Next storm on the horizon for Quebec and Ontario

Like most of this winter, it looks like mild air will be pushed north with this next storm. This will result in a messy wintry mix changing to rain here in Montreal by late Wednesday. Winds will be very strong with this storm.

After a rather mild weekend, temperatures have fallen back this morning to -14C (7F) here on L'Ile Perrot and at Trudeau Airport. High pressure will be in place, giving Montreal a sunny and chilly day, with a high near -8C (17F). After a very cold low of -16C (4F) tonight, Tuesday will be a touch milder with more sun than clouds and a high near -6C (20F).

Late Tuesday, a winter storm will be developing over the lower Mississippi Valley. This system will be our next significant weather maker, arriving by Wednesday across southern Ontario and Quebec. It looks like this storm will take a track west of Montreal, pushing mild air into southern Quebec once again. At this time, we are looking at a mix of snow and freezing rain Wednesday, changing over to rain by late in the day or the overnight period. Temperatures will rise well above freezing by Thursday. Some regions, especially north and west of Montreal, may see significant amounts of snow and ice. The storm is forecast to move from Ohio into northern New York and southern Quebec by Thursday. On the back side of the system, colder air will change all precipitation back to snow by Friday. Strong winds are expected, as the storm will be deepening by Thursday when it moves into Quebec. Weather warnings will be likely for a portion of the area. I will post an update on this potential storm later today.

It is hard to believe that just a few miles can make such a difference with winter storms. There is virtually no snow along the US/Quebec border at Champlain, NY (above), while Montreal has widespread snow cover, and record snowfall was recorded last week in the Ottawa Valley. (Valley Weather Photo)