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 NP AT POHONO BRIDGE (POHC1)
Latitude: 37.72º NLongitude: 119.67º WElevation: 3862 Feet
Location: Mariposa County in CaliforniaBulletin Group: San JoaquinRiver Group: San Joaquin
Issuance Time: May 31 2023 at 8:46 AM PDTNext Issuance: Jun 01 2023 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
2022
4,810
8.55
Oct 25 2021
2021
2,160
5.92
May 6, 2021
2020
3,560
7.41
Apr 30, 2020
2019
6,770
10.13
Jun 6, 2019
2018
12,100
13.68
Apr 7, 2018
 Historical High Stage/Flow Events (Period of Record - Oct 1916 to Present) - Ranked by Flow
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
Impacts - E19 Information
7.0 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".
12.5 FeetNorthside Drive and Southside Drive, which are the major 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.
Official 7 Day National Weather Service Forecast   (CAZ324)
Tonight: Mostly clear. Slight chance of thunderstorms early in the evening, then slight chance of rain late in the evening. Lows 46 to 52. West winds up to 5 mph shifting to the east after midnight. Chance of precipitation 20 percent.

Thursday: Sunny with a 20 percent chance of thunderstorms. Highs 65 to 75. Southwest winds up to 10 mph.

Thursday Night: Mostly clear. Lows 43 to 51. West winds up to 10 mph shifting to the northeast after midnight.

Friday: Sunny. Highs 67 to 77. East winds up to 5 mph shifting to the west in the afternoon.

Friday Night: Mostly clear. Lows 48 to 56. West winds 5 to 10 mph shifting to the northeast after midnight.

Saturday: Sunny. Highs 72 to 82.

Saturday Night: Partly cloudy. Lows 50 to 58.

Sunday: Sunny in the morning, then partly sunny with chance of rain showers in the afternoon. Highs 72 to 82. Chance of showers 30 percent.

Sunday Night: Mostly cloudy in the evening then becoming partly cloudy. Lows 52 to 58.

Monday: Mostly sunny. Chance of rain showers in the afternoon. Highs 70 to 80. Chance of showers 40 percent.

Monday Night: Mostly cloudy. Chance of rain showers in the evening. Lows 49 to 55. Chance of showers 30 percent.

Tuesday: Partly sunny. Chance of rain showers in the afternoon. Highs 63 to 73. Chance of showers 50 percent.

Tuesday Night: Mostly cloudy. Chance of rain showers in the evening. Lows 47 to 53. Chance of showers 30 percent.

Wednesday: Partly sunny. Chance of rain showers in the afternoon. Highs 63 to 73. Chance of showers 40 percent.
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.