Area schools are letting out, so it's not just the temperatures that are starting to heat up in Central Florida. Disney (NYSE: DIS), Universal Orlando parent Comcast (NASDAQ: CMCSA), and SeaWorld Entertainment (NYSE: SEAS) are starting to widen their operating schedules in anticipation of a healthy flow of tourists during the peak summer season.Momentum is on the industry's side after a blowout performance through the first three months of this calendar year.