Wednesday, October 21, 2009

Rainy weather ahead

After yesterday’s brief mild weather, it was close to 15C in many regions, today is a little cooler, but dry. The weather is about to become unsettled over the next several days. A combination of low pressure and associated fronts will move across the region beginning tonight, followed by a more intense storm on Saturday. The first system will bring a cold rain to the St. Lawrence Valley tonight and part of Thursday before late clearing. A warm front will lie just south of the region with temperatures in the 14 to 17C range expected south of the front, but under 5C north of the front in Montreal with a cold northeast wind. There may even be a period of wet snow northeast of Quebec City and in northern New Brunswick tonight. Keep this in mind if traveling east on Autoroute 20 or 40.

Saturday’s system will be stronger with more rain and strong winds. It will however be a little milder in Montreal with the second storm. There is still some uncertainty in the track of the weekend storm. I will update this later today. The potential exists for over 25mm of rain in many regions with this system. The only snow expected with this storm will be over northwest Quebec and northeast Ontario.

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