Wind is blowing "Princess" about but not much, think between the building and where the vent cover is now the adults get more protection from north/northwest winds. And she has tucked the eggs up right against the wall so she doesn't have to keep her head fat to keep from getting tossed off the eggs.
As for the rain and snow, not the first time for Princess if it's her. And honestly, getting wet and cold serves her right for choosing the darn ledge. The eggs should be fine even if they are uncovered a bit, they are water-resistant and it isn't really cold, just the potential to be messy. The adults are going to pay for it more, but hey, they chose the view.