Based on tonight's 12Z models, for the Saturday event, the models generally shifted southward with the precip, such that only the CMC brings 1-2" of snow to the Philly-NYC corridor (and 2-4" S of 276/195), with the Euro, FV3, and GFS all confining measurable snow to south of Balt-AC, so definitely not thread worthy, even for most Philly/SNJ folks For the Sunday night/early Monday event, things look slightly better for north of 195/276, as the GFS has an inch or so generally N of 195/276, the FV3 has <1" N of that line, and the CMC has 1-3" N of 276/195, while the Euro has nada, so also not thread-worthy IMO, since it's still 4+ days out.
I think we're almost out of time for the Saturday event to be meaningful north of Philly-Toms River (unless the CMC scores a major unexpected coup) and the Sun/Mon event looks minor, but this winter snow lovers would kill for minor. Next Wednesday is looking better for snow (and maybe mixed precip) for our area, than Sat/Mon, but things often look better 6-7 days out. For now, it's just easier to monitor in this thread, IMO and start a new thread only if something more significant pops up. NWS discussion below.
National Weather Service Mount Holly NJ
337 AM EST Thu Feb 14 2019
LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
Saturday and Saturday night: This is the period where the broad mid
and
upper level ridge should begin to set up over the Caribbean.
With the exception of the CMC, most operational models had a
noticeable shift south the track of the low on Saturday which should
develop along the
front (now south of the region). Consequently,
most guidance keeps precipitation within our region confined to
Delmarva and far southern Jersey. Even in these locations,
potentially being on the northern fringe of the precipitation shield
of this system, any precipitation should be light. As for
precipitation type, model soundings do depict a low level warm layer
for part of the event, but it doesn`t look deep or warm enough to
see significant melting of
ice crystals. Thus, expect this to be
strictly a snow/rain event. However, even if it is all snow, snow
amounts would
likely be less than an inch, so impacts with this
system should be minor.
Sunday through Monday: As the caribbean
ridge builds, the track of
subsequent low pressure systems should shift further north. Thus,
with the next system Sunday night into Monday, the center of the low
could be considerably closer to our region (although still south) as
compared to the Saturday system. Therefore, there is at least a
chance of precipitation across the entire region with this system,
primarily on Sunday night.
Tuesday and Wednesday: Both the
GFS and
ECMWF depict a warm
front
lifting north as a low develops along the
front through this period.
While the warm
front may not get north of the entire region, both of
these models have it far enough north to bring another chance for
precipitation across the region. Precipitation type will be highly
dependent on the location and evolution of the warm
front.