Third and Final Part of Wintry Mess Event to Produce Snow

The National Weather Service believes there's a high probability of snow in the green areas on this map, with darker shades reflecting a higher probability of heavier amounts. Image: NWS — The National Weather Service believes there’s a high probability of snow in the green areas on this map, with darker shades reflecting a higher probability of heavier amounts. Image: NWS

A three part wintry mess that saw the weather pattern evolve from a wet and mild one to a cold and icy one is about to conclude with a third event that is expected to produce light snow across portions of the eastern United States. High pressure centered in the Ohio River Valley this morning will move to the northeast and into Quebec, Canada for tonight and tomorrow. Low pressure, in the form of a Clipper System, is forecast to pass across the southern and eastern Great Lakes on Monday night and Tuesday. A secondary low is expected to develop off Cape Hatteras, North Carolina on Tuesday before moving northeast and passing near Cape Cod, Massachusetts on Wednesday. It is this secondary low that’ll produce snowfall for portions of the Mid Atlantic and New England during the middle part of the upcoming week.

This secondary low was initially forecast to blossom closer to the coast; if it were to do that, significant snow would fall within the I-95 corridor. At this time, it appears the system will intensify far enough off-shore to only produce light snow.

Once this third and final system exits, conditions will return to near-normal in the northeast. High pressure from the west is forecast to build across the southeastern and Middle Atlantic states on Thursday and Friday before moving out to sea. With the high pressure system in place, it should be fair, dry, and seasonable for the region through the balance of the week.