Open Snow has some insane totals forecast for Friday. Next ten days:
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AREA FORECAST DISCUSSION
National Weather Service Albany NY
1046 AM EST Sun Jan 30 2022
.SYNOPSIS...
A sunny Sunday is ahead albeit chilly with below normal
temperatures still in place and continued breezy winds will make it
feel even colder. After a dry and seasonable start to the week,
temperatures will moderate with
above normal by Wednesday and
Thursday. Fair weather through early in the week as high pressure
dominates then the weather turns unsettled. A front is expected to
stall across the region late in the week as a wave of low pressure
moves along it bringing
widespread precipitation to the area.
&&
.LONG TERM /WEDNESDAY THROUGH SATURDAY/...
The focus of the long term period will be a high signal for an
impactful weather system to affect us mainly during the Thursday and
Friday time frame. All precipitation types will be on the table with
this event.
What makes this system potentially impactful are the
similar signals
from all model guidance. Sufficient moisture will advect in from the
Gulf of Mexico into this system with NAEFS mean Integrated Water
Vapor Transport (IVT) and Precipitable Water (PW) 2 to 4 standard
deviations above normal. In addition, the track of the surface low
as well as our region will be located within the right entrance
region of a very strong upper-level jet (possibly 160-200+ kts) and
very strong southwesterly mid-level flow. This should result in
sufficient
precipitation (moderate to perhaps heavy) progressing
across our region.
The main challenge with this forecast will be the
position of the
front and the surface low and this
will be the determining factor
regarding which precipitation types will occur and where (as the low
will be the dividing line between plain rain to the south/east and
snow/ice north/west). As expected, there are differences in the
models on this. To start,
rain or a rain snow mix is likely to occur
Wednesday night into a part of Thursday along the initial cold
front. As the second surface low approaches, a strong, arctic high
will build in across the central US as well as to our north into
southeastern Canada. This will gradually increase the advection of
low-level cold air farther south and eastward while the air aloft
likely remains warmer and possibly above freezing in spots until the
passage of the surface low and front cools the air aloft. Therefore,
areas of snow, ice and rain are all on the table Thursday into
Friday from north to south. As this system and precipitation is
expected to track closely parallel to the mid-level flow, this could
result in prolonged periods of rain, snow and ice training across
the same areas.
Again, the track of the low varies amongst the deterministic
guidance and ensembles. A general compromise of the guidance and
ensembles at this time suggests the main
low tracks near or just to
the south and east of Albany (possibly close to the I-95 corridor).
If this occurs, more snow and ice would likely occur across the
region than rain. However, a track more north and west would result
in more rain and less snow and ice.
Trends as of late are indicating
a possible colder solution, but we are still several days out until
this event unfolds. Also, it is still way too soon for a first guess
with snow and/or ice amounts at this time, though latest WPC
probabilities of exceeding a quarter of an inch frozen precipitation
is 30-70 percent for areas north and west of Albany.