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: May 04 2015 at 8:06 AM PDTNext Issuance: May 05 2015 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: Mostly cloudy. Near the crest and slight chance of snow showers in the morning and then chance of thunderstorms and snow showers in the afternoon. A 20 percent chance of thunderstorms in the afternoon. Highs 64 to 74 at 5000 feet and 48 to 58 at 8000 feet.

Tonight: Partly cloudy. Near the crest and chance of thunderstorms and snow showers in the evening and then slight chance of showers after midnight and chance of precipitation 40 percent. Snow level above 8000 feet. Lows 39 to 47 at 5000 feet and 28 to 36 at 8000 feet.

Wednesday: Mostly cloudy. Near the crest and slight chance of snow showers in the morning and then slight chance of thunderstorms and snow showers in the afternoon. Slight chance of thunderstorms in the afternoon. Highs 59 to 69 at 5000 feet and 44 to 54 at 8000 feet.

Wednesday Night: Partly cloudy. Slight chance of thunderstorms and snow showers in the evening and then chance of snow showers and slight chance of showers after midnight. Chance of precipitation 50 percent. Snow level 7500 feet. Lows 37 to 44 at 5000 feet and 24 to 32 at 8000 feet.

Thursday: Cloudy. Chance of snow showers in the morning and then chance of thunderstorms and snow showers in the afternoon. Chance of precipitation 50 percent. Snow level 6000 feet. Highs 50 to 60 at 5000 feet and 33 to 43 at 8000 feet.

Thursday Night: Cloudy with a 50 percent chance of thunderstorms and snow showers. Lows 37 to 43 at 5000 feet and 24 to 31 at 8000 feet.

Friday and Friday Night: Mostly cloudy with a 50 percent chance of thunderstorms and snow showers. Highs 53 to 63 at 5000 feet and 37 to 47 at 8000 feet. Lows 35 to 45 at 5000 feet and 23 to 33 at 8000 feet.

Saturday: Mostly cloudy. Slight chance of showers in the morning and then slight chance of thunderstorms and snow showers in the afternoon. Not as cool. Highs 60 to 70 at 5000 feet and 43 to 53 at 8000 feet.

Saturday Night: Mostly cloudy with a slight chance of thunderstorms and snow showers in the evening and then partly cloudy after midnight. Lows 38 to 48 at 5000 feet and 28 to 36 at 8000 feet.

Sunday: Mostly sunny. Highs 65 to 75 at 5000 feet and 48 to 58 at 8000 feet.

Sunday Night: Mostly clear. Lows 40 to 50 at 5000 feet and 29 to 39 at 8000 feet.

Monday: Mostly sunny. Highs 65 to 75 at 5000 feet and 48 to 58 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.