In reply to donie:
You need to take water from the sasc fura hut which is free from a drinking trough outside. This means that you can walk in lightly laden in terms of water. There is no water on the col below the north ridge.
There is no place out of the rain, although in the event of it being very wet, descent would probably be the preferred option! It is reasonably flat and free from stone fall danger.
James