Ensembles are all pointing to a near 40/70 track. Perfect strong high placement to the north. It's possible it can go either way, id lean towards more offshore though. Right now it appears to be mainly a white event not rain. What exactly is pointing to most likely being all rain at the coast and mix inland with possibly light snow at the very end? That's almost ridiculous to say. Terrible AFD long term write up imo.
BOX on the other hand, doesn't seem to be sniffing glue this morning.
Way more reasonable for the overall view of things.
Still a considerable amount of uncertainty in this timeframe. Not
too much of a change from the previous shift where the EPS/GEFS
shows clustering of surface lows near the benchmark. Still too early
to latch onto things given there still is a decent amount of spread
amongst ensemble and deterministic guidance. The operational GFS/CMC
do show impacts from the system, but more of a glancing blow in
comparison to the operational EC. Does appear that colder air should
be aided in being locked in with a surface high in place over
Quebec. Right now models show 925 hPa temperature ranging from 0 to -
15 degree Celsius. Given the uncertainty this far out have kept with
the NBM guidance and capped at high chance PoPs. Still much too
early for specifics. If a coastal storm pans out there could be some
coastal flooding concerns given the high astro tides and strong wind
gusts. Could also have significant snowfall, but really need to hone
in on specific details which are impossible to discern this far
out. Stay tuned for future updates.