In reply to fenski:
As said, April is still quite always. But in all honesty I’m sure you will find good skiing at that time. In fact I’ve been travelling around there for skiing a lot during the last 20 or so years (granted, last time I was there is like 9 years ago… Thanks kids). And I can’t remember a single trip from April that has not offered great skiing. It can be really anything from nice Pow in say Tamok or Riksgränsen, SWE or perfect spring corn in Kvaloya, Lyngen or Lofoten.
At the time, be mobile and go where the temps and conditions are good.
Albeit I would say that April might be a tad late season for Lofoten (especially, If mid or late April). Prolly the same with Senja. But the higher stuff around Narvik will still be good, and like said go further North, higher or inland for better snow If too warm/wet in the coast.