CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

PAJARO RIVER - CHITTENDEN (AROC1)

Latitude: 36.90º N	Longitude: 121.60º W	Elevation: 82 Feet
Location: Santa Cruz County in California		Bulletin Group: Central Coast		River Group: Salinas/Pajaro

Issuance Time:

Dec 07 2023 at 1:50 PM PST

Next Issuance:

Dec 08 2023 at 9:00 AM PST

Monitor Stage: 25.0 Feet

Flood Stage: 32.0 Feet

Plot Type:

Please Note: 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.

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	1,150	11.57	Dec 28, 2021
2021	1,160	9.97	Jan 29, 2021
2020	1,070	9.60	Apr 6, 2020
2019	4,540	20.49	Feb 15, 2019
2018	909	9.22	Mar 23, 2018
Historical High Stage/Flow Events (Period of Record - February 1938* to Present) - Ranked by Flow
1998	25,100	33.73	Feb 3, 1998
1956	24,000	32.46	Dec 24, 1955
1958	23,500	33.11	Apr 3, 1958
1995	21,500	32.20	Mar 11, 1995
1969	17,800	23.90	Feb 25, 1969
* Missing data during 1939, otherwise record complete

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Impacts - E19 Information
25.0 Feet	Scouring of lowlands throughout the Pajaro Valley in areas not protected by levees.
28.0 Feet	Some minor flooding of lowest agricultural areas in all reaches above Chittenden. Some secondary roads begin to flood. Watsonville levees within 3 feet of top.
29.5 Feet	Levees protecting Watsonville within 2 feet of top. Moderate bank erosion and sediment deposition throughout reach. Some secondary roads flooded. State Highway 129 between US 101 and Watsonville begins to flood at railroad underpass 300 feet below gage and other lower spots along the river.
32.0 Feet	Significant damage from bank erosion and sediment deposition throughout reach. Some primary and many secondary roads flooded. Minor flooding of low portions of towns within the reach of the gage begins. Damage to roads and bridges possible due to erosion or logjams.
32.5 Feet	Widespread flooding through the Pajaro Valley, with extensive damage and possible loss of life. Extensive erosion and logjam damage to highways and bridges. Many primary and most secondary roads flooded making transportation difficult.
33.11 Feet	Extensive flood damage throughout the Pajaro Valley. Transportation extremely difficult. Watsonville and Pajaro levees overtopped or severely strained if sandbagged.
33.5 Feet	Severe damage in Pajaro Valley, especially in Pajaro and Watsonville areas and likely near San Juan Bautista along the San Benito River and portions south of Gilroy near the Pajaro River. Transportation essentially impossible.
33.73 Feet	Stage and flow of record. 02/03/1998. 25,100 cfs.
35.0 Feet	Bankfull at gage. Transportation impossible. Levees protecting Watsonville and Pajaro in great danger of failing.

Official 7 Day National Weather Service Forecast (CAZ529)

Today: Sunny. Patchy fog in the morning. Highs around 60. North winds 5 to 10 mph.

Tonight: Mostly clear. Areas of frost after midnight. Lows in the mid 30s. North winds 5 to 10 mph.

Saturday: Sunny in the morning then becoming partly cloudy. Areas of frost in the morning. Highs in the mid 60s. Northeast winds around 5 mph.

Saturday Night: Partly cloudy. Lows in the upper 30s. Northeast winds around 5 mph.

Sunday: Mostly cloudy. Highs in the upper 60s. Northeast winds around 5 mph.

Sunday Night: Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 40s.

Monday: Partly cloudy in the morning then becoming sunny. Highs in the mid 60s.

Monday Night through Wednesday: Mostly clear. Lows in the lower 40s. Highs in the mid 60s.

Wednesday Night and Thursday: Partly cloudy. Lows in the lower 40s. Highs in the mid 60s.

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 Francisco Bay Area-Monterey 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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