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:

Jan 30 2023 at 1:28 PM PST

Next Issuance:

Jan 31 2023 at 9:00 AM PST

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)

Tonight: Clear. Areas of frost late in the evening. Widespread frost after midnight. Lows in the upper 20s. Northwest winds up to 10 mph.

Tuesday: Sunny. Widespread frost in the morning. Highs in the mid 50s. North winds around 5 mph shifting to the southeast up to 5 mph in the afternoon.

Tuesday Night: Mostly clear. Areas of frost in the evening, then widespread frost and patchy fog after midnight. Lows in the lower 30s. East winds up to 5 mph.

Wednesday: Mostly sunny. Widespread frost and patchy fog in the morning. Highs in the upper 50s. Southeast winds up to 5 mph.

Wednesday Night: Partly cloudy. Areas of frost and patchy fog after midnight. Lows in the mid 30s. Southeast winds up to 5 mph.

Thursday: Partly sunny. Widespread frost in the morning. Highs in the lower 60s.

Thursday Night: Cloudy. Lows in the lower 40s.

Friday: Cloudy in the morning then becoming partly sunny. Highs in the upper 50s.

Friday Night: Mostly clear in the evening then becoming mostly cloudy. Lows in the upper 30s.

Saturday and Saturday Night: Mostly cloudy. Highs in the upper 50s. Lows in the lower 40s.

Sunday: Mostly cloudy. Chance of rain in the morning. Highs in the upper 50s. Chance of rain 40 percent.

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

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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