The Tioga Road will open on Saturday, June 18, 2011, at 8 am. There will be several no-stopping zones and visitors should be aware that hiking opportunities are extremely limited due to snow and dangerous creek crossings. No services will be available along the road.
http://www.nps.gov/yose/planyourvisit/tioga.htm
http://www.nps.gov/yose/planyourvisit/tiogaopen.htm