yawn...never was a big believer in this system Here is the new Mt Holly snow map...precip will break out tomorrow morning...and we could luck out and it breaks out after the morning rush. I would watch for any time changes with the start before you head out tomorrow morning
Going to start out as a period of snow for most of us except the shore and south jersey with some mixing of sleet and freezing rain and then a change to all rain in the afternoon. Around the I 95 corridor its looking like an inch or less of slushy stuff...north of 78 you start to get into the 1-3 amounts and then 3-5 inch amounts possible north of 80 and the usual spots in NW NJ. Start time looks anywhere from 7AM -10AM...hopefully it gets pushed later and that would then minimize any
rush hour impact
High pressure briefly re-establishes itself this evening before
retreating to the north and east overnight as the next system
approaches. This next system will be a fairly
moisture laden low
that will move from eastern Texas north and east to a position
near eastern Tennessee by Wednesday morning. Clouds will thicken
up overnight ahead of this system and its associated warm
front
meaning once again lows may occur early before temps nudge up
overnight. Generally looking at lows in the 20s to low 30s
except upper teens across the southern Poconos. There are some
model differences regarding the details of exactly when precip
arrives but this generally looks to occur near 12z Wednesday so
we begin to ramp up
POPs near
dawn. Track of low will favor
mixed precipitation (snow, sleet, freezing rain) initially
developing near the I-95 corridor with mainly rain farther south
and east and mainly snow to start north and west. Bulk of the
event occurs during Wednesday so for further details, please see
below.
&&
.LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/...
The focus for the long term is on two storm systems that are
expected to bring widespread moderate precip to the region with
the first round on Wednesday and the second round late in the
weekend.
Wednesday and Wednesday night...The first low is expected to
track to the NE along a warm
front, eventually passing through
the northern Mid-Atlantic states Wednesday afternoon-evening.
Models have converged toward an I-95 storm track across our
area, which signals a general wintry mix as well as introduces a
plethora of ptype questions given the complexity of the setup.
The pattern is not too dissimilar to what we saw on Sunday
although the
air mass leading up to the next event looks to be
initially colder. Accordingly, precip will
likely begin as snow
near and north of the Mason-Dixon line before warmer air aloft
moves in and causes a changeover to sleet/freezing and
eventually to rain. The transition to a wintry mix and then to
rain will
likely occur rather quickly Wednesday morning in the
coastal plain and I-95 corridor. Even though snow and ice
accumulations are currently forecast to be minor for the I-95
corridor, the timing of the wintry mix being coincident with the
morning commute could maximize travel impacts. After the
transition to rain occurs later Wednesday morning,
rainfall
amounts of one-half to one inch through Wednesday evening could
potential cause minor, poor-drainage flooding.
The potential to see a longer duration of snow, sleet and
freezing (as well as higher accumulations) increase quickly the
farther N/W you travel given the most
likely track of the 850
mb
and surface lows. The greatest forecast uncertainty lies in the
area from roughly the
Fall Line, northward to the I-80
corridor, where any small shifts in the track from the current
forecast could yield significant changes to the forecast (ptype
and snow/ice accumulations). There is a Winter Storm
Watch for
our far northern counties along/north of I-80 and west of I-287
(Carbon and Monroe Counties in NE PA and for Sussex County in
far NW NJ) with at least the potential for 4-7 inches of
snow/sleet and around one tenth inch of ice.
https://www.weather.gov/phi/winter