CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

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

Issuance Time:

May 31 2023 at 8:03 AM PDT

Next Issuance:

Jun 01 2023 at 9:00 AM PDT

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: Mostly cloudy. Lows 53 to 57. Areas of winds west 10 mph this evening becoming light.

Thursday: Mostly cloudy in the morning and becoming partly cloudy. Highs 65 to 68. Areas of winds west 10 mph.

Thursday Night: Cloudy. Lows 53 to 57. Areas of winds west 10 mph in the evening becoming light.

Friday: Cloudy in the morning and becoming partly cloudy. Highs 66 to 70. Areas of winds west to 10 mph and becoming 10 to 15 mph in the afternoon.

Friday Night: Partly cloudy in the evening and becoming mostly cloudy. Lows 53 to 56. Areas of winds west 10 mph in the evening becoming light.

Saturday: Cloudy in the morning and becoming partly cloudy. Highs 67 to 71.

Saturday Night: Partly cloudy in the evening and becoming mostly cloudy. Patchy fog overnight. Lows 53 to 57.

Sunday: Cloudy in the morning and becoming partly cloudy. Patchy fog in the morning. Highs 67 to 71.

Sunday Night: Mostly cloudy. Lows 55 to 58.

Monday: Cloudy in the morning and becoming mostly cloudy. Highs 64 to 68.

Monday Night: Cloudy. Lows 54 to 58.

Tuesday: Cloudy in the morning and becoming partly cloudy. Highs 65 to 68.

Tuesday Night: Mostly cloudy. Lows 54 to 58.

Wednesday: Cloudy in the morning and becoming mostly cloudy. Highs 66 to 69.

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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Verification - Historical Graphical RVF
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