Another active week of winter weather is unfolding with some snow showers this morning and again on Saturday evening followed by what could be a major winter storm for Sunday, Monday, and Tuesday. This is the winter that just will not end.
Periods of snow showers and some light snow will be a threat through this morning and into the early afternoon hours. The snowfall accumulations will range from a trace to as much as two inches of snow with the best potential for snowfall accumulation over southern New Jersey. By this afternoon, high pressure will start to build into the Philadelphia and New York City metropolitan areas with clearing skies. Winds will be from the northwest at 10 to 20 mph, decreasing to 5 to 10 mph by this afternoon. Temperatures will rise into the upper 20's to lower 30's for highs throughout the region.
Tonight on through Saturday morning, high pressure will be in control with clear skies to scattered clouds. Clouds will start to increase on Saturday afternoon as a warm front approaches from the Tennessee River Valley. Winds will be from the northwest at 5 to 15 mph through Friday and then back to the southwest at 5 to 15 mph. Temperatures on Thursday will range from the single digits to lower 10's for lows and lower to mid 30's for highs. Temperatures on Friday will be very cold with lows in the single digits and highs in the upper 10's to mid 20's. On Saturday, temperatures will rebound with lows in the lower 10's and highs in the lower to mid 30's.
A series of low pressure systems along a stationary front to the south of New Jersey and Pennsylvania will produce a variety of winter weather from moderate to heavy snow, to sleet and freezing rain, and rain. The precipitation is expected to start on Sunday morning and continue through Monday and into Tuesday afternoon. The exact track of the low pressure system is still very much unknown thus determining the location of the rain/ice/snow lines along with accumulation potential is not possible and highly volatile. However, there is clearly a potential for a long duration winter storm impact on the Philadelphia and New York City metropolitan areas. Temperatures will range from the mid 20's to mid 30's for lows and upper 20's to lower 40's for highs. Obviously, locations north of this frontal boundary will be far colder than to the south where rain is expected.