Updated the thread title to include Friday's round 2 in this thread, since impacts should be somewhat less, meaning I'd expect a fair amount less posting on the storm, so I didn't bother with a new thread.
@e5fdny may have to send his goons after me, lol.
Will start a snowstorm threat thread for next Tuesday if today's models continue to be somewhat bullish for accumulating snow, as is the NWS, as per their discussion this morning, below. The Euro has been consistently showing a moderate to significant snowfall, while the GFS/CMC have been bouncing around with wildly changing solutions (some with snow, some not). The biggest question this time might not be snow vs. rain, but high pressure suppression forcing the storm well to our south. Still 5 days out so many questions...
Looking towards the beginning of the week guidance is showing a
deep 250mb trough swinging through the central US. This sends a
strong 250mb jet over the region and guidance has shown the
potential for some weak cyclogensis to our south. The consensus
amongst guidance is that a low pressure system will form to our
south and stays to the south as it moves towards the northeast.
This keeps the forecast area entirely in the cold sector of the
system and in the right rear quad of the 250mb jet. That should
lead to broad synoptic lift and with moisture in place we may
see accumulating snow across the region. Based on the 18z
ensembles that went into the 01z NBM, the nearly the entire
forecast area has 50% chance of exceeding 1" of snow and given
the area would be in the cold sector there would be no immediate
rainfall to melt the snow. At this point limiting factors would
be the speed of the system rather than thermal profiles.