The weather conditions are essential when practicing ski touring (especially in the Pyrenees as conditions change very quickly). When not live foot of the mountains, it is very important to be able to rely on people who have a real power over weather. For years these friends Frédéric Cabot and Météo-France Tarbes share their passion of the mountain and give advice on different forums Pyrenees. They are very often trips in all conditions, so they have acquired a real field experience. Outputs of the ideas in this book series are neither too simple nor too complicated. The key is there and the playback format is very convenient. There is to wait for the right conditions to do this or that out!