Starting to look like warning level snowfall is possible for me PSUhoffman and my fellow northern tier friends
I think it’s safe to say an ALL snow event is not happening, however we could still very easily see the low track in a manner where we see a solid 4-6” thump before we go to ice and are dryslotted. In fact, analogs for similar storms and setups at h5 point to the fact that that outcome is quite possible.
We need the storm to dig and strengthen far enough south so its able to tap into an ample moisture source, but far enough north / weak enough to not pump a ton of warm air into our neck of the woods. A tight rope to walk, but we are seeing the overall trends we want to be seeing at this point to achieve just that
Many are focusing on the stubborn CAD in place from a 1040 H to our north and how cold it'll be leading up. Rightfully so. However, remember that it is not surface temps that will determine when we change over to slop or rain. It can be 33 and heavily snowing, and it can be 19 out with sleet or freezing rain. What we need to worry about is the surge of warm air between the 700-900 levels.
Going to be blunt here. Think there’s going to be a huge gradient in snowfall between DC and Baltimore. Points SE of DC may only see snow TV, while points NW of BAL see upwards of 6”. We will have a solid idea of where this boundary will setup by 00z Thursday. Until then, models will continue to waffle. Important that we stick to the trends and don’t jump off the ledge from run to run. Dissecting surface temp / QPF total specifics 3+’days out is a waste of time and energy. We’ll get into that in the short term. Let’s just keep rooting for the snowier trend to continue for now!