Ruka is a resort in Lapland (finlandia) skied between 205 and 492 metres.
The camera shows real visibility and snow on the ground, not the forecast. Snow depth by altitude — 205 to 492 m — and the days ahead are in the Ruka snow report.
Which lifts and runs Ruka opens is published by the resort every morning and changes with the wind: the upper ones, up to 492 m, are the most exposed. If the camera is a white blur mid-morning, that is usually why.