81 near the coast to 81 to 86 inland.
Impacts - E19 Information
21.0 FeetDamage unknown. Bridge approaches upstream threatened and at risk of undermining.
24.5 FeetDamage unknown. Camino Del Rey, Couser Canyon, and Shearer Crossing Bridge approaches at risk of being washed out.
28.0 FeetScouring 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 FeetOvertopping 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.