A day when the weather is shifting is interesting to watch. This morning, the valley was still grey, and the mountain skies were bright and blue. As the day passed, the low clouds over the valley lifted like a slow wave coming to a crest. A froth of thin cloud formed above the lower ridges, and the whole rolling mass tumbled up the mountainsides. Now, the stars are mostly obscured, and the chilled air smells of fog. There may be rain on the way. That will be good. The few days of warm sunshine have dried the lawns and left them with patches of grey, and the small, seasonal watercourses have fallen silent. Some rain will be nice, now.