National Park Service: “National Park officials, Department of Water Resource officials, and the National Oceanic and Atmospheric Administration have predicted that water levels are likely to rise and remain above the normal high water mark from approximately late Friday night through Monday morning.
Due to safety concerns, visitors are advised that facilities and/or roads in Yosemite Valley may have limited accessibility or not be accessible during high water. Additionally, access may be limited at any time to only those vehicles determined to have ground clearance high enough to be safe.
Visitors who are concerned about road conditions are advised to check the Yosemite National Park webpage at www.nps.gov/yose or to call the automated telephone message, which will be updated regularly as conditions change:
Road and weather conditions: 209/372-0200
Visitors who are planning to stay in Yosemite Valley campgrounds, including Upper, Lower, and North Pines are advised to call the campground office at 209/372-8502 to determine the status of their reserved site.
Visitors with reservations at lodging operated by Delaware North Company, Inc., including Housekeeping Camp, the Yosemite Lodge, the Ahwahnee Hotel, or Curry Village are advised to call (559) 252-4848 to check the status of their reservation.
Spring high water is a natural process in Yosemite National Park. Heavy snowpack and warm weather are contributing to the likelihood of stream flooding. The National Park Service will be continually monitoring and assessing the situation. Yosemite National Park will remain open to visitors with impacts from occasional high water only expected in Yosemite Valley.”