7 Day. Patchy fog in the morning. Saturday Night. 30 years of hourly historical weather data for Hetch Hetchy Reservoir can be purchased with history+. Located at 3,900 feet, Hetch Hetchy boasts one of the longest hiking seasons in the park and is an ideal place for thundering spring waterfalls and wildflower displays. From the turn-off, the road winds for 16.5 miles up the old Hetch Hetchy railroad grade (26.5 km) to the Hetch Hetchy Reservoir, passing many lonely trails along the wa… The cliffs of the Hetch Hetchy frame a 12 km long reservoir held by O’Shaughnessy Dam. Highs 48 to 55. The Hetch Hetchy water system includes other reservoirs, and the one in Hetch Hetchy Valley stores only about a quarter of the water San Francisco gets from the Tuolumne River. Chance of precipitation 50 percent. Partly sunny, with a high near 66. Colder. Breezy. afternoon. The Dam is really impressive. Cycling Yosemite Valley - Hetch Hetchy Dam. Slight chance of snow in the Morning, then chance of snow and slight chance of rain in the afternoon. 27 to 33 at 8000 feet. Hetch Hetchy, Wapama Fall View Photos Yosemite National Park, CA – Details are still being investigated over the circumstances that led to the sudden death of a Hetch Hetchy … Partly cloudy. East wind 5 to 10 mph becoming southwest in the afternoon. View route map, weather, streetviews, images, slideshows, videos and more for this cycling route to the top of Hetch Hetchy Dam Climb, CA, USA. End the Hetch Hetchy dream Re “Restore Hetch Hetchy during second century of the Park Service” (Viewpoints, Aug. 21): There he goes again. Northwest winds 10 to Highs 41 to 47 at 5000 feet. With first light and last light times, and a graphical view of local daylight hours Mostly cloudy. Our flagship blog features analysis of news from our staff and announcements of upcoming events. Mostly cloudy, with a low around 38. … Saturday... Mostly cloudy. The Hetch Hetchy Valley, in the northwest area of Yosemite was one of John Muir's favorite spots. The Merced Grove, at 6,000 feet (1,800 meters), is pleasant all summer long, and Carlon Falls becomes a popular swimming hole after summer arrives. Get the monthly weather forecast for Hetch Hetchy Junction, CA, including daily high/low, historical averages, to help you plan ahead. Lows 32 to 40 at 5000 feet. Wed 7 Oct Central Sierra. Tuesday... Mostly cloudy. Highs 63 to 73 at 5000 feet 54 to 64 at 8000 feet. Sunrise / Sunset times Hetch Hetchy Reservoir. There is a weather forecast for every taste. 62 to 70 at 8000 feet. I did an overnight backpacking trip to Hetch Hetchy in late May. 34 to 39. High temperatures prevail in summer months, but that is a small price to pay for the reward of vast wilderness filled with stunning peaks, hidden canyons, and remote lakes. Detailed wind speed and wind direction information as well as interactive graphs for winds Highs 48 to 55. 29 to 37 at 8000 feet. Southeast winds up to 10 mph in the chance of rain. Hetch Hetchy water travels 160 miles via gravity from Yosemite to the San Francisco Bay Area. Find local weather forecasts for Jamestown, United States throughout the world To get to Hetch Hetchy, turn north off Highway 120 onto Evergreen Road about 1 mile (2.2 km) outside the Big Oak Flat Entrance gate, and 12.5 miles (20 km) east of the small community of Buck Meadows. Wednesday... Mostly cloudy. Southwest Winds 25 to 30 Mph with Gusts to around 60 Mph over higher Elevations. 1 of 8 TRACY, CA--- Hetch Hetchy water is treated with UV light in these large pipes at the new state-of -the-art Tesla Water Treatment Facility. Get the forecast for today, tonight & tomorrow's weather for Hetch Hetchy Junction, CA. As a result, San Francisco secured a reliable and pure water source (and an important source of hydroelectric power), despite the objections of environmentalists led by John Muir and the Sierra Club. 15 to 25 at 8000 feet. Chance of rain in the Morning, then slight chance of rain in the afternoon. Lows 44 to 49. 41 to 51 at 8000 feet. It's a perfect place for hiking with the longest hiking season in the area. Weather models comparison for Hetch Hetchy Reservoir. Partly cloudy. Highs Lows 30 to 40 at 5000 feet. 2020. 14 Day. Sunday Night... Cloudy with a 50% chance of rain. Lows 33 to 38. midnight. 22 to 28 at 8000 feet. Saturday. 10 to 18 at 8000 feet. Snow level 5300 feet rising to 6400 feet in the afternoon. The water project's Mocassin power … Breezy. Wed 7 Oct Central Sierra. 39 to 44. Barcroft Weather Station; Support Us; Hetch Hetchy gushes over wetlands. 15 mph. A 50 percent chance of snow and rain. Friday Night. The legend next to the diagram has a list with the model names and the corresponding colours. Over higher Elevations, southwest Winds around 25 Mph with Gusts to around 45 Mph in the morning. Dams are controversial among environmentalists, providing water and clean energy—but destroying and fragmenting habitat. Tonight... Mostly cloudy. The views of the lake are really amazing. A 50 percent chance of rain. A 20% chance of rain after Highs 57 to 62. Sunny. Chance of snow 70 percent. Mostly cloudy. Every model is assigned one colour that is used in all diagrams. Today... Mostly sunny. … 47 to 52. Slight chance of rain in the afternoon. Take CA Highway 120 from the park toward Groveland. 37 to 47 at 8000 feet. Near the Crest, slight chance of snow in the Evening, then chance of snow after midnight. Hetch Hetchy Reservoir ca weather copyright © When the O'Shaughnessy Dam was built on the Tuolumne River in the 1920's, the valley was flooded. Detailed Day & Night Hetch Hetchy Reservoir, CA Weather Forecast Hetch Hetchy Reservoir, CA Weather Forecast Dated: 100 PM PST Mon Dec 14 2020 The area/counties/county of: Fresno. Lows Hetch Hetchy water has a filtration avoidance permit due to its naturally pristine condition so disinfection is the only treatment it receives prior to distribution. Snow level 6000 feet. Hetch Hetchy Junction, CA Weather. Snow level 6500 feet. I got rained on the first evening, but on day 2 the weather was beautiful. The time from sunrise to sunset is indicated in light yellow. Wednesday Night... Mostly cloudy with a slight Mostly cloudy in the evening then clearing. Mostly cloudy. Light winds. 22 to 30 at 8000 feet. Overview. From the main road, it's about a 20- to 25-minute drive to the parking area. The remaining 15 percent of water comes from runoff in the Alameda and Peninsula watersheds. Our blog. 28 to 36 at 8000 feet. Partly sunny, with a high near 55. Monday... Mostly cloudy with a 50% chance of rain. Mostly cloudy with a slight chance of snow. Temperature map. It was far less crowded than Yosemite Valley. Lows 38 to 43. All the info (difficulty, distance, altitude gained, elevation, average grade) you'll need to climb Hetch Hetchy Dam Climb by bike. The Hetch Hetchy wat… Highs 40 to 46 at 5000 feet. South Winds 25 to 30 Mph with Gusts to around 60 Mph over higher Elevations. Highs 72 to 80 at 5000 feet. Highs 41 to 49 at 5000 feet 31 to 39 at 8000 feet. Snow level 4000 feet. 25.3mph (35.7mph Gusts), Kerrville, Kerrville Municipal Airport/Louis Schreiner Field, TX. Highs 52 to 57. This created the Hetch Hetchy Reservoir which is eight miles … evening shifting to the north after midnight. Lows 25 to 33 at 5000 feet. Light winds in the morning becoming southeast up to 10 mph in the Windy. 31 to 39 at 8000 feet. 24 to 30 at 8000 feet. Mostly cloudy. See our library. Lows 16 to 24 at 8000 feet. Download variables like temperature, wind, clouds and precipitation as CSV for any place on Earth. View the latest weather forecasts, maps, news and alerts on Yahoo Weather. Chance of snow 70 percent. A 30 percent chance of showers, mainly after 11am. A 40 percent chance of showers, mainly before 11pm. Snow likely in the Morning, then chance of snow in the afternoon. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend! Hetch Hetchy in Yosemite, which supplies water to San Francisco, is among the concerns of the San Francisco Public Utilities Commission, which is undergoing a change of leadership. If you don't already know WX is the abbreviation for weather. Highs 41 to 49 at 5000 feet. Hourly. Partly cloudy. Highs 33 to 38 at 5000 feet. Jenner Fox: Hooray for Hetch Hetchy See our library that includes videos, music, and books inspired by the story of the Hetch Hetchy Valley. Hetch Hetchy—which conservationist John Muir called a “wonderfully exact counterpart” to Yosemite Valley—is, like its neighbor to the south, graced by sheer granite walls and multiple gushing cataracts. Highs 59 to 64. Lows 26 to 35 at 5000 feet. 11:00 PM Clear 42° Feels like 40° Last Quarter. At under 4,000 feet (1,200 meters) in elevation, Hetch Hetchy is the lowest part of Yosemite, and consequently probably best for winter and spring visits, before the weather gets too hot. Hetch Hetchy Reservoir rain forecast information. Clear skies. Lows 50 to 60 at 5000 feet. Gusts up to 40 Mph in the afternoon. Mostly cloudy. Lows A different story is unfolding at Hetch Hetchy reservoir in Yosemite National Park, where water is being released to conserve and restore wildlife. Although Hetch Hetchy is included within the boundaries of Yosemite National Park, the entrance is separate from the rest of the park. Helpful Tip: Abbreviated, 7 Day, 14 Day Forecasts. Slight chance of rain and snow in the Evening, then chance of snow and rain after midnight. Chance of snow in the Evening, then snow likely after midnight. The first diagram shows the predicted temperatures for each model. Thu 8 Oct Central Sierra. But Hetch Hetchy’s greatest charm may be what it lacks: gift shops, snack stands, and crowds. A 50 percent chance of snow. Snow level 6300 feet. Sunday... Mostly cloudy. This local water is captured in reservoirs located in San Mateo and Alameda counties. Highs 37 to 43 at 5000 feet. Lows 47 to 57 at 5000 feet. Colder. 34 to 39. A 50% chance of rain in the The last 2 weeks of past weather data for Hetch Hetchy Reservoir are available for free evaluation here. Hetch Hetchy Reservoir is a reservoir in Yosemite National Park, formed by the O'Shaughnessy Dam in Hetch Hetchy Valley. To reach Hetch Hetchy, you have to exit Yosemite National Park and re-enter it. Highs 48 to 54 at 5000 feet. afternoon. Weather Radar. This area was once flooded to create a water supply for San Francisco. Chance of precipitation 50 percent. Lows 37 to 42. Here you can get away from the crowds and relax in the surrounding beauty, take some marvelous hikes and enjoy the waterfalls along the way. Slight chance of snow. Snow level 9800 feet lowering to 8800 feet after midnight . Highs 53 to 58. The Hetch Hetchy Valley underwent a monumental transformation when the City Of San Francisco received the approval of Congress in 1913 to build a dam in the Hetch Hetchy Valley, thus storing the water of the Tuolumne River and flooding the valley to a height of over 350 feet. Hetch Hetchy Reservoir in Yosemite National Park provides San Francisco with power and its drinking water. Mostly cloudy. Illuminated: 81.7% All day. Lows 25 to 34 at 5000 feet. The half-hour drive to Hetch Hetchy from CA Highway 120 begins outside the park boundaries. Saturday Night... Mostly cloudy. 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