CNRFC - Hydrology - River Guidance - Graphical RVF

SANTA MARGARITA RIVER - YSIDORA (YDRC1)

Latitude: 33.31º N	Longitude: 117.35º W	Elevation: 75 Feet
Location: San Diego County in California		River Group: Southern California

Issuance Time:

Jan 27 2022 at 12:56 PM PST

Next Issuance:

Jan 28 2022 at 9:00 AM PST

Monitor Stage: 8.2 Feet

Flood Stage: 11.2 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
2020*	6,680	10.78	Apr 10, 2020
2019*	29,500	15.07	Feb 14, 2019
2018*	1,830	7.18	Jan 10, 2018
2017*	31,200	14.60	Jan 22, 2017
2016*	1,060	7.14	Jan 7, 2016
Historical High Stage/Flow Events (Period of Record - Sep 2001 to Present)** - Ranked by Flow
1993*	44,000***	20.47***	Jan 16, 1993
1927	33,600****	18.00	Feb 16, 1927
2017*	31,200	14.60	Jan 22, 2017
1938	31,000	12.70	Mar 3, 1938
2019*	29,500	15.07	Feb 14, 2019
2005*	25,600***	13.5***	Jan 11, 2005
1980*	24,000***	18.80	Feb 18, 1980

* Discharge affected by regulation or diversion
** Most recent continuous record back to Sep 2001 with segmented periods back to Feb 1923
*** Estimated value
**** Highest flow since regulation by Skinner Reservoir began in 1974

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ043)

Tonight: Mostly clear in the evening and becoming partly cloudy. Lows 44 to 49. Light winds becoming east 15 mph with gusts to 25 mph overnight.

Friday: Partly cloudy. Highs 71 to 76. Areas of winds east 15 to 20 mph. Gusts to 30 mph and becoming 25 mph in the afternoon.

Friday Night: Mostly clear in the evening and becoming partly cloudy. Lows 44 to 50. Areas of winds east 15 mph with gusts to 25 mph in the evening becoming light.

Saturday: Partly cloudy. Highs 66 to 71 near the coast to 71 inland. Light winds.

Saturday Night: Partly cloudy. Lows 43 to 48. Light winds.

Sunday: Mostly sunny. Highs 66 to 71.

Sunday Night: Mostly clear in the evening and becoming partly cloudy. Lows 42 to 47.

Monday: Partly cloudy. Highs 64 to 69.

Monday Night: Partly cloudy. Lows 44 to 49.

Tuesday: Partly cloudy. Highs around 65.

Tuesday Night: Mostly clear. Lows 42 to 47.

Wednesday: Mostly sunny. Highs around 66.

Wednesday Night: Mostly clear. Lows 39 to 44.

Thursday: Mostly sunny. Highs around 66.

Impacts - E19 Information
8.2 Feet	Personnel begin regular patrols along the levee.
11.2 Feet	Vandegrift Road has begun to flood downstream of the gage. Stuart Mesa Road closures can be expected.
13.3 Feet	Vandegrift Road flooded for several miles downstream of the gage site. Stuart Mesa Road is flooded near the bridge.
16.0 Feet	Widespread inundation on Camp Pendleton with base evacuations likely. 01/16/1993 - flood of record.

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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