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| Roads were snow covered early Sunday morning across the Montreal region, as steady snow fell along a warm front. A quick 5-10cm fell across much of southern Quebec. (Valley Weather Photo) |
A strong cold front will produce snow squalls this afternoon and evening across eastern Ontario and southern Quebec.
A warm front has lifted north of the Montreal region Sunday afternoon, accompanied by strong southwest winds blowing off Lake Ontario funneling moisture down the St. Lawrence Valley. Earlier Sunday, steady snow accumulated a quick 5-10cm across southwestern Quebec, with 7cm falling here on Ile Perrot. Montreal is now in the mild sector, with gusty southwest winds up to 50km/h, producing areas of blowing and drifting snow.
Temperatures have warmed from a cold morning low of -15C (5F) to our current reading, as I write, of 0C (32F). Temperatures will take a tumble later this evening as a potent arctic boundary crosses the region. Along and ahead of that front we can expect some decent snow squall activity, with brief heavy bursts of snow and strong winds reducing visibility. The squalls will impact the Montreal region during the early evening hours.
A snow squall watch is currently in effect for a large portion of western Quebec and eastern Ontario, including the Ottawa Valley, and will likely be extended into the Montreal region later this afternoon.
The steady snow this morning was the result of moisture being driven off the wide open waters of Lake Ontario. Further southwest along the Highway 401 corridor, heavy snow has been falling making for poor travel between Trenton and Cornwall.
After the front clears the region this evening, temperatures will fall quickly to a low of -12C (10F) in Montreal and rising to -5C (23F) on Monday under partly cloudy skies. Winds will be quite gusty this evening, out of the northwest 30-50km/h, diminishing on Monday afternoon.
A warming trend starts on Tuesday, with temperatures expected to rise back above freezing.
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