Just in case anyone is looking at this forum and traveling today, Tioga Road is temporarily closed. There's a winter weather advisory in effect 6,000 feet and above which means snow/ice. And it is not a fun road to be on in snow/ice. We have a little storm rolling through at the moment.
The park's road conditions number is 209-372-0200. Dial 1 and then 1 again to get the most up to date road conditions. It's going to warm up quickly over the next few days, but it's difficult to predict when it will reopen again.