From the Touring Plans public site (subscribers and those with the app get more detailed info). TP's predictions are generally pretty accurate. We use their app all the time and their wait times are often even more accurate than those posted at the attractions. For those traveling during the busy times, keep in mind that park capacity closures are common Christmas-New Years week. I'll dig up the 4 levels of capacity closures and post those here as well. http://touringplans..../crowd-calendar