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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: | May 11 2025 at 8:49 AM PDT |
| Please Note: | Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty. Flow data on this product are unregulated / full natural flow. |
| 2025 Water Year Trend Plot |
| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ324) |
| Today: Sunny until late afternoon then becoming partly sunny. A 20 percent chance of rain late in the afternoon. Highs 51 to 63. Southwest winds 5 to 15 mph increasing to 15 to 20 mph in the afternoon. Tonight: Colder. Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the upper 30s. West winds up to 10 mph. Tuesday: Partly sunny. Chance of rain showers in the afternoon. Highs 45 to 55. Southwest winds up to 10 mph. Chance of showers 40 percent. Tuesday Night: Partly cloudy in the evening then clearing. Lows 35 to 41. Northwest winds 5 to 10 mph shifting to the northeast after midnight. Wednesday: Warmer, sunny. Highs 56 to 66. Northeast winds up to 5 mph shifting to the west in the afternoon. Wednesday Night and Thursday: Mostly clear. Lows 42 to 48. Highs 62 to 74. Thursday Night: Partly cloudy. Lows 47 to 53. Friday: Partly sunny. Highs 63 to 73. Friday Night through Saturday Night: Partly cloudy. Lows 43 to 53. Highs 61 to 71. Sunday: Sunny. Highs 63 to 73. |
| Flood Impacts | |
| 13.27 Feet | Flood of Record: 1/2/97. $178 million in damage to Yosemite Valley. |
| 10.0 Feet | Northside Drive at Wosky Pond, Southside Drive at Chapel Meadow, El Capitan crossover, and Sentinel crossover are impassable to vehicles. |
| 8.2 Feet | Swinging Bridge overtops. Water on road at Northside Drive, Southsie Drive, El Capitan crossover, and Sentinel crossover. |
| 7.5 Feet | Flood Stage. Housekeeping camp and Yosemite Valley backpacker campground begin to flood. |
| 7.0 Feet | North Pines and Lower Pines campgrounds begin flooding. |