CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

SANTA YNEZ RIVER - NARROWS (NRWC1)

Latitude: 34.64º N	Longitude: 120.42º W	Elevation: 85 Feet
Location: Santa Barbara County in California		Bulletin Group: Southern California		River Group: Southern California

Issuance Time:

Jul 09 2025 at 7:35 AM PDT

Next Issuance:

Jul 10 2025 at 9:00 AM PDT

Action/Monitor: 11.0 Feet

Minor Flood: 15.0 Feet

Moderate Flood: 23.0 Feet

Major Flood: 28.0 Feet

Plot Type:

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.

Observed Data Credit
	Raw streamflow data is provided by the US Geological Survey (USGS). View US Geological Survey (USGS) Data for this station location.

Historical Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2024*	12,100	13.43	Feb 20, 2024
2023*	24,400	17.76	Feb 25, 2023
2022*	592	4.62	Dec 23, 2021
2021*	2,710	6.96	Jan 28, 2021
2020*	1,710	6.47	Apr 6, 2020
Historical High Stage/Flow Events (Period of Record - Nov 1906 to Present)** - Ranked by Flow
1969*	80,000	24.20	Jan 25, 1969
1978*	63,200	16.80	Mar 04, 1978
2001*	42,300	20.56	Mar 06, 2001
1983*	42,300	14.50	Mar 01, 1983
* Discharge affected by regulation or diversion
** Most recent continuous record back to Oct 1980 with segmented periods back to Nov 1906

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
24.0 Feet	Moderate flooding along river threatens farms and the city of lompoc.
15.0 Feet	Flooding is a threat to lower lompoc, especially around Floradale Ave.
13.0 Feet	Flooding threatens agricultural land and outlying grounds of federal prison.

Official 7 Day National Weather Service Forecast (CAZ347)

Tonight: Low clouds and fog developing. Fog locally dense with visibility one quarter mile or less. Lows in the lower to mid 50s. Northwest winds 15 to 25 mph.

Thursday: Areas of low clouds and fog in the morning then sunny. Fog locally dense with visibility one quarter mile or less. Highs in the 70s to around 80 except the mid 80s to around 90 farthest inland. Northwest winds around 15 mph in the afternoon.

Thursday Night: Mostly clear early then low clouds and fog. Lows in the upper 40s to mid 50s. Northwest winds 15 to 25 mph.

Friday: Low clouds and fog mostly clearing in the afternoon. Highs in the mid 60s to mid 70s except the upper 70s to mid 80s farthest inland.

Friday Night: Low clouds and fog developing. Lows in the upper 40s to mid 50s.

Saturday: Low clouds and fog mostly clearing in the afternoon. Highs in the mid 60s to mid 70s except the mid 70s to around 80 farthest inland.

Saturday Night: Low clouds and fog developing. Lows in the upper 40s and 50s.

Sunday: Low clouds and fog mostly clearing in the afternoon. Highs in the mid 60s to mid 70s except the mid 70s to around 80 farthest inland.

Sunday Night: Low clouds and fog developing. Lows in the lower to mid 50s.

Monday: Low clouds and fog in the morning then sunny. Highs in the mid 60s to mid 70s except around 80 farthest inland.

Monday Night: Mostly clear early then low clouds and fog. Lows in the lower to mid 50s.

Tuesday: Low clouds and fog in the morning then sunny. Highs in the mid 60s to mid 70s except the mid 70s to around 80 farthest inland.

Tuesday Night: Mostly clear early then low clouds and fog. Lows in the lower to mid 50s.

Wednesday: Low clouds and fog in the morning then sunny. Highs in the mid 60s to mid 70s except around 80 farthest inland.

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 Los Angeles-Oxnard 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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