For Red I'd recommend having your team at least level 80 each and maybe Tyranitar as well since its ability will negate the hail, Red's team is Pikachu, Venusaur, Charizard, Blastoise, Snorlax, and Lapras all around level 80 or higher each. Talk to Professor Oak in Pallet Town after getting all 16 badges and he'll give you Rock Climb and the ability to go to Mount Silver. Hope that helps.