It`s still anticipated that as the weakening area of low pressure
pushes toward WV/western PA on Monday, it will give way to a
developing coastal low somewhere off the VA/Delmarva coast. Model
discrepancies continue as to just if/how this system may impact our
area. As of the 27/12Z guidance package, all models are in good
agreement that a rapidly intensifying nor`easter will develop just
off the coast at the start of the work week, then move in a
northeasterly direction. The question is...does it hug the New
England coast or stay further east into the Atlantic. The same area
of high pressure mentioned just above will have say in this as well.
Separating things out, the 27/12Z Canadian and GFS keep more
influence from the large area of Canadian high pressure locked in
across our area, keeping the bulk of the precip to our east and
southeast as the low stays further off the coast, with just some
weak northerly flow snow showers south of Lake Ontario through mid
week. Meanwhile, the 12Z ECMWF weakens the Canadian high and allows
it to retreat a bit further north. This would allow for slower
tracking storm system that hugs the New England coast, throwing
Atlantic moisture back across our region Tuesday and possibly
lingering into Wednesday in the form of snow. Putting it all
together, still a high degree of uncertainty as to how exactly this
scenario will evolve. Will elect to go with SChc/Chc PoPs due to a
low confidence forecast with this system at this time, with the best
chance of snow east of Lake Ontario closer to the storm. This one
will need to be watched closely as there seems to be a more
northerly/northwesterly track to many of the systems depicted in the
long range so far this winter season. Stay tuned.
I thought the Euro was the Southern outlier, so now that has switched? I must be confused, lol!
KBUF definitely doesn't sound too enthused about the Thurs-Sat time frame as they call the Lake Snows a nuisance, lol!