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 2016 at 8:00 AM PDTNext Issuance: May 05 2016 at 9:00 AM PDT
Monitor Stage: N/A Flood Stage: 10.0 Feet
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.

Verification - Historical Graphical RVF
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Historical Stage/Flow Data
Water Year
Peak Discharge (cfs)
Stage (feet)
Date
 Most Recent 5 Years
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
2010
7,010
10.45
Jun 07, 2010
 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)
Tonight: Mostly cloudy. Slight chance of thunderstorms in the evening. A 50 percent chance of showers and a 50 percent chance of snow showers near the crest. Colder. Snow level above 8000 feet. Lows 38 to 48 at 5000 feet and 30 to 36 at 8000 feet.

Thursday: Chance of showers in the morning and then showers and Snow showers likely and slight chance of thunderstorms in the afternoon. Near the crest and chance of snow showers in the morning and then snow showers likely and slight chance of thunderstorms in the afternoon. Chance of precipitation 70 percent. Snow accumulation up to 4 inches. Snow level above 8000 feet. Highs 52 to 62 at 5000 feet and 41 to 51 at 8000 feet.

Thursday Night: Showers and snow showers likely and slight chance of thunderstorms and snow showers likely and slight chance of thunderstorms near the crest. Chance of precipitation 70 percent. Snow accumulation up to 4 inches. Snow level above 8000 feet. Lows 37 to 45 at 5000 feet and 27 to 33 at 8000 feet.

Friday: Snow showers and showers likely and slight chance of thunderstorms. Chance of precipitation 70 percent. Snow accumulation up to 6 inches. Total snow accumulation up to 14 inches. Snow level 7500 feet. Highs 48 to 56 at 5000 feet and 37 to 47 at 8000 feet.

Friday Night: Slight chance of thunderstorms in the evening. Cloudy with a chance of showers. Chance of precipitation 50 percent. Snow level 7500 feet. Lows 36 to 44 at 5000 feet and 27 to 33 at 8000 feet.

Saturday: Chance of showers. Chance of snow showers in the morning and then snow showers likely and slight chance of thunderstorms in the afternoon. Chance of precipitation 70 percent. Highs 50 to 60 at 5000 feet and 40 to 50 at 8000 feet.

Saturday Night: Slight chance of thunderstorms in the evening. Cloudy with a chance of showers. Chance of precipitation 50 percent. Lows 37 to 47 at 5000 feet and 30 to 36 at 8000 feet.

Sunday and Sunday Night: Mostly cloudy with a chance of showers and snow showers and slight chance of thunderstorms. Chance of precipitation 40 percent. Highs 56 to 64 at 5000 feet and 45 to 55 at 8000 feet. Lows 37 to 47 at 5000 feet and 30 to 38 at 8000 feet.

Monday: Mostly sunny with a slight chance of showers. Not as cool. Highs 63 to 72 at 5000 feet and 51 to 61 at 8000 feet.

Monday Night: Partly cloudy. Lows 40 to 50 at 5000 feet and 33 to 41 at 8000 feet.

Tuesday through Wednesday: Mostly clear. Highs 66 to 76 at 5000 feet and 53 to 63 at 8000 feet. Lows 41 to 51 at 5000 feet and 32 to 42 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.