The only weather in LC should be Rain, Dusk, Sunlight,and Thunderstorm in my opinion. The reason why is I think snow is fitted for cold areas and mountain peaks, and sandstorms are for deserts. Just saying. By the way is Falkner gonna have a level 14 Pidgeotto?
The trainers in Liquid Crystal should have the same names, Pokemon, and levels that they were in the original Crystal. And when Heart Gold is released use those sprites for Pokemon.