Yosemite Stock Photographs, Prints and Video | Yosemite National Park Wednesday, April 25th, 2018

Yosemite National Park Wednesday, April 25th, 2018

April 25, 2018  •  Leave a Comment

Daily Report - Yosemite National Park

Wednesday, April 25th, 2018

 

Yosemite National Park Zone Forecast

 

Today: Sunny. Highs 72 to 78 at 5000 feet...62 to 70 at 8000 feet.

 

Tonight: Mostly clear. Lows 41 to 51 at 5000 feet...32 to 42 at 8000 feet.

 

Thursday:Mostly cloudy. A 50 percent chance of thunderstorms in the afternoon. Near the crest, a 50 percent chance of thunderstorms and snow showers in the afternoon. Highs 69 to 77 at 5000 feet...61 to 67 at 8000 feet.

 

Additional Point Forecast Weather Links:

Yosemite Valley  |  Wawona  |  Tuolumne Meadows  |  Glacier Point |  Big Oak Flat  |  Hetch Hetchy  |  El Portal  |  Mariposa | Badger Pass

 

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NEW AND HAPPENING TODAY

 

Employee Meeting

 

Please join us for an All Employee Meeting with Superintendent Mike Reynolds at 1:00 PM on Wednesday, April 25 at the El Portal Large Breakroom. (A. Kunz)

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Hooting Owl Lecture Series, Thursday, April 26

 

"Fire and Archeology in Yosemite National Park"

 

by Jun Kinoshita, Fire Archeologist

 

Come explore why the Fire and Aviation Management Branch of Yosemite National Park has an archeologist trained as a firefighter!  For the past seventeen years, Jun Kinoshita has worked closely with firefighters to document and protect the varied cultural resources of Yosemite National Park.

 

This month's Hooting Owl lecture will take place on Thursday, April 26, from 6:30 7:30 pm at the Wawona Community Center.  Doors open at 6:00. (J. Cox)

 

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Glacier Point Road in Yosemite National Park to Open on Saturday, April 28, 2018 

 

Yosemite National Park announces the Glacier Point Road will open to all vehicular traffic at 9:00 am on Saturday, April 28, 2018.

There will be limited visitor services available at Glacier Point. There is no projected opening date for the Glacier Point store or the Bridalveil Creek Campground.

The Four Mile Trail is open from Yosemite Valley to Glacier Point.

Visitors are encouraged to slow down and drive with caution along all park roads, as bears and other wildlife may be present on or near the roadway. Drivers should be aware of potential hazards in the road, including wet and icy conditions or debris in the roadway.

For updated 24-hour road and weather conditions for Yosemite National Park, please call 209-372-0200, press 1 and press 1 again.

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Bicycle Access On Glacier Point Road Thursday & Friday

Glacier Point Road has been cleared of snow and is near being ready to open. Prior to opening to vehicles, it will be open to bicycles only. For two days, Thursday, April 26th and Friday, April 27th, cyclists may park at Chinquapin and ride all sixteen miles of the Glacier Point Road. Cyclists need to stay in the correct lane of travel, be aware that there may be admin vehicles using the road, and watch for debris.   (C. Andrews)

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Southside Drive Delays Update 4/24

Drilling Operations at Pohono Bridge and Happy Isles Bridge will continue thru Friday, April 27th as part of a bridge preservation project in Yosemite Valley. There will be single lane traffic control with flaggers, so please use caution when traveling thru the construction zone. To help minimize the traffic impacts during the day, crews will be drilling the north abutment for Pohono Bridge on Thursday night between 10 PM and 6 AM. The following delays should be anticipated while traveling across these two bridges this week:

 

Monday thru Friday 6am to 5:30pm –  Traffic delays up to 15 minutes at Pohono and Happy Isles Bridges

 

Thursday Night 10pm to 6am - Traffic delays up to 15 minutes at Pohono Bridge  (M. Pieper)

 

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RECENT NEWS

 

Scheduled Power Outages In Wawona 

PG&E will be performing scheduled maintenance in the Wawona area. There will be 2 temporary short outages:

 

Tuesday April, 24th, 8:30am-9am

Thursday April 26th, 4pm-4:30pm

 

For more information contact Heather Gonzales, PG&E Outage Coordinator, at 726-5588.  (K. Bablitch)

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Yosemite Valley Flood Narrative

On April 7th, Yosemite Valley experienced the 8th largest flood recorded at Pohono Bridge since 1917, the largest flood in 21 years. The Merced River peaked at Pohono Bridge at 6:15pm at 13.73 feet, flowing at 12,200 cubic feet per second (cfs). Upstream at the gage at Happy Isles, the Merced River peaked at 3:45pm at 10.09 feet, flowing at 8,000 cfs, which was the 6th largest on record at this gage since 1916. During the river’s peak, more than 60% of the river’s flow entered Yosemite Valley at Happy Isles, with the rest coming mainly from the numerous tributaries flowing into the valley. At Pohono Bridge, flood conditions occurred for nearly 30 hours, rising above 10 feet on April 7 at 08:00am and dropping below 10 feet on April 8 at 1:45pm. Floodwater inundated roads at numerous places, water depths ranged 2 - 4 feet at Chapel Meadow, Wosky Pond, Sentinel Cross, and El Cap Cross. 

 

The flood resulted from an unusual Spring atmospheric river of warm precipitation falling on a saturated snowpack and saturated soils. With the snowline higher than 12,000 feet, most of the precipitation falling in the Tuolumne and Merced River watersheds fell as rain. This combination of preexisting conditions and high snowline led to rapid runoff from most of the watershed area, generating flooding with only 2 – 4 inches of precipitation. This scenario differs from typical winter storms when the snowline is lower and a much smaller area of the watershed is contributing runoff. 

Interestingly, during rain-through-snow events it is generally thought that rain contributes most of the runoff, while smaller amounts of runoff are contributed by melted snow. However, during this storm, snow sensors in Yosemite measured larger amounts of snowmelt, in some places possibly doubling the amount of runoff. The amount of rain during the event ranged 2 – 4 inches, while snowmelt ranged 0.7 – 4.3 inches of liquid water.  During the afternoon of April 7, winter rangers in Tuolumne Meadows observed the Tuolumne River melting out rapidly, which was last observed during the historic flood of 1997. We are still investigating why such a large amount of snowmelt occurred.  (H. Forrester)

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Room(s) for Rent

Rooms for rent in a beautiful, large 4+ bed/2.5 bath home, nestled in the hills off the 140, near the border of Mariposa and Midpines. Home is on 5 quiet acres, surrounded by great views which you can see from bedroom windows. $550/month per room, plus a portion of utilities. Email synchronicity.support@gmail.com if you're interested.  (K. Indigo)

 

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CONSTRUCTION & TRAFFIC DELAYS

 

YARTS Schedule Affected by Construction April 23-25

Construction on El Portal Road and Northside Drive will impact YARTS service this week. Due to the closure of Northside Drive, YARTS buses will not stop at the Visitor Center and (The) Majestic Yosemite Hotel. All visitors and employees must use stops at Half Dome Village and Yosemite Valley Lodge. Specific adjustments to arrival and departure times are subject to delays caused by construction and traffic congestion.  (J. Donovan)

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Yosemite Valley Road Work

Final paving on Northside Drive between Bank 3-Way (Sentinel Dr.) and Camp 4 is planned for Monday April 23rd through Wednesday April 25th. The road segment will close and there will be temporary 2-way detours on Northside and Southside Drives. Shuttle bus routes from Yosemite Lodge will evolve throughout the 3 days. On Monday, shuttle buses will not be able to run east from the Yosemite Valley Lodge to Yosemite Village (instead they will head west to Pohono Bridge and circle back on Southside Drive). There may be short windows on Tuesday and Wednesday when shuttle buses may be able to travel east from the lodge. The next week, April 26th through April 30th, there will be two-way traffic through the area with short delays to finalize utility access points.

 

Contractors will pave the Yosemite Falls Parking area from April 26th through May 4th. Contractors will pave the Camp 4 Parking area May 7th and 8th.

 

Visitors may park at the Yosemite Falls and Yosemite Village parking lots. In addition, parking at Camp 4 and Yosemite Falls Parking areas will open in selected parking bays this Friday at the close of the work day through Wednesday, May 2nd. This parking is for day use only with the exception of Camp 4 campers.  (L. Acree)

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Caltrans Construction Update For SR 49 and Surrounding Area

Caltrans advises that damage to State Routes (SR) 49 and 132, sustained after heavy rains on March 22nd, resulted in long term closures. SR 49 is closed for 36 miles between SR 120 and Bear Valley Road. SR 132 is closed for one half mile between Granite Springs and Piney Creek Roads. Completion dates are unknown at this time. Additionally, a Caltrans contractor has begun repaving 34 miles of SR 108 and SR 120 in Tuolumne County. Work began on April 2nd and is expected to continue into October. Motorists can expect lane closures and one-way traffic control, with flaggers and 10-minute delays.  (J. Donovan)

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Northside Drive Traffic Pilot Beginning April 13th

Beginning late Friday morning, April 13th, Northside Drive will be reconfigured as a one-way two lane road at the Lower Falls intersection for westbound traffic. Traffic from Camp 4 and the Yosemite Falls Parking area will use Lodge Drive to head back to the Lower Falls intersection. There a right turn heads east on Northside Drive toward Yosemite Village. As a reminder, Lodge Drive is signed with a speed limit of 15 MPH. The goal of this pilot is to improve pedestrian safety and the overall efficiency of the Lower Falls intersection.  (J. Hoeflich)

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El Portal Road Delays Update 3/28

Crews have re-mobilized to finish working on the storm damage repairs from last year.  Delays will continue up to Memorial Day weekend. Crews will be working on the El Portal Road between the western Park boundary (Yosemite View Lodge) and the Big Oak Flat Intersection. There will be single lane traffic control with flaggers and pilot car operations, so please use caution when traveling thru the construction zone. This work is scheduled to be completed by Memorial Day weekend. The following delays should be anticipated while traveling the El Portal Road between the western park boundary and the Big Oak Flat Intersection:

 

Monday thru Friday

6am to 8am –  Traffic delays up to 15 minutes

8am to 3:30pm -- Traffic delays up to 30 minutes

3:30pm to 5:30pm -- Traffic delays up to 15 minutes  (M. Pieper)

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Museum/District Building Electrical Rehab Project

This project will rehabilitate the electrical system in the Museum/District Building by installing grounding in the existing electrical circuits. The Contractor mobilized on Monday, December 18th and the project is expected to run for 6 months. The 8 parking stalls to the west of the building between the sidewalk on the south and the south end of the fence to the north will become the Contractor's staging areas.  (K. White)

 

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ACTING DESIGNATIONS

 

Utilities Branch Chief until further notice

Rick Hall: 379-1077 or rick_hall@nps.gov

 

Physical Science & Landscape Ecology Branch Chief until further notice 

Kent van Wagtendonk: 379-1046

 

Wilderness Patrol Supervisor until August 8

Lisa Kahn: 372-0354

 

Park Botanist until further notice

Garrett Dickman: 379-3282

 

Chief Curator until June 9

Paul Rogers: 379-1282 


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