Hi Lisa,
The countdown is on... you're going to Walt Disney World next week! I see where you may have viewed Extra Magic Hours for Typhoon Lagoon or Blizzard Beach on independent sites. Occasionally, sites may list these hours based on historical data, or perhaps Disney recently adjusted the EMH schedule for other various reasons. According to the official
Park Calendar the Water Parks will be open from 9:00 a.m. to 8:00 p.m. on the dates you mentioned. My suggestion is to arrive right at Park opening to experience the shortest lines. 11 hours of operating hours is sure to give you plenty of time to enjoy all of the splash-tastic attractions!
Upon check-in at your Disney Resort Hotel, you'll be provided with the week's schedule of Extra Magic Hours for your reference. You can also download the My Disney Experience app to your smartphone to not only have EMH information at your fingertips, but attraction wait times, character locations, itinerary notes and more! This handy feature will save you tons of time in the Parks.
Thank you for your question, Lisa, and have a
MAGICAL vacation!
Sherri