Alert 1 , Severity ,information ,, Expect traffic congestion in Yosemite
While we welcome you to Yosemite, you should expect traffic congestion, especially in Yosemite Valley and at park entrances. Be prepared for multiple delays, up to two- to three-hours, especially in afternoons and on weekends.
Hantavirus pulmonary disease and plague
Alert 2 , Severity ,information ,, Hantavirus pulmonary disease and plague
Wild animals can transmit numerous diseases. Avoid sleeping in rodent-infested areas or near animal burrows. If you see evidence of rodent activity in your room or other facility, contact staff (don't clean it up yourself). Keep food from wildlife.
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Carry tire chains in your car and be prepared to use them (even if your car has four-wheel drive): chains may become mandatory at any time. Drive carefully even when there are no chain requirements: you may encounter icy spots on mostly dry roads.
Call 209/372-0200 (press 1 then 1) for the most up-to-date conditions (the information below only reflects planned or long-term closures).
Rivers & Waterfalls: Vernal Fall, Nevada Fall, Bridalveil Fall, and Yosemite Falls are all flowing high. Snowpack as of April 1 is 67% (Tuolumne River basin) and 61% (Merced River basin) of average for this time of year. Use extreme caution near waterfalls, rivers, and creeks.
Fires may occur spring through fall. Burn piles are possible, with locally smoky conditions, in winter. Yosemite may be hazy due to fires elsewhere in California (read the latest fire news and check air quality).
Reservations are available up to five months in advance and are strongly recommended. If you don't have a reservation, get details about camping without a reservation.
Visit Yosemite Hospitality's website for lodging information. Reservations are available and recommended up to 366 days in advance.
Trails in Yosemite may be closed when there are hidden hazards or when they are impassable due to rock fall, snow, ice, or fire. Open trails aren't necessarily free of hazards--by entering the wilderness, you assume responsibility for your safety and must use good judgment. Trails not listed below are open, but may be snowy and very difficult to find from about November through May/June (and may have other hazards).
TheJohn Muir Trail from Clark Point to near the top of Nevada Fall is closed due to trail damage. Access to the top of Nevada Fall is available via the Mist Trail. Conditions may be snowy and/or icy.
TheFour Mile Trailis closed from Union Point to Glacier Point. It is possible to hike about halfway up the trail from Yosemite Valley (to Union Point).
Due to bear activity along the Snow Creek trail and the potential for bear/human interactions the area to the south and east of the footbridge is closed to overnight camping and unattended food (even if stores properly). The National Park Service will continue to monitor the bears' activity and will re-open the area to camping as soon as possible. The trails and areas are open to day hiking.
The Half Dome cables are down for the season. They are scheduled be up beginning May 25, 2018 through October 9, 2018, conditions permitting. A permit is required to hike to the top of Half Dome when the cables are up.
Trails in the Mariposa Grove are closed due to a restoration project.
