In a statement on his website, Woods said that while his golf game needs work before he returns to the PGA Tour, he still plans to spend time "with the people that are important to me" during his break.
This is Woods' second trip to Vail, Colo., to support Vonn during the world championships, which began Feb. 2 and will conclude Sunday. He was in attendance last week before playing in the Farmers Insurance Open, and he also watched her ski last month in Italy, where a photographer knocked out one of his front teeth.
Vonn competed in the giant slalom Thursday, having tweeted earlier in the week that it would be her last race of the competition.
Woods withdrew after 11 holes last week at Torrey Pines, and the statement he released Wednesday left no firm date for a return to competition. Woods said that he would "like to play" in the Honda Classic later this month, an event he has played each of the last three years, but added, "I won't be there unless my game is tournament-ready."