January 16th, 2025

 

The surface chart shows a trough ahead of an approaching warm front. Radar shows light snow over Pennsylvania, western Maryland and western New York State, this will continue to push east bringing these light snow showers to most of the rest of the region. A general dusting to an inch is possible with a few higher amounts likely, especially in the higher elevations.  Today is warmer than yesterday, the southwest winds will continue to push in seasonal temperatures. Into the first half of the weekend. During Sunday the warmer air will end, and temperatures will be in freefall during the late morning and afternoon.

While Saturday looks relatively dry, we will see a disturbance in the northern stream riding that arctic boundary. At the same time a disturbance in the southern stream with gulf moisture will be approaching. Saturday night/Sunday into next week, this strong arctic front will roll through, bringing in the coldest air of the winter so far.  Sunday an area of low pressure will be developing off the Carolinas. This low will be moving north and east Sunday evening/Sunday night as it heads for Nova Scotia. This could bring a few inches of snow to parts of the I-95 Corridor and points east into southern/southeast New England. This won’t be a major storm, but DC to Boston could see rain/mix change to all snow during Sunday afternoon into Sunday evening.  How far north and west the snow gets will depend on the track, any shift northward could bring moderate accumulating snow into the interior Northeast.

The airmass coming in for next week will originate in Siberia, so northern areas will likely see daytime temperatures in the single digits by Tuesday with overnight lows well below zero. Those closer to the coast and over the Middle Atlantic will see daytime highs in the teens with overnight lows in the single digits. Winds will be blustery; this will add a windchill to the brutal cold.  So, make sure you dress for the cold, frostbite can occur very quickly. Wednesday will see a continuation of the brutal cold. Thursday will likely see daytime temperatures rise a few degrees. The cold will last through at least the weekend. Next week will see lake effect snow resume for those downwind of Lake Erie and Lake Ontario. The pattern is going to be active.  There is a chance a storm tries to develop over the southern US Midweek, could this come up the coast? Maybe, but the strong arctic high could push that very cold air so far south that other than a chance for ice across the deep south, the storm would be suppressed well south of us. Time will tell. There are going to be chances for more storms over the next 10-14 days.