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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: Oct 31 2014 at 7:52 AM PDTNext Issuance: Nov 01 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
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ096)
Today: Snow showers and showers and slight chance of thunderstorms in the morning and then snow showers likely with possible showers and thunderstorms in the afternoon. Near the crest and snow showers and slight chance of thunderstorms in the morning and then snow showers likely and slight chance of thunderstorms in the afternoon. Over higher elevations and gusts up to 40 mph in the morning. Chance of precipitation 80 percent. Breezy and colder. Snow accumulation up to 4 inches. Total snow accumulation up to 12 inches. Snow level 6000 feet. Highs 45 to 53 at 5000 feet and 34 to 40 at 8000 feet. West winds around 25 mph over higher elevations.

Tonight: Mostly cloudy. A 20 percent chance of showers. Near the crest and chance of snow showers in the evening and then slight chance of snow showers after midnight. Colder. Snow level 5500 feet. Lows 26 to 36 at 5000 feet and 18 to 26 at 8000 feet.

Sunday: Mostly sunny. Near the crest and slight chance of snow showers in the morning. Little or no snow accumulation. Highs 50 to 58 at 5000 feet and 39 to 45 at 8000 feet.

Sunday Night: Mostly clear. Lows 28 to 38 at 5000 feet and 21 to 29 at 8000 feet.

Monday: Sunny. Highs 54 to 61 at 5000 feet and 44 to 50 at 8000 feet.

Monday Night and Tuesday: Mostly clear. Lows 35 to 43 at 5000 feet and 28 to 36 at 8000 feet. Highs 56 to 66 at 5000 feet and 46 to 56 at 8000 feet.

Tuesday Night through Friday: Mostly clear. Breezy. Lows 42 to 52 at 5000 feet and 35 to 45 at 8000 feet. Highs 64 to 74 at 5000 feet and 52 to 62 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.