Low pressure over the upper Great Lakes early this morning will move over Lake Ontario this afternoon, as a secondary wave of low pressure is forecast to form over the coastal waters of southern New England. A deep and cold airmass was in place over the Capital Region, and will remain in place through tonight. Snowfall is forecast to commence over the Capital Region this morning, with periods of light to moderate snowfall anticipated through the course of the day today. The coastal low pressure area will move quickly into the Gulf of Maine overnight tonight, leaving just scattered snow showers and flurries over our region into Wednesday morning.
Some lake effect activity is possible on Wednesday, albeit mostly to the north and west of the immediate Capital Region. It will be a blustery day as a ridge of high pressure attempts to build into the region, and does battle with the departing coastal storm. This will cause the winds to kick up during the day from the west and northwest. Temperatures will moderate some as we head into the midweek period and the winds take on a more westerly to southwesterly direction.
Clouds look to be back on the increase by Thursday, with an unsettled, yet milder, weather pattern evolving over the region as we end the work week and head into the final weekend before the Christmas holiday.
...Below is the official forecast for the Capital Region and vicinity...
Today: Overcast with periods of snow developing this morning, and lasting through the afternoon. High near 20. South to southeast winds 5-10 MPH. Chance of snow is 80 percent. Total snow accumulations of 2-4 inches.
Tonight: Mostly cloudy with the continued chance of light snow showers or flurries. Low 15-20. Northwest winds 5-10 MPH. Chance of snow is 30 percent. Additional snow accumulations of an inch or less.
Wednesday: Mostly cloudy and breezy. High in the lower 30’s. West winds 10-20 MPH.
Wednesday Night: Partly cloudy to start, becoming mostly cloudy late at night. Low near 20. West winds 5-15 MPH early, shifting southwest 5-10 MPH late.
Thursday: Increasing clouds. High in the mid 30’s. Southwest winds 5-15 MPH.
Friday: A 50 percent chance of snow, sleet, freezing rain and/or rain. High near 40 and low near 30.
Saturday: A 50 percent chance of snow, sleet, and/or freezing rain changing to all rain. High near 45 and low near 35.
Sunday: Overcast with a 50 percent chance of rain showers, mixing with snow and/or sleet at times. High near 45 and low near 35.
Monday: Intervals of clouds and sunshine with a 30 percent chance of rain and/or snow showers. High near 35 and low near 20.