Helsinki mobilises snow ploughs after overnight storm Helsinki mobilises its entire fleet of 400 snow ploughs to deal with the most intense overnight snowfall so far this winter after around 12 centimetres of snow fell on the Finnish capital during a few hours in the early morning, leading to cancelled flights as well as road and rail delays. Authorities had warned residents to avoid travelling to work if possible, though by mid-morning, transport in the world’s second-northernmost capital city had largely returned to normal. IMAGES of snow ploughs clearing snow from Helsinki streets and shots of snow in Helsinki