An active period of weather awaits us in the form of two cold snaps and a couple of weather systems. Many details are impossible to pinpoint with high confidence until we enter very close timing windows. The sampling of and thus the modeling of our polar jet stream and it's very important disturbances has been quite poor recently and this is going to continue. As such until we are within a minimum 72 hours and more favorably within 48 hours of an event while we may have sound theories to discuss we do not and will not have a confident solution you can plan for.
Unsettled weather will precede the passage of a cold front on Wednesday. As the cold air filters in a minor disturbance may affect the region with some light rain and possibly snow showers early Friday morning before slipping off the Mid-Atlantic coastline. Several disturbances may come together to produce a significant weather system on Monday that does feature a snow fall threat before it departs the region. A second strong cold snap is expected to invade the region following this potential storm system.
With such uncertainty regarding the evolution and timing of our polar jet stream I would caution that there's a decent chance a lot of what you read below will be changing. As it does we will evolve along with it and discuss the new possibilities within the blog comments section. All comments, ideas, and model map postings are welcome. We should have plenty to talk about!
http://www.wunderground.com/blog/Pcroton/comment.html?entrynum=64
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