The first measurable snowfall has been reported in Northeastern North America as Arctic Air has moved south into Eastern Canada and the USA.
Quebec's largest ski area, Mont Tremblant, posted pictures of the first pre-season snowfall of 23-24 there while in New York state Whiteface Mountain reported some snowfall and heavy frost as temperatures dipped below freezing there too.
Sunday River in Maine posted video of snowmaking systems firing up, without comment. It is one f several ski areas in the region that have managed to open in October in the past, sometimes ahead of high altitude resorts in Colorado where snowmaking got underway last week.
The long term forecast for Northeast America looks more promising than the past three La Nina winters as a strong el Nino, as forecast this winter, often means a succession of storms meeting cold air from the north, delivering consistent low temperatures and plenty of snowfall, fingers crossed.