National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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SAN JOAQUIN RIVER - NEWMAN (NWMC1)
Latitude: 37.35º NLongitude: 120.98º WElevation: 90 Feet
Location: Merced County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Monitor Stage: 63.0 FeetFlood Stage: 69.4 FeetDanger Stage: 70.4 Feet

Observed Data Credit
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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
ESRI™ Locator Map
Impacts - E19 Information
55.0 FeetThe 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 FeetWater seepage begins outside the levee along the river at the Newman Wastewater Treatment Plant.
63.0 FeetLevee patrols required.
63.3 FeetSouth Sand Slough will flow.
63.6 FeetSand Slough will flow.
64.0 FeetThe Waste Water Treatment Plant beings taking on river water and flood pumping begins.
65.0 FeetThe Fisherman's Bend Trailer Park north of Hills Ferry Road begins to flood.
66.14 Feet01/28/1997 stage.
66.26 FeetPeak stage of record - 04/09/2006.
69.4 FeetProject flood stage.
70.0 FeetFlood water reaches the top of the levee that surrounds the Newman Waste Water Treatment Plant.
70.4 FeetDanger stage.
71.7 FeetTop of levee on the right bank.
Official 7 Day National Weather Service Forecast   (CAZ302)
Today: Rain showers and slight chance of thunderstorms until late afternoon, then rain showers likely and slight chance of thunderstorms late in the afternoon. Highs in the lower 60s. South winds 5 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of precipitation 90 percent.

Tonight: Rain and slight chance of thunderstorms in the evening, then rain showers and slight chance of thunderstorms after midnight. Lows in the upper 40s. South winds 10 to 15 mph with gusts to around 30 mph. Chance of precipitation near 100 percent.

Saturday: Rain showers. Highs in the mid 50s. Southwest winds 5 to 15 mph. Chance of showers near 100 percent.

Saturday Night: Rain showers in the evening, then chance of rain after midnight. Lows in the lower 40s. Southeast winds 5 to 10 mph. Chance of precipitation 90 percent.

Sunday: Partly sunny. Chance of rain in the morning. Highs in the upper 50s. Southeast winds 5 to 10 mph shifting to the southwest in the afternoon. Chance of rain 40 percent.

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

Monday Night: Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 30s.

Tuesday through Wednesday: Mostly cloudy with a 40 percent chance of rain. Highs in the lower 60s. Lows in the lower 40s.

Wednesday Night: Mostly cloudy with chance of rain in the evening, then partly cloudy after midnight. Lows in the lower 40s. Chance of rain 40 percent.

Thursday: Mostly sunny. Highs around 60.
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.