CNRFC - Hydrology - Observed River/Reservoir Conditions

SAN JOAQUIN RIVER - NEWMAN (NWMC1)

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

Monitor Stage: 63.0 Feet

Flood Stage: 69.4 Feet

Danger Stage: 70.4 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
2023*	19,800	65.93	Mar 17, 2023
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
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

Official 7 Day National Weather Service Forecast (CAZ302)

Today: Sunny. Highs in the lower 80s. East winds up to 5 mph shifting to the north in the afternoon.

Tonight: Clear. Lows in the lower 50s. Northwest winds up to 5 mph.

Tuesday: Mostly sunny. Highs in the upper 80s. East winds up to 5 mph.

Tuesday Night: Partly cloudy. Lows in the upper 50s. North winds up to 5 mph.

Wednesday: Sunny. Highs around 80. Northwest winds up to 10 mph.

Wednesday Night and Thursday: Cooler. Partly cloudy. Lows in the mid 50s. Highs in the upper 60s.

Thursday Night: Partly cloudy. Lows in the mid 40s.

Friday: Sunny. Highs in the upper 60s.

Friday Night and Saturday: Partly cloudy. Lows in the lower 40s. Highs in the upper 60s.

Saturday Night: Mostly cloudy. Lows around 50.

Sunday: Mostly cloudy with a 50 percent chance of rain. Highs in the upper 60s.

Flood Impacts
71.7 Feet	Top of levee rb
70.4 Feet	Danger stage.
70.0 Feet	Flood water reaches the top of the levee that surrounds the Newman waste water treatment plant.
69.4 Feet	Project flood stage.
66.26 Feet	Peak stage of record. 4/9/2006
66.14 Feet	1/28/1997
65.0 Feet	The fisherman's bend trailer park north of hills ferry road begins to flood.
64.0 Feet	The Wastewater Treatment Plant begins taking on river water and flood pumping begins.
63.6 Feet	Sand slough will flow.
63.0 Feet	Monitor stage. Levee patrols required.
62.0 Feet	Water seepage begins outside the levee along the river, near the newman waste water treatment plant.
55.0 Feet	The city of Newman Wastewater Treatment Plant (WWTP) begins to flood at the lowest point. Newman Police Department shooting range a the WWTP is also affected.

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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