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| MERCED RIVER - YOSEMITE AT POHONO BRIDGE (POHC1) | ||||||||||||||||||
| Latitude: 37.72º N | Longitude: 119.67º W | Elevation: 3862 Feet | ||||||||||||||||
| Location: Mariposa County in CA | ||||||||||||||||||
| River Group: San Joaquin | ||||||||||||||||||
| Issuance Time: | May 09 2025 at 9:11 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. |
| Monthly Probability Plot |
| Monthly Streamflow Volume (1000s of Acre-Feet) Data Updated: May 09 2025 at 9:14 AM PDT | ||||||
| Prob | May* | Jun | Jul | Aug | Sep | Oct |
| 10% | 163.5 | 78.8 | 30.3 | 7.4 | 3.9 | 11.9 |
| 25% | 157.1 | 70.1 | 24.1 | 6.5 | 3.3 | 4.7 |
| 50% | 150.8 | 63.0 | 19.9 | 5.7 | 2.9 | 2.6 |
| 75% | 146.8 | 57.7 | 17.3 | 5.4 | 2.7 | 2.1 |
| 90% | 144.2 | 53.8 | 15.7 | 5.2 | 2.7 | 1.9 |
| Mean | 145.6 | 111.2 | 44.1 | 10.0 | 3.9 | 5.1 |
| %Mean | 103.6 | 56.7 | 45.1 | 57.0 | 74.4 | 51.0 |
| Prob | Nov | Dec | Jan | Feb | Mar | Apr |
| 10% | 16.9 | 22.4 | 33.1 | 34.2 | 77.2 | 110.8 |
| 25% | 8.9 | 9.0 | 14.1 | 19.7 | 44.9 | 102.9 |
| 50% | 4.4 | 6.1 | 9.4 | 12.6 | 33.3 | 81.8 |
| 75% | 3.0 | 3.8 | 4.9 | 8.5 | 25.9 | 58.1 |
| 90% | 2.3 | 2.9 | 3.5 | 5.8 | 18.6 | 51.0 |
| Mean | 7.4 | 10.4 | 17.8 | 18.8 | 35.8 | 82.2 |
| %Mean | 59.5 | 58.7 | 52.8 | 67.0 | 93.0 | 99.5 |
| Note 1: %Mean is the "Median forecast monthly value (50%)" divided by the "monthly mean" (displayed as a %) | ||||||
| Note 2: For current month, graphic represents remaining forecast only, text represents observed + remaining forecast. | ||||||
| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ324) |
| Today: Warmer, sunny. Highs 72 to 84. Southeast winds up to 5 mph shifting to the southwest in the afternoon. Tonight: Mostly clear. Lows 54 to 62. Northeast winds up to 5 mph. Saturday: Sunny. Highs 74 to 84. East winds up to 5 mph increasing to southwest 10 to 15 mph in the afternoon. Saturday Night: Mostly clear. Lows 52 to 58. Southwest winds 5 to 10 mph with gusts to around 25 mph shifting to the southeast after midnight. Sunday: Sunny. Highs 64 to 74. South winds up to 10 mph increasing to southwest 10 to 20 mph in the afternoon. Sunday Night and Monday: Cooler. Mostly clear. Lows in the mid 40s. Highs 52 to 64. Monday Night: Colder. Mostly cloudy. Chance of rain in the evening, then chance of rain and snow after midnight. Lows 34 to 40. Chance of precipitation 50 percent. Tuesday: Partly sunny. Chance of rain showers in the afternoon. Highs 44 to 54. Chance of showers 50 percent. Tuesday Night: Mostly cloudy in the evening then clearing. Lows 33 to 39. Wednesday: Not as cool. Sunny. Highs 54 to 64. Wednesday Night: Partly cloudy. Lows 39 to 45. Thursday: Sunny. Highs 59 to 69. |
| Flood Impacts | |
| 23.45 Feet | Flood of record...1/3/97. $178 million damage to Yosemite Valley. |
| 13.6 Feet | Lift stations at Housekeeping Camp and Yosemite Creek flooded. Southside Drive at Chapel Meadow impassable. |
| 12.5 Feet | Northside Drive at Wosky Pond, El Capitan crossover, and Sentinel crossover are impassable to vehicles. |
| 12.0 Feet | Water on road at Northside Drive, Southside Drive, El Capitan crossover, Sentinel crossover, and Highway 140 near Cookie Cliff. |
| 11.4 Feet | Water begins to overtop road curbs on Northside Drive. Swinging Bridge overtops. |
| 10.0 Feet | Merced River at Pohono Bridge begins to rise out of its banks. Flood Stage. |
| 9.5 Feet | Lower Pines and Housekeeping Camp begin flooding. |
| 7.0 Feet | RIVER IS CLOSED TO RAFTERS AND FLOATATION DEVICES. |