When the weather forecasts torrential downpours and thunderstorms what choice is there besides wear a cute dress that makes you feel happy and sunny. Even Deb wore a cute dress for just that reason! That is most likely a lie, I don't think Deb ever wears clothes for that reason. It was probably the cleanest thing close at hand.
The pattern is McCalls 4769. Far and away one of the best patterns I have stumbled upon.
My understitching tutorial will be up tomorrow. Hope it's drier where you are!