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 - YOSEMITE NP AT POHONO BRIDGE (POHC1)
Latitude: 37.72º NLongitude: 119.67º WElevation: 3862 Feet
Location: Mariposa County in CaliforniaRiver Group: San Joaquin
Monitor Stage: N/A Flood Stage: 10.0 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
4,810
8.55
Oct 25 2021
2021
2,160
5.92
May 6, 2021
2020
3,560
7.41
Apr 30, 2020
2019
6,770
10.13
Jun 6, 2019
2018
12,100
13.68
Apr 7, 2018
 Historical High Stage/Flow Events (Period of Record - Oct 1916 to Present) - Ranked by Flow
1997
24,600
23.43
Jan 03, 1997
1956
23,400
21.52
Dec 23, 1955
1951
23,000
19.98
Nov 19, 1950
1938
22,000
19.10
Dec 11, 1937
1965
18,000
16.96
Dec 23, 1964
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ324)
Today: Windy. Rain and snow in the morning, then rain showers, snow showers and slight chance of thunderstorms in the afternoon. Snow may be heavy at times. Snow accumulation up to 15 inches. Snow level 5600 feet. Highs 36 to 44. Southwest winds 15 to 30 mph. Gusts up to 45 mph in the afternoon. Chance of precipitation near 100 percent.

Tonight: Very windy. Colder. Rain and snow in the evening, then rain showers, snow showers and slight chance of thunderstorms after midnight. Precipitation may be heavy at times. Snow accumulation up to 27 inches. Snow level 5200 feet. Lows 25 to 31. Southwest winds 25 to 40 mph with gusts to around 60 mph. Chance of precipitation near 100 percent.

Saturday: Windy. Snow showers. Snow may be heavy at times. Snow accumulation of 2 to 21 inches. Highs 32 to 40. Southwest winds 25 to 30 mph with gusts to around 60 mph decreasing to 15 to 25 mph in the afternoon. Chance of snow near 100 percent.

Saturday Night: Windy. Snow showers in the evening, then snow after midnight. Snow may be heavy at times. Heavy snow accumulations. Near steady temperature around 30. Southwest winds 20 to 30 mph with gusts to around 45 mph. Chance of snow near 100 percent.

Sunday: Mostly cloudy with a 50 percent chance of snow. Highs 31 to 39. Southwest winds 10 to 15 mph.

Sunday Night: Mostly cloudy with a 30 percent chance of snow in the evening, then partly cloudy after midnight. Lows 18 to 24.

Monday through Tuesday: Mostly cloudy. Highs 37 to 48. Lows 25 to 31.

Tuesday Night: Mostly cloudy with a 40 percent chance of rain and snow. Lows 27 to 33.

Wednesday and Wednesday Night: Mostly cloudy with a 50 percent chance of snow and rain. Highs 38 to 46. Lows 25 to 31.

Thursday: Mostly sunny. Highs 38 to 46.
Impacts - E19 Information
7.0 FeetRiver is closed to rafters and floatation.
9.5 FeetLower Pines and Housekeeping Camp begin flooding.
10.0 FeetMerced River at Pohono Bridge begins to flood.
11.4 FeetWater begins to overtop road curbs on Northside Drive. Swinging Bridge overtops.
12.0 FeetWater on road at Northside Drive, Southside Drive, Sentinel Crossover, and Highway 140 near Cookie Cliff.
12.5 FeetNorthside Drive at Wosky Pond, El Capitan Crossover, and Sentinel Crossover are impassible to vehicles.
23.45 FeetFlood of record - 01/02/1997. $178 Million damage to Yosemite Valley.
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.