CNRFC - Hydrology - River Guidance - Graphical RVF

Location:

SAN JOAQUIN RIVER - NEWMAN (NWMC1)

Latitude: 37.35º N	Longitude: 120.98º W	Elevation: 90 Feet
Location: Merced County in California		Bulletin Group: San Joaquin		River Group: San Joaquin

Issuance Time:

Nov 28 2023 at 8:03 AM PST

Next Issuance:

Nov 28 2023 at 3:00 PM PST

Monitor Stage: 63.0 Feet

Flood Stage: 69.4 Feet

Danger Stage: 70.4 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.

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*	1,260	51.74	Dec 30, 2021
2021*	1,760	53.26	Feb 1, 2021
2020*	2,910	55.79	Oct 1, 2019
2019*	9,050	62.00	Feb 21, 2019
2018*	4,950	57.84	Apr 12, 2018
Historical High Stage/Flow Events (Period of Record - Apr 1912 to Present) - Ranked by Flow
1997*	36,200	66.14	Jan 28, 1997
1938*	33,000	--	Mar 07, 1938
1983*	30,700	65.78	Mar 04, 1983
1969*	28,000	65.90	Feb 26, 1969
2006*	24,600	66.26	Apr 09, 2006
* Discharge affected by regulation or diversion

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Impacts - E19 Information
55.0 Feet	The city of Newman Wastewater Treatment Plant (WWTP) begins to flood at lowest point. Newman Police Department shooting range at the WWTP is also affected.
62.0 Feet	Water seepage begins outside the levee along the river at the Newman Wastewater Treatment Plant.
63.0 Feet	Levee patrols required.
63.3 Feet	South Sand Slough will flow.
63.6 Feet	Sand Slough will flow.
64.0 Feet	The Waste Water Treatment Plant beings taking on river water and flood pumping begins.
65.0 Feet	The Fisherman's Bend Trailer Park north of Hills Ferry Road begins to flood.
66.14 Feet	01/28/1997 stage.
66.26 Feet	Peak stage of record - 04/09/2006.
69.4 Feet	Project flood stage.
70.0 Feet	Flood water reaches the top of the levee that surrounds the Newman Waste Water Treatment Plant.
70.4 Feet	Danger stage.
71.7 Feet	Top of levee on the right bank.

Official 7 Day National Weather Service Forecast (CAZ302)

Today: Sunny. Widespread frost early in the morning. Highs in the mid 60s. Southeast winds up to 10 mph.

Tonight: Mostly clear. A 20 percent chance of rain after midnight. Lows in the mid 30s. West winds up to 5 mph shifting to the east after midnight.

Wednesday: Mostly sunny. Patchy fog in the morning. Highs around 60. Northeast winds up to 5 mph shifting to the northwest around 5 mph in the afternoon.

Wednesday Night: Mostly clear. Patchy frost after midnight. Lows in the mid 30s. Northwest winds up to 5 mph.

Thursday: Mostly sunny. Patchy frost in the morning. A 40 percent chance of rain in the afternoon. Highs in the upper 50s. North winds up to 10 mph.

Thursday Night: Mostly cloudy with a 40 percent chance of rain. Lows in the upper 30s.

Friday and Friday Night: Partly cloudy. Highs in the upper 50s. Lows in the mid 30s.

Saturday: Partly sunny. Highs in the upper 50s.

Saturday Night and Sunday: Partly cloudy. Patchy frost. Lows in the mid 30s. Highs in the upper 50s.

Sunday Night and Monday: Mostly cloudy. Lows in the upper 30s. Highs in the upper 50s.

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 Joaquin Valley-Hanford 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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