CNRFC - Hydrology - Observed River/Reservoir Conditions

MERCED RIVER - YOSEMITE NP AT POHONO BRIDGE (POHC1)

Latitude: 37.72º N	Longitude: 119.67º W	Elevation: 3862 Feet
Location: Mariposa County in California		River Group: San Joaquin

Monitor Stage: N/A

Flood Stage: 10.0 Feet

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
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
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Official 7 Day National Weather Service Forecast (CAZ324)

Today: Mostly sunny until late afternoon then becoming mostly cloudy. Highs 53 to 61. East winds up to 5 mph shifting to the west in the afternoon.

Tonight: Mostly clear. Lows 34 to 42. Northeast winds up to 5 mph.

Tuesday: Sunny. Highs 50 to 58. Northeast winds up to 5 mph shifting to the west in the afternoon.

Tuesday Night: Clear. Lows 34 to 42. East winds 5 to 10 mph.

Wednesday: Sunny. Highs 52 to 62. East winds up to 10 mph shifting to the west in the afternoon.

Wednesday Night: Partly cloudy. Lows 36 to 44.

Thursday through Friday Night: Mostly cloudy. Highs 52 to 63. Lows 38 to 47.

Saturday and Saturday Night: Partly cloudy. Highs 56 to 64. Lows 37 to 45.

Sunday: Mostly sunny with a 40 percent chance of rain. Highs 54 to 62.

Impacts - E19 Information
7.0 Feet	River is closed to rafters and floatation.
9.5 Feet	Lower Pines and Housekeeping Camp begin flooding.
10.0 Feet	Merced River at Pohono Bridge begins to flood.
11.4 Feet	Water begins to overtop road curbs on Northside Drive. Swinging Bridge overtops.
12.0 Feet	Water on road at Northside Drive, Southside Drive, Sentinel Crossover, and Highway 140 near Cookie Cliff.
12.5 Feet	Northside Drive at Wosky Pond, El Capitan Crossover, and Sentinel Crossover are impassible to vehicles.
23.45 Feet	Flood 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.

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