[She's determined now to stop this blizzard however she's capable of, and thus has broken out past the clouds to fly up overhead, to try to figure out where the source is]
[When she spots the eye of the storm, she's diving down into it, landing right in front of the cave and, well, logically figuring that's what the source must be]
[So imagine her surprise when she sees Elsa]
[--?!]
What are you doing out here? [She's been wondering what happened to you, worried really, but suddenly her reactions the other day make much more sense]