Postscript (5 January 0:00):
No, it’s no lake effect, just ordinary snowfall. More snow to come, but probably not much.
Skelleftehamn has a quite exposed location when it comes to snow. I experienced it several times, that quite huge amount fell it a short time.
The so called lake-effect snow occurs, when the Baltic sea is still open and winds blow onshore. Mostly it is very local and interestingly enough it is mostly ignored completely by the smhi, the Swedish weather service.
Today it started snowing round 13:00 and snow fall increased. Some neighbours have already started ploughing and on the road lie round about 15 new snow from today, mostly from the last hours.
In January 2014 came 70 to 80 snow within two days, December 2012 fell 83 cm snow within 24 hours. Even last winter came a lot of snow straight, but I wasn’t home.
I’m curious how much snow we will have tomorrow morning and when it will stop snowing. And finally it’s cold enough for the snow to stay with forecasted temperatures between -14 and -23 °C.
For certain I can make my first ski tour this winter, perhaps to Storgrundet, the nearest island.