While there is disagreement as to the amount of snow we can expect with estimates ranging from 2 to 6 inches to more than a foot there's little doubt that a major winter snow event is heading right for us and will arrive some time in the early morning hours of Wednesday, Jan. 18.
Here's the National Weather Service forecast. They've issued a Winter Storm Warning after 10pm.

Winter Storm Warning
Winter Weather Advisory
Short Term Forecast

Late Afternoon: Rain and snow showers likely. Mostly cloudy, with a high near 39. North northeast wind around 8 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.

Tonight: Rain and snow showers likely before 10pm, then snow. The snow could be heavy at times. Low around 26. Northeast wind around 9 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Wednesday: Snow before 10am, then rain, snow, and freezing rain. The snow could be heavy at times. High near 30. North northeast wind between 11 and 15 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow accumulation of 3 to 5 inches possible.

Wednesday Night: Rain, snow, and freezing rain before 10pm, then rain and snow. Low around 28. North northeast wind between 8 and 10 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Thursday: Rain and snow likely. Snow level rising to 600 feet. Cloudy, with a high near 36. North northeast wind around 8 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Thursday Night: Rain likely. Cloudy, with a low around 34. Chance of precipitation is 70%.