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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 AT POHONO BRIDGE (POHC1)
Latitude: 37.72º NLongitude: 119.67º WElevation: 3862 Feet
Location: Mariposa County in CaliforniaRiver Group: San Joaquin
Issuance Time: Jul 29 2014 at 7:29 AM PDTNext Issuance: Jul 30 2014 at 9:00 AM PDT
Monitor Stage: N/A Flood Stage: 10.0 Feet
Verification - Historical Graphical RVF
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Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
2013
2,780
6.62
Apr 30, 2013
2012
4,230
8.04
Apr 26, 2012
2011
7,160
10.43
Jun 16, 2011
2010
7,010
10.45
Jun 07, 2010
2009
4,900
8.78
May 02, 2009
 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
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Official 7 Day National Weather Service Forecast   (CAZ096)
Today: Mostly cloudy. Near the crest and slight chance of showers in the morning and then chance of showers and slight chance of thunderstorms in the afternoon. Areas of smoke through the day. A 20 percent chance of thunderstorms in the afternoon. Highs 87 to 95 at 5000 feet and 70 to 78 at 8000 feet.

Tonight: Mostly cloudy with a 20 percent chance of thunderstorms in the evening and then partly cloudy after midnight. Areas of smoke. Lows 56 to 64 at 5000 feet and 50 to 58 at 8000 feet.

Wednesday: Mostly sunny in the morning then becoming mostly cloudy. Areas of smoke through the day. Slight chance of thunderstorms in the afternoon. Near the crest and chance of showers and slight chance of thunderstorms in the afternoon. Highs 88 to 96 at 5000 feet and 71 to 79 at 8000 feet.

Wednesday Night: Mostly cloudy with a chance of showers and slight chance of thunderstorms in the evening and then partly cloudy after midnight. Areas of smoke through the night. Chance of precipitation 40 percent. Lows 56 to 64 at 5000 feet and 50 to 58 at 8000 feet.

Thursday: Mostly cloudy. Areas of smoke through the day. Slight chance of thunderstorms in the afternoon. Highs 89 to 96 at 5000 feet and 71 to 79 at 8000 feet.

Thursday Night through Saturday Night: Partly cloudy with a slight chance of thunderstorms. Areas of smoke. Lows 56 to 64 at 5000 feet and 49 to 58 at 8000 feet. Highs 88 to 96 at 5000 feet and 71 to 80 at 8000 feet.

Sunday: Mostly cloudy. Areas of smoke through the day. Slight chance of thunderstorms in the afternoon. Highs 86 to 94 at 5000 feet and 70 to 78 at 8000 feet.

Sunday Night and Monday: Partly cloudy. Areas of smoke. Slight chance of thunderstorms. Lows 55 to 63 at 5000 feet and 49 to 57 at 8000 feet. Highs 86 to 94 at 5000 feet and 69 to 78 at 8000 feet.
Impacts - E19 Information
6.5 FeetRiver is closed to rafters and floatation.
9.0 FeetChapel Meadow (south side of river) and Cooks Meadow (north side of river) begins to experience overflow.
9.5 FeetPortion 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 FeetWestern 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.
10.5 FeetWater tops the swinging bridge downstream from Chapel Meadow. Overflow from Woski Pond floods access road (Northside Drive) leading out of the west entrance of the park.
11.5 FeetSewage pumping relay station at North Pines Campground becomes flooded.
12.5 FeetNorthside Drive and Southside Drive, which are the main roads in Yosemite Valley, become flooded and are closed to traffic.
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.

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.