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MERCED RIVER - HAPPY ISLES (HPIC1)
Latitude:
37.73º N
Longitude:
119.56º W
Elevation:
4017 Feet
Location: Mariposa County in CA
River Group: San Joaquin
Issuance Time: Feb 14 2026 at 9:08 AM PST
Please Note:Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.

!!! Selected Ensemble Product NOT Available for this Location !!!


Location Photographs

ESRI™ Locator Map

Flood Impacts
13.27 FeetFlood of Record: 1/2/97. $178 million in damage to Yosemite Valley.
10.0 FeetNorthside Drive at Wosky Pond, Southside Drive at Chapel Meadow, El Capitan crossover, and Sentinel crossover are impassable to vehicles.
8.2 FeetSwinging Bridge overtops. Water on road at Northside Drive, Southsie Drive, El Capitan crossover, and Sentinel crossover.
7.5 FeetFlood Stage. Housekeeping camp and Yosemite Valley backpacker campground begin to flood.
7.0 FeetNorth Pines and Lower Pines campgrounds begin flooding.