Friday, December 14, 2012

Weekend weather update - Montreal

I was a little under the weather yesterday so to speak, so I apologize for not updating the blog. Fortunately we are in this tranquil weather period that feels more like early fall than the start of winter. Each time the computer forecast models hint at a major shift in the atmosphere it does not occur and we continue along with this same mundane weather.

On Wednesday evening, L'Ile Perrot and portions of the south shore had a couple of decent snow showers that put down a quick coating to 2cm of snow depending where you were. It iced up the roads quickly and made the end of the commute interesting. Today we have mild air in place this morning as a weak low pressure area travels well north of the city. We are currently at 1C and should add a degree or two to that before we start the slide down. A cold front will move through the area with flurries this afternoon and very cold temperatures tonight. Look for lows between -15 and -20C across southern Quebec and eastern Ontario. Saturday looks fair and chilly with highs around -7C.

On Sunday another weak low pressure system will move into Ontario with a warm front approaching Montreal and the St. Lawrence Valley. A period of light snow and  perhaps some spotty freezing rain will begin late Sunday and continue into Monday. Amounts will be light in the 5-10cm (2-4 inch) range at this time. Stronger low pressure may affect the area mid week with the chance for more snow. Once again forecast models are having a very difficult time agreeing on a scenario and track so we will wait before giving more info on that potential storm.

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