The abrupt change in weather over the past few days has brought temperatures down. We've suddenly gone from the warm and muggy atmosphere of last week to a late-October atmosphere, with cold mornings and cool to mild middays. In fact, temperatures are around four or five degrees below average. Autumn has arrived with a bang. And with this influx of cold, polar air, the snow level in the Pyrenees has also dropped sharply, with some areas already seeing the first snowfalls of the season.