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Yosemite National Park -- Wednesday, May 5, 2021

Yosemite National Park
Wednesday, May 5, 2021

Yosemite National Park Zone Forecast
Today: Sunny. Highs 73 to 81 at 5000 feet...59 to 69 at 8000 feet.
Tonight: Clear. Lows 51 to 61 at 5000 feet...39 to 49 at 8000 feet.
Tomorrow: Sunny. Highs 70 to 77 at 5000 feet...56 to 66 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



Free COVID-19 Testing
Testing is available in Yosemite Valley on Mondays from 10:00 am to 6:00 pm (closed 2:00-3:00 pm for lunch). The testing site is located at the Yosemite Valley Emergency Services Complex (9034 Lost Arrow Rd).

Testing is available in El Portal on Wednesdays from 10:00 am to 6:00 pm (closed 2:00-3:00 pm for lunch). The testing site is located at the El Portal Community Center.

The park's testing provider is OptumServe/LHI. Testing is available for people of all ages, including children 3 and up with their parents/guardians present, as long as the children can tolerate the test. Registering in advance is strongly advised, though space for some walk ins may be available. It is easy to sign up online or by phone.

There are 100 appointments available each testing day. Register online for your OptumServe test here: It will take several minutes to complete your initial registration. You can also register by calling 888-634-1123.

OptumServe testing also remains available in Mariposa from 7:00 am to 3:00 pm (closed 11:30 - 1:00 for lunch) break) Tuesdays through Saturdays. Testing is also available in Groveland.

It continues to be recommended for anyone working in close contact with high volumes of the public to continue to get tested frequently. For those who have been fully vaccinated, it is recommended to get tested between every two weeks to at least once a month. For those who have not yet been fully vaccinated, or for those who work in healthcare/EMT or other close-contact positions, it is recommended to get tested every 7-14 days.

If you have been traveling out of your home area or have been exposed to someone who has tested positive for COVID-19, it is recommended to get tested within 4-6 days of returning from travel or from the date of the COVID-19 exposure. (J. Richards)

May 1 Snow Survey Results
Park staff have completed the May 1 snow surveys. Water content for the Tuolumne drainage is at 25% of average, and at 31% of average for the Merced drainage. (M. Fincher)

Mariposa Grove Open
The Mariposa Grove is open once again. Please note the following:
- There will be no Shuttle Bus operation this season.
- Visitors may park their cars at the Mariposa Grove Welcome Plaza and then hike/walk up either the Washburn Trail or the Grove Road, 2 miles one way with a 500 ' elevation gain to the Lower Grove Arrival area. Yosemite Conservancy will be operating the Depot beginning May 14th with COVID modifications in place at the Welcome Plaza.
- At the Lower Grove Arrival Area, visitors may then walk up the Service Road (now the main trail) about .7 miles to the Grizzly Giant. The main boardwalk at the Arrival Area and the boardwalk loop is fenced off and closed for visitor safety until repairs can be made.
- The bathroom at the Lower Grove Arrival Area was damaged in the January wind event and is fenced off. There will be portable toilets and hand wash stations available there.
- Drinking water will not be available at the Lower Grove Arrival area, only at the Welcome Plaza. Plan accordingly.
- The Grizzly Giant is accessible to visitors, however, most of the trails inside the Lower and Upper Grove including the Perimeter Trail have not been cleared of downed trees yet. Clearing these trees will be on-going.
- ADA Vehicles may drive to Lower Grove Arrival Area (10 mph max speed). ADA Vehicles will not be permitted to drive up to the Grizzly Giant ADA Lot, as this is the main trail to the Grizzly Giant.
- Bicycles are permitted on the Grove Road between the Welcome Plaza and the Lower Grove Arrival area, but not beyond the Grove Arrival area or any trails. (E. Scott)

Hodgdon Meadows Power Outage Monday
PG&E will be replacing electrical poles in the Hodgdon Meadow area. There will be a temporary power outage on Monday, May 10, 0900-1300. For more information call Heather Gonzales, PG&E Outage Coordinator, at 726-5588. (K. Bablitch)

Yosemite Forum Tuesday
The next virtual Yosemite Forum presentation will take place Tuesday, May 11, from 3:30 to 4:30 pm: "Restoration of the Merced and Tuolumne Rivers" By Dr. Derek Booth, University of California, Santa Barbara

"Over the past several years a research team led by the University of California Santa Barbara has been studying watershed conditions, fluvial processes, and the effects of human disturbance on two key river reaches in Yosemite National Park, the Merced River through Yosemite Valley and the Tuolumne River through Tuolumne Meadows. Dr. Derek Booth will summarize the findings of the Merced River work and the recommended plan for restoration, and also suggest some intriguing parallels with the behavior of (and past impacts to) the Tuolumne River."

This Yosemite Forum presentation will take place via GoTo Webinar. Please register for this webinar at:

After registering, you will receive a confirmation email containing information about joining the webinar. For more information email (G. Stock)

12 New Electric Vehicle Charging Stations
Twelve new electric vehicle charging stations are available for visitor use at the Yosemite Valley Lodge and the El Portal market and gas station, including four parking spaces in the Alder Cottage parking area, four between the Juniper and Laurel Cottages, and two located in El Portal. Two additional chargers will be operational within the next 30 days at the site of the former Tuolumne Meadows service station, which is situated west of the Tuolumne Meadows store. These Level II, 240-volt chargers are managed by Yosemite Hospitality, using a Liberty Plugins app. Motorists may download the app for free using instructions provided on site, or pay for energy costs at nearby YH points of sale. Installation of these chargers was made possible under a grant by the California Energy Commission, with support by the U.S. Department of Energy, the National Park Foundation, and an anonymous donor. (J. Donovan)



Yosemite GIS User Group Monday
​​The next (virtual) meetup for parkwide GIS users is Monday, May 10 from 10 to noon. These bimonthly meetups are a chance to share and hear about what GIS users across the park are working on. The knowledge fair portion (approx. 11-noon) will include presentations about utilities mapping, making 508 compliant maps, and image or logo thumbnail tips and tricks. All park employees interested and/or involved in GIS are invited to attend. Email to request a calendar invitation. (E. Hale)

4 Mile Trail & JMT Ice Cut Now Open
For more information go to (P. Johnson/M. Hastings)

Tioga Road Administrative Access
Tioga Road is open for administrative access and travel. This means employees and contractors on official business only. Please close and lock the gate anytime you enter or exit the Tioga corridor. Also be aware that the road still has some patches of potential black ice and Maintenance crews may still be doing work on portions of the road, so drive carefully. (J. Filosa/K. Killian)



Wawona Road Biomass Removal
Contractors are removing biomass along Wawona Road between Wawona and the South Entrance. Delays up to 15 minutes may occur. Biomass removal is part of an ongoing project to reduce fuel loading along road corridors and to prepare for prescribed or wildland fires. Material is sent to co-gen facilities where it is converted to electricity. Email for more information. (G. Dickman)

Bridalveil Falls Project Traffic Control Update 3/5/21
There will be 15 minute delays from 0700 to 0830 and up to 30 minute delays from 0830 to 1730 on Southside Drive between Pohono Bridge and the Wawona Road junction. Contractors will be completing utility work in the roadway as part of the Bridalveil Falls project. The Bridalveil Fall parking lot and trails are closed to visitation to allow for ongoing rehabilitation work. NPS crews are currently constructing a new accessible trail and making other trail and site repairs. Contractor work consisting of utility upgrades and parking lot and bus platform improvements will continue through May 2021. (P. Johnson)

Tree Trimming In El Portal
Valley Forestry has begun residential trimming and hazard reduction in Rancheria and Old El Portal. Surveyors will be assessing trees. They will be followed by climbing crews performing work. This work will focus on reducing dead wood in trees and minimizing removal of green limbs unless absolutely necessary. Requests for hazard evaluation can be sent to Thanks for being patient with Forestry vehicles affecting traffic. (B. See)

El Portal Warehouse Roof Replacement
Replacement of the roofing membrane on the El Portal Warehouse roof is expected to continue through the spring, and possibly the summer. This project includes replacement of four of the large HVAC units on the roof, as well as the deteriorated joint sealant on the tilt-up concrete wall panels on the exterior walls, and demolition of an obsolete solar system. Crews will be working both on the roof and around the exterior of the building on lifts. They will try to keep all entrances open, but there may be periodic interruptions. (K. White)