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Widespread snow today, localized tonight

<B>(Monday Afternoon January 21, 2013)</B> Snow showers will become scattered to widespread through the late afternoon as low pressure passes by to our south. A band of lake effect snow sets up tonight southeast of Lake Ontario, bringing several inches of snow by Tuesday afternoon.
A reinforcing shot of cold air is poised to move through Central New York today.  The arrival of this front has disrupted the heavy lake effect snow that impact areas north of Rte 31 and especially southern Oswego County.  As the day unfolds, there will likely be more widespread flurries and snow showers with the arrival of energy associated with the front.  There may even be a few heavier squalls later this afternoon as the system passing through the area.

Once the front passes, winds are expected to re-align into the west and northwest as bitterly cold air moves into the region.  As a result, lake effect snow will likely become better organized tonight and last into tomorrow.  Indications are that lake effect snow will likely develop north of the immediate Syracuse area, possibly over Oswego and northern Cayuga and northern Oneida Counties.  However, as the night unfolds winds are expected to become more northwesterly.  Consequently, lake effect snow will shift south into the immediate Central New York/Syracuse area.  Exactly how much falls is a bit unclear as the intensity of the snow band and how quickly the band moves will determine accumulations over Central New York.

Flurries and squalls will fall much of tomorrow for areas southeast of Lake Ontario tomorrow as high temperatures struggle to reach the mid teens.  Even colder air will mean high temperatures may fall to reach 10 degrees Wednesday as the threat for flurries and squalls continue.  It should be noted that early morning low temperatures will likely dip well below zero points northeast to southeast of Syracuse, or areas away from the influence of Lake Ontario.

A separate system looks to bring widespread snow to the region Friday as cold air should remain in Central New York for the weekend.
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