Emmeline Vance.
Having learned a thing or two from the week of craziness, Emmeline entered the doorway with one of the survival kits that Aberforth had taught her how to make. I don't know what all was in them, but...
Anyway, once the storm came, she went into Auror mode and made sure everyone else around her got up to the treehouses safely before she climbed up after them. She's not thrilled about what's going on, and was a little freaked out by Florean for a second, but as long as there aren't any Krakens looming up out of the water, she can hold it together!