December 16th 2024.

 

Today’s Northeast weather discussion…

Our latest system that brought the rain and snow is exiting to the east, other than some lingering rain mix the region is going to be dry. But another system over the Ohio Valley is approaching. This will push north and east and head into Canada, this will allow for a warm front to bring in milder air for the next few days. The trailing cold won’t have much cold air behind it. So, tomorrow and Wednesday will be quite mild.

A disturbance in the northern stream will interact with a weak disturbance with moisture in the southern stream, the leading warm front will allow mostly rain to move across the region, but there could be some mixing in the highest elevations. The trailing cold front will move through later Wednesday into Thursday; this will bring mostly rain for most of Pennsylvania and the Middle Atlantic, with rain changing over to a snow/mix over the Appalachians, higher elevations of Pennsylvania, into New York State and Northern into Central New England.  Mostly rain is likely across southern New England.  Chiller air will start to move in behind this system, so there could be a few snowflakes in the I-95 and closer to the coast, but no accumulation is expected.

We have a system moving onto the Northwest Coast. This will head toward the Upper Midwest, from here it will move over the Great Lakes as it dives south and east. Behind this arctic air currently locked up over Northern Canada, will drop into the Eastern CONUS.  On Friday we look to see low pressure to our south that could develop off the Coast. How this interacts with the arctic front will depend on track and timing.  There is a chance for an impactful winter storm to bring accumulating snow to interior parts of the Northeast. But the timing of all this has to be worked out. One thing is certain much colder air will work into the region over the Weekend into Next week, this could be the coldest air so far this season. The lake effect will be falling behind the system, so those downwind of Lake Erie and Lake Ontario, will be adding more snow.  

The Winter Solstice, gets here this Saturday at 4:21 a.m.