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 26 2018 at 8:20 AM PDTNext Issuance: May 27 2018 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
2016
4,080
7.90
May 14, 2016
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
 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 in the evening then becoming partly cloudy. Mostly cloudy with a chance of showers and slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Near the crest, chance of snow showers, showers and slight chance of thunderstorms in the evening, then slight chance of showers after midnight. Chance of precipitation 40 percent. Snow level above 8000 feet. Lows 38 to 48 at 5000 feet and 31 to 37 at 8000 feet.

Sunday: Mostly cloudy. A 20 percent chance of thunderstorms in the afternoon. Near the crest, a 20 percent chance of thunderstorms and snow showers in the afternoon. Not as cool. Highs 63 to 71 at 5000 feet and 54 to 62 at 8000 feet.

Sunday Night: Partly cloudy. Slight chance of thunderstorms in the evening. Near the crest, slight chance of thunderstorms and snow showers in the evening. Lows 42 to 52 at 5000 feet and 32 to 42 at 8000 feet.

Memorial Day: Sunny, warmer. Highs 71 to 79 at 5000 feet and 60 to 68 at 8000 feet.

Monday Night: Mostly clear. Lows 46 to 56 at 5000 feet and 36 to 46 at 8000 feet.

Tuesday: Sunny. Slight chance of thunderstorms in the afternoon. Highs 73 to 82 at 5000 feet and 63 to 71 at 8000 feet.

Tuesday Night and Wednesday: Partly cloudy. Slight chance of thunderstorms. Lows 47 to 57 at 5000 feet and 37 to 47 at 8000 feet. Highs 69 to 79 at 5000 feet and 59 to 69 at 8000 feet.

Wednesday Night: Partly cloudy. Slight chance of thunderstorms in the evening. Colder. Lows 39 to 49 at 5000 feet and 32 to 40 at 8000 feet.

Thursday: Mostly sunny. Slight chance of thunderstorms and snow showers in the afternoon. Highs 59 to 65 at 5000 feet and 51 to 57 at 8000 feet.

Thursday Night: Mostly clear. Slight chance of thunderstorms and snow showers in the evening. Lows 37 to 47 at 5000 feet and 30 to 38 at 8000 feet.

Friday through Saturday: Mostly clear. Highs 63 to 72 at 5000 feet and 54 to 62 at 8000 feet. Lows 39 to 49 at 5000 feet and 31 to 41 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.
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.