NWS ALY
.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
Active winter weather expected to return on Saturday, as a primary
cyclone is forecast to track from the Midwest to the lower Great
Lakes. Southerly flow and isentropic lift will increase in our area
ahead of the eastward advancing cyclone. Model guidance in fairly
good agreement with regards to the track/intensity of this system.
There is increasing probability for a moderate to heavy snowfall
across much if not the entire region, as both 12Z deterministic and
ensemble guidance support this trend. Guidance indicating a Miller
Type B system, with a secondary coastal cyclone developing Saturday
night near SE New England. At this time it appears most of the
precip in our area would be from the primary cyclone. With the
southerly flow regime at 925-850 mb, local research indicates the
maximum snowfall to set up across the southern Adirondacks, the
Glens Falls/Saratoga region and the southern Greens of VT. While
thermal profiles have shown a cooling trend, there could still be a
chance of mixing for areas SE of Albany Saturday night as thermal
profiles become borderline as the primary cyclone tracks just north
and west of our area. Still too early for specific snow accumulation
numbers, but will mention possibility of moderate to heavy snowfall
in the Hazardous Weather Outlook.
On Sunday, the storm is forecast to consolidate and deepen east of
Cape Cod. While widespread snow should be ending for our area, lake
effect and upslope snow showers will be possible in favored spots,
with cold/windy conditions for the rest of the area. An upper level
trough with a NW flow regime is expected to become established
Sunday night into Monday, resulting in continued chances for snow
showers across the mountains and lake effect areas with below normal
temperatures and breezy conditions across the entire area. Winter
looks be settling back in after a lengthy reprieve.
"You just need to go at that shit wide open, hang on, and own it." —Camp