This is a very decent-sized typhoon that's going to impact around the northern tip of Hainan, then head into Vietnam.

Not a lot of typhoons make it past Philippines without significant degradation, but Yagi (which just clipped northern ppe) has regained full-strength & looks set to make landfall as a super-typhoon. Places that are not often hit can be more prone to destruction by virtue of not being so battle-hardened. I'd have serious concerns for any communities in Yagi's path.