Colder weather on the way

Update 11AM : URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BURLINGTON VT
1109 AM EST WED NOV 17 2010
...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM EST THURSDAY...
* LOCATIONS...ALL OF NORTHERN NEW YORK.
(this will impact the St. Lawrence Valley of Ontario and extreme southwest Quebec as well.)
* WINDS...WEST 25 TO 35 MPH WITH GUSTS UP TO 50 MPH. (50-90km/h)
* TIMING...WINDS WILL INCREASE SHARPLY FROM THE WEST THIS
AFTERNOON...AND PEAK DURING THE 10 PM TO 2 AM TIME FRAME. WINDS
WILL GRADUALLY DIMINISH TOWARD DAYBREAK.

Steady rain continues to fall in Montreal this morning and across eastern Ontario as strong low pressure lifts north across Lake Ontario and down the St. Lawrence Valley. Over 25mm of rain has been reported from the metro region north and west with heavier amounts locally including 53mm at Kingston, ON, since late yesterday. The rain will continue all day today with steady, mild temperatures around 12C. Winds are beginning to pick up on the back side of this storm across southern Ontario and these will spread east today. Southwest winds will gust between 30-60km/h with some gusts along area shorelines near 80km/h. A quick scan of the obs for Ontario shows gusts to 72km/h at Goderich, 71km/h at Long Point, 59km/h at Hamilton and 41km/h in Ottawa. Conditions will not improve until later tonight and overnight. It will turn much colder tomorrow with highs only reaching 5C. After a break in the weather Thursday and Friday, a couple of clipper systems will begin to affect the region. These storms will bring the threat of rain and snow showers to Montreal but most importantly will usher in much colder air. There is the potential for measurable snow next week here in the east that could disrupt US Thanksgiving travel, so stay tuned for more on that.

SNOW & COLD
The first arctic cold outbreak of the season has spread south across Alberta and Saskatchewan over the last 24 hours. Low pressure moved across the southwest corner of Saskatchewan and into Montana with steady snow and blowing snow. A general 10-15cm was reported with low visibilities and icy roads causing numerous accidents in Calgary and points east. The cold has really established itself this morning with temperatures in the minus teens. It will warm very little today as another clipper brings 5-10cm of snow and a reinforcing shot of cold air. Temperatures will drop into the -20's in Alberta tonight. The snow and cold will spread east along the Trans Canada towards Manitoba. Travel will be poor in blowing snow across southern Saskatchewan on Thursday.

Image from CTV.ca