What is going to make this upcoming storm rather unusual is that as the low pressure system located in the Carolinas Thursday morning begins to intensity in the afternoon, it will cause the precipitation throughout much of Maryland, Virginia and western North Carolina to become heavier and steadier.
Therefore, temperatures starting off mostly in the 40s Thursday morning (it was 41 at BWI as of 4 a.m. but 49 at the Maryland Science Center) will tend to hold nearly steady for a few hours before they wind up rolling back into the 30s in the afternoon.
And, this afternoon (it should come as no surprise) is when we expect the rain to mix with and then eventually change over to a few hours of heavy, wet snow. In all likelihood, roads and sidewalks will just be wet for the very start of the afternoon/evening commute, but, after about 4 or 5 p.m. (essentially, as it GETS DARK), the snow should begin to stick
to most non-paved and even some paved surfaces.
The City of Baltimore will probably only get a coating to as much as an inch before midnight. However, Anne Arundel County, as well as much of southern Maryland and the Eastern Shore, (these are areas which will be in closer proximity to where the wave will be tracking) will probably see as much as 3 or even 4 inches of “wet slop” before the precipitation comes to an end late Thursday evening.
Dry and colder weather will prevail Friday, and the upcoming weekend should be milder before another colder surge of air occurs Sunday night into Monday… Have a good day!!!