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:

Nov 13 2019 at 1:41 PM PST

Next Issuance:

Nov 14 2019 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
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
2014*	2,230	7.76	Mar 1, 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
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 cloudy. Patchy fog overnight. Lows 49 to 56. Light winds.

Thursday: Mostly cloudy in the morning and becoming partly cloudy. Patchy fog in the morning. Highs 66 to 71 near the coast to 72 inland. Light winds.

Thursday Night: Partly cloudy in the evening and becoming cloudy. Patchy fog overnight. Lows 48 to 56. Light winds.

Friday: Cloudy in the morning and becoming partly cloudy. Patchy fog in the morning. Highs 68 to 73. Light winds.

Friday Night: Partly cloudy. Patchy fog overnight. Lows 47 to 55. Light winds.

Saturday: Partly cloudy in the morning and becoming mostly sunny. Patchy fog in the morning. Highs 70 to 75 near the coast to 76 to 81 inland.

Saturday Night: Mostly clear. Lows 50 to 57.

Sunday: Mostly sunny. Highs 77 to 82 near the coast to 85 inland.

Sunday Night: Mostly clear. Lows 50 to 57.

Monday: Mostly sunny. Highs 74 to 79 near the coast to 81 inland.

Monday Night: Mostly clear in the evening and becoming partly cloudy. Patchy fog overnight. Lows 49 to 56.

Tuesday: Partly cloudy. Patchy fog in the morning. Highs 67 to 72 near the coast to 72 inland.

Tuesday Night: Partly cloudy in the evening, then cloudy with a slight chance of showers overnight. Lows 48 to 55.

Wednesday: Cloudy in the morning and becoming partly cloudy. Slight chance of showers. Highs 68 to 73.

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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