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 26 2021 at 2:25 PM PST

Next Issuance:

Jan 27 2021 at 9:00 AM PST

Monitor Stage: 8.2 Feet

Flood Stage: 11.2 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
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
2015*	1,550	7.15	Dec 4, 2014
Historical High Stage/Flow Events (Period of Record - Sep 2001 to Present)**
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)

Today: Partly cloudy. Highs around 60. Light winds.

Tonight: Partly cloudy. Lows 39 to 45. Light winds.

Thursday: Mostly cloudy. Slight chance of showers in the afternoon. Highs around 62. Light winds becoming south 15 mph in the afternoon. Chance of measurable precipitation 20 percent.

Thursday Night: Mostly cloudy. Chance of showers and slight chance of thunderstorms in the evening, then showers and slight chance of thunderstorms overnight. Locally heavy rainfall possible overnight. Lows 45 to 50. Areas of winds south 15 mph.

Friday: Showers and slight chance of thunderstorms. Locally heavy rainfall possible in the morning. Highs 55 to 60. Areas of winds southwest 15 mph. Gusts to 25 mph in the afternoon.

Friday Night: Partly cloudy. Slight chance of showers in the evening. Lows 39 to 44.

Saturday: Mostly sunny. Highs around 60.

Saturday Night: Mostly clear. Lows 38 to 45.

Sunday: Mostly sunny in the morning and becoming partly cloudy. Highs 62 to 67 near the coast to 67 inland.

Sunday Night: Partly cloudy. Lows 42 to 48.

Monday: Mostly cloudy in the morning and becoming partly cloudy. Highs around 66.

Monday Night: Mostly cloudy in the evening and becoming partly cloudy. Lows 43 to 49.

Tuesday: Partly cloudy. Slight chance of showers in the afternoon. Highs around 62.

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.

NWS RSS Feed

Verification - Historical Graphical RVF
Month:	Day:	Year:	Cycle:
To view other verification locations, use our Historical Graphical River Forecast Interface.