Are you dreaming of a white Christmas? For some, those dreams will be a reality this year! A very weak area of low pressure will approach Western Pennsylvania Sunday night from the Ohio Valley and eventually merge with a coastal system off the coast early Christmas morning.

Taking a look at the mid-day run of the GFS, you can see the area of snow developing for western areas by 7:00 PM Sunday night:

Notice the low pressure off the coast of Virginia. In the next frame, these two systems merge, allowing for snow to spread over Central and Eastern Pennsylvania by 1:00 AM Christmas morning: 

This will not be a high impact event. The snow will remain light for everyone and it is a quick hitter. By 7:00 AM Christmas morning the snow is exiting the area:

If you have plans traveling to Southern New England on Christmas, prepare for more of an impact from this event. Those areas could see several inches of snowfall.


Timing: Snow will overspread west to east between 6:00 PM and 10:00 PM Sunday night and exit the area from west to east between 4:00 AM and 8:00 AM Christmas morning.

Area A: Best chance for accumulating snow. Totals will be light, likely in the 1 to 2 inch category, but enough for a white Christmas!

Area B: Snow is possible. Accumulations look minimal, but cannot rule out a coating of snow!

All in all, this is not a big system by any means. Instead, just enough snow to make things look festive for the holiday!

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