With just a little over 36 hours to go until Christmas 2011, it has snowed in Montreal. While it was not really a surprise, perhaps the coverage and amount was. Low pressure is moving well south of Montreal off the Jersey coast this morning. Precipitation worked its way north into the St. Lawrence Valley late last evening in the form of light rain that changed to wet snow around midnight as the temperature dropped to 0C, where it is currently. Around 3cm, or just over one inch of snow has fallen at my home here on Ile Perrot with another 1 to 2cm likely before it tapers off by mid-morning. The snow will be followed by dropping temperatures, with the coldest night of the season expected tonight at -17C in Montreal, colder outside the city. The Christmas weekend looks wintry with very cold temperatures on Saturday (-10C) under fair skies and perhaps a quick shot of snow late on Christmas Day with milder temperatures closer to -2C.
Lots of people are travelling today - expect snow covered or slushy roads in most of southern Quebec and extreme eastern Ontario with areas north and west towards the Ottawa Valley reporting the coldest temperatures. South of Montreal along the US border and into New England it was mostly a rain event, but some snow is mixing in at this time and icy patches are likely. Icy patches will develop everywhere today as temperatures drop throughout the day so adjust your speed and allow plenty of braking distance. All in all it is not bad travel weather, more of a nuisance snow - be courteous and arrive safely.