Thursday, December 22, 2011

Very icy morning

Ice coats my Christmas decorations and trees on Ile Perrot last evening.

Lots of freezing rain fell on Ile Perrot last evening. In less than 2 hours I measured 11.9mm of precipitation between 8 and 10pm. Thankfully the temperature rose just slightly above freezing overnight and we are sitting at 1C, I just walked my dog and some melting is occurring. The freezing rain caused numerous accidents across the island of Montreal yesterday with nearly 2 dozen reported and another 50 or so in Ottawa. Northeast of Montreal near Drummondville, a collision between a car and school bus resulted in two fatalities. We would have been better off with snow but unfortunately this type of winter often results in numerous freezing rain events. The low pressure responsible for this mess  moved from the Midwest across New York State just south of the city and is now well east of Montreal and heading into Atlantic Canada. A few flurries or snow showers will occur today with temperatures remaining steady near 1C.

It will be chilly overnight with a northeast wind, temperatures down to -7C and some snow developing. Low pressure will skirt the US Atlantic coast tonight an head into the Maratimes on Friday. Snow is expected to spread from south to north across the entire region and affect mainly from Montreal south and east. The heaviest amounts will be in southern Vermont where up to 15cm (6 inches) is possible. Amounts will taper off rapidly with just 1 or 2cm (less than 1inch) expected in Montreal. Skies will remain cloudy on Friday with flurries and chilly. The Christmas weekend at this time looks partly cloudy and chilly with perhaps a few flurries, but no major storms expected at this time.

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