Yosemite was placed under a winter storm watch Wednesday afternoon as the National Weather Service warned that a Sierra Nevada winter storm could make travel dangerous from Friday evening through Sunday night. The watch was issued at 2:50 p.m. and remains in effect from Friday at 5 p.m. until Sunday, April 12, at 11 p.m.
The weather service said heavy snow could affect travel and outdoor activities, with winds gusting as high as 50 mph. It warned that roads, especially bridges and overpasses, are likely to become slick and hazardous, while visibility may fall below a quarter-mile because of falling and blowing snow. The combination of strong winds and snow on tree limbs could bring down power lines and trigger sporadic outages.
The strongest warning was about what the storm could do to anyone still on the road. The weather service said whiteout conditions are possible and may make travel treacherous and potentially life-threatening, and it urged people to stay indoors until conditions improve. It also said people should delay all travel if possible.
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The watch is part of the broader winter weather guidance the weather service uses when snow, blowing snow and strong winds are expected to turn mountain travel into a risk instead of a routine. In the Yosemite area, that means the threat is not just fresh snow on the ground but low visibility, slick pavement and wind-driven hazards that can quickly cut off safe movement.
The question now is not whether the storm will arrive, but how much it will disrupt movement through the park and nearby roads once it does. The watch begins Friday evening, and by then anyone planning to drive into the Sierra Nevada will have a clear warning to wait it out.
