Another plowable snowfall comes this way for late during this final weekend of 2013. There is the potential for over half a foot in many areas, although the track of the storm will be key.
Before we get there though, Saturday looks like a decent start for the weekend. Clouds will be overhead to begin the day, however, sunshine will pierce through those clouds for at least partial sunshine. Temperatures will also be quite mild as highs approach 40° over southern-most Maine; mid to upper 30s up through Kennebec and Waldo Counties and near freezing in the higher elevations of Oxford, Franklin and Somerset Counties. A couple snow flurries are possible in the mountains as well.
We begin on Sunday with filtered sunshine. Clouds will thicken though the day, however, and precipitation will likely begin by dinner time. With temperatures well into the 30s in many areas, the precipitation may begin as rain, however, as temperatures cool down and the precipitation begins to turn heavier, the rain should change over to snow. The one exception will be near the coast, where some mixed precip or rain may occur. This rain/snow line will be very difficult to forecast and will obviously have an impact on snowfall tallies. Any snow that does fall along the southern and Midcoast areas will likely be quite heavy and wet.
Snow/mixed precip will come down heavy at times Sunday night as low pressure passes over the Gulf of Maine, just off the coast. The low should pull away by Monday morning so that most of the precipitation will be at least winding down for morning drive. WHen all is said and done, many areas may see well over half a foot of snow; perhaps as much as 10" for areas
The one bit of good news is that this appears to be a quick moving storm that lasts only about 8 hours.
As mentioned, the track of the storm as well as some tricky warmer temperatures at the low/mid-levels will make this a difficult forecast, especially near the coast. We will be fine-tuning the snowfall totals throughout the weekend and you are advised to keep up-to-date with the forecast this weekend (don't get your last forecast update tonight!).
As a footnote, colder temperatures will be arriving for New Year's Day. Some places may struggle to get out of the single digits!
Have a great weekend... I'll see you again soon!