Varsom.no is a Norwegian website that provides avalanche bulletins and weather warnings for almost every part of the country - also in English.
We also recommend you to check the weather forecast at yr.no for the area before you head off, and to consult with local people if you plan a tour without a mountain guide.
The weather conditions can vary in the mountains, so have the right equipment.
Visit Norway has made a great website with good advice on safety for ski tourers.
In an emergency - call 112!
Have a great experience!