FS9 presented a revolutionary way of displaying weather and presented us with the ability to have real-world weather, where the METAR would be downloaded into the world. You would then have those same conditions in the entire world for the entire flight. FSX brought this concept a step further with 15 minute updates based on where your aircraft was located.
This is a companion discussion topic for the original entry at https://www.helisimmer.com/reviews/review-active-sky-next/