CNRFC - Hydrology - Observed River/Reservoir Conditions

MERCED RIVER - YOSEMITE 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
2015	2,370	6.16	Feb 9, 2015
2014	1,680	5.33	Apr 19, 2014
2013	2,780	6.62	Apr 30, 2013
2012	4,230	8.04	Apr 26, 2012
2011	7,160	10.43	Jun 16, 2011
Historical High Stage/Flow Events (Period of Record - Oct 1916 to Present)
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 (CAZ096)

Tonight: Mostly clear. Near the crest, a 50 percent chance of thunderstorms in the evening. Lows 54 to 64 at 5000 feet and 43 to 53 at 8000 feet.

Wednesday: Sunny. A 20 percent chance of thunderstorms in the afternoon. Near the crest, a 40 percent chance of thunderstorms in the afternoon. Highs 82 to 90 at 5000 feet and 68 to 78 at 8000 feet.

Wednesday Night: Partly cloudy. Slight chance of thunderstorms in the evening. Near the crest, mostly cloudy with a 40 percent chance of thunderstorms in the evening, then mostly clear after midnight. Lows 55 to 65 at 5000 feet and 43 to 53 at 8000 feet.

Thursday: Sunny. Slight chance of thunderstorms in the afternoon. Highs 81 to 89 at 5000 feet and 68 to 76 at 8000 feet.

Thursday Night: Mostly clear. Slight chance of thunderstorms in the evening. Lows 56 to 66 at 5000 feet and 44 to 54 at 8000 feet.

Friday through Saturday: Partly cloudy with a slight chance of thunderstorms. Highs 83 to 93 at 5000 feet and 71 to 81 at 8000 feet. Lows 57 to 67 at 5000 feet and 45 to 55 at 8000 feet.

Saturday Night through Tuesday: Partly cloudy with a slight chance of thunderstorms. Lows 61 to 71 at 5000 feet and 48 to 58 at 8000 feet. Highs 84 to 94 at 5000 feet and 71 to 81 at 8000 feet.

Impacts - E19 Information
6.5 Feet	River is closed to rafters and floatation.
9.0 Feet	Chapel Meadow (south side of river) and Cooks Meadow (north side of river) begins to experience overflow.
9.5 Feet	Portion of Lower Pines Campground becomes flooded. Limited site-specific evacuations begin at Housekeeping Camp located along the south-facing bank of the Merced River. (Upstream from Sentinel Bridge and downstream from Stoneman Bridge)
10.0 Feet	Western portion of North Pines Campground, located at the east end of Yosemite Valley between the confluence of the Merced River and Tenaya Creek, begins to flood. Water rises to the base of the swinging bridge downstream from Chapel Meadow.
12.5 Feet	Northside Drive and Southside Drive, which are the main roads in Yosemite Valley, become flooded and are closed to traffic.
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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