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

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MERCED RIVER - STEVINSON (STVC1)
Latitude: 37.37º NLongitude: 120.93º WElevation: 82 Feet
Location: Merced County in CaliforniaRiver Group: San Joaquin
Monitor Stage: 68.0 FeetFlood Stage: 71.0 Feet

Observed Data Credit
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Raw streamflow data is provided by the California Department of Water Resources.
View CA DWR Data for this station location.

Historical Stage/Flow Data
Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months.
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2025* 2,034 63.13 Mar 20, 2025
2024* 4,370 68.25 Mar 5, 2024
2023* 6,010 71.44 Mar 21, 2023
2022* 863 60.77 Oct 18, 2021
2021* 604 59.42 Oct 28, 2020
 Historical High Stage/Flow Events (Period of Record - 1944 to Present) - Ranked by Flow
1951* 13,600 73.81 Dec 05, 1950
2017* 7,540 71.63 Feb 26, 2017
1984 7,420 70.10 Mar 14, 1984
1969* 7,190 70.00 Jan 25, 1969
1967* 6,510 69.40 Jul 04, 1967
2011* 6,400 70.51 Mar 21, 2011
 * Discharge affected by regulation or diversion
 ** Incomplete records
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ302)
Tonight: Chance of rain early in the evening, then rain in the late evening and overnight. Lows in the upper 40s. Southeast winds up to 10 mph with gusts to around 30 mph. Chance of rain near 100 percent.

washingtons birthday: Breezy, cooler. Rain in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Near steady temperature in the lower 50s. Southeast winds 10 to 15 mph shifting to the south 15 to 25 mph in the afternoon. Gusts up to 45 mph. Chance of precipitation near 100 percent.

Monday Night: Rain showers in the evening, then chance of rain after midnight. Lows in the lower 40s. Southwest winds up to 10 mph with gusts to around 30 mph. Chance of precipitation 90 percent.

Tuesday: Rain showers. Highs in the lower 50s. South winds 10 to 15 mph with gusts to around 30 mph. Chance of showers near 100 percent.

Tuesday Night: Rain showers in the evening, then chance of rain after midnight. Lows in the upper 30s. South winds around 10 mph shifting to the west after midnight. Chance of precipitation near 100 percent.

Wednesday: Partly sunny with a 50 percent chance of rain. Highs around 50.

Wednesday Night: Rain likely. Lows in the upper 30s. Chance of rain 70 percent.

Thursday: Rain likely in the morning, then chance of rain in the afternoon. Highs around 50. Chance of rain 60 percent.

Thursday Night: Mostly cloudy with chance of rain in the evening, then partly cloudy after midnight. Lows in the mid 30s. Chance of rain 30 percent.

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

Sunday: Partly sunny. Chance of rain in the afternoon. Highs around 60. Chance of rain 40 percent.
Flood Impacts
70.5 FeetWater is up to the maintenance building in Hagaman Park.
69.0 FeetThe playground area in Hagaman Park along Highway 165 is flooded.
65.0 FeetHagaman Park along Highway 165 begins to flood.
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.