Years ago we rented villas outside of Sandy Bay. Everyday we would ask the butler what the weather was going to be for the day. He would up into the steep hills and give us his forecast - Sunny in two hours, rain in two hours, cloudy in two hours, whatever. I finally asked why only the two hours forecast and his reply "That big hill is only two hours away". Sure enough we started watching "that big hill" before we planned on doing anything. It was very accurate.