|The first snow of the season covered the ground on L'Ile Perrot Sunday morning. (ValleyWX)|
Lake Effect Storm
Those same winds will generate a significant lake effect snow event across western and central New York state, around Lake Huron and Georgian Bay in Ontario and even the southern St. Lawrence Valley between Kingston and Brockville. Heavy lake effect snow will develop later tonight and persist into Wednesday. Forecasters expect 1 to 2 feet (30-60cm) of snow along with 80km/h winds in spots. The near blizzard conditions will be accompanied by thunder and lightning in some cases. This will be a major lake effect storm with travel difficult to impossible along portions of Highway 401 as well as Interstates 81 and 90 in New York. The current warnings include Watertown and Buffalo as well as the Adirondacks of New York. In Ontario, snow squall watches are posted for a wide area from Georgian Bay to the upper Ottawa Valley as well as the Niagara Region and Prince Edward County to Kingston. Some of the most persistent squalls may even brush extreme southwest Quebec late Tuesday.