CNRFC - Hydrology - River Guidance - Graphical RVF

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

Issuance Time:

Mar 20 2023 at 2:58 PM PDT

Next Issuance:

Mar 21 2023 at 9:00 AM PDT

Monitor Stage: 63.0 Feet

Flood Stage: 69.4 Feet

Danger Stage: 70.4 Feet

Plot Type:

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
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
2017*	21,000	65.88	Feb 15, 2017
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: Breezy. Rain through the day. Slight chance of thunderstorms in the afternoon. Highs in the upper 50s. Southeast winds 10 to 15 mph shifting to the south 15 to 25 mph in the afternoon. Chance of precipitation near 100 percent.

Tonight: Rain in the evening, then rain likely after midnight. Lows in the mid 40s. Southeast winds 10 to 20 mph with gusts to around 35 mph. Chance of rain 90 percent.

Wednesday: Rain likely. Highs in the upper 50s. Southeast winds 10 to 20 mph. Chance of rain 70 percent.

Wednesday Night: Mostly cloudy. Lows in the mid 40s. West winds 5 to 10 mph.

Thursday: Partly sunny. Highs in the lower 60s. Northwest winds 5 to 15 mph.

Thursday Night through Friday Night: Partly cloudy. Lows in the upper 30s. Highs in the upper 50s.

Saturday through Sunday: Mostly clear. Highs around 60. Lows in the mid 30s.

Sunday Night: Partly cloudy. Lows in the upper 30s.

Monday: Partly sunny with a 50 percent chance of rain. Highs in the lower 60s.

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.
63.6 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	Peak stage of record (01/28/1997).
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.

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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