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Upstate/Eastern New York


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7 minutes ago, wolfie09 said:

Yeah tough call tonight..Winds look to be WNW/NW Over the lake but west/WSW over land trying to push these bands north lol

As usual we have 2 camps, RGEM, NMM and HI rez Canadian who like Central Oswego vs HRRR, ARW, NSSl who like southern Oswego, northern cayuga lol Pretty much nowcasting time anyway..

That's my snow forcefield...

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8 minutes ago, wolfie09 said:

Yeah tough call tonight..Winds look to be WNW/NW Over the lake but west/WSW over land trying to push these bands north lol

As usual we have 2 camps, RGEM, NMM and HI rez Canadian who like Central Oswego vs HRRR, ARW, NSSl who like southern Oswego, northern cayuga lol Pretty much nowcasting time anyway..

When KBUF issues WWA for No Cayuga,Wayne and Oswego (mainly Southern) counties, then I'm a bit more confident of at least something coming to fruition but they too can be wrong so we'll see real soon, lol!

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1 minute ago, CNY-LES FREAK said:

When KBUF issues WWA for No Cayuga,Wayne and Oswego (mainly Southern) then I'm a bit more confident of at least something coming to fruition but they too can be wrong so we'll see real soon, lol!

And once again BGM is ignoring northern Onondaga County. 

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NWS morning AFD..

Overall system moves through fairly quickly with a rather short
period of fairly steady snow. Model liquid equivalent not overly
impressive coming in near or just shy of 0.10 inches. Likely looking
at snow-water ratios in the 18/20:1 range, so a nice fluffy snow
with most accumulations limited to 1-2 inches. Could be a bit of
lake enhancement east of the lakes, so perhaps some localized higher
amounts near 3 inches for the higher terrain east of the lakes
(Boston Hills, Chautauqua Ridge, and Tug Hill). Accumulations will
be an inch or less for the Genesee Valley, western Finger Lakes, and
Black River Valley.

Wind speeds picking up this afternoon in wake of the cold front with
gusts of 25-30 mph. With the fresh snow, may see some blowing and
drifting snow in open areas.

The reinforcing shot of cold air behind the front will steepen low-
level lapse rates through the dentritic growth zone which will
develop lake effect snows east of the lakes as we move into tonight.

Hi-res guidance not overly impressed with the activity developing
off Lake Erie which seems reasonable considering reduced inversion
heights near 5kft, limiting accumulation potential there. Inversion
heights better east of Lake Ontario closer to 8kft which likely will
support a period of accumulating lake snows within a 280-ish
low level flow, targeting northern Wayne through Oswego county with
several inches possible before Monday morning. Winter Weather
Advisory posted for this area as outlined below.

Quite cold areawide tonight with wind chills below zero.

&&

.SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/...
The lake effect snow that developed Sunday night will continue on
into Monday. Of the two plumes off of each lake, the lake snows off
of Lake Ontario will be more impressive. This is due to the fact
that ridging will work its way east, impacting Lake Erie first. As
the surface high works its way over the region further, its
associated warm air advection will act to lower the inversion
heights, diminishing the lake response. Expect the lake response off
of Lake Erie to deplete by mid morning on Monday. On the contrary,
the effects of the ridging won`t impact the Lake Ontario band until
Monday afternoon, which will allow for an additional couple of
inches to fall southeast of Lake Ontario Monday morning.

Meanwhile, a subtle shortwave will round the closed low over
Northern Manitoba and Ontario, which will push an area of low
pressure across the region Monday night into Tuesday. As the low
crosses overhead, expect widespread light snow across the region.
Snow should start over southwestern NY late Monday evening and
continue through Tuesday afternoon (especially for the eastern
portions of the region). Model guidance has begun to agree with the
tracking of this system, crossing the the low to the south of the
region and then strengthening off the east coast, before traveling
northeast. However during its time off the east coast models begin
to differ on how fast the low will depart north. The longer the low
sticks around, the more time the western shield of precipitation
falls over the eastern portions of the region. As of now, a general
1 to 2 inches is possible for most of the region, with 2 to 4 inches
possible along the eastern counties of the forecast area.

As the synoptic snows come to an end Tuesday night, a northwest wind
and leftover moisture from the departing system will allow for some
lake enhancement southeast of both Lakes Erie and Ontario. Though
the better chances for lake enhancement appear off of Lake Ontario.
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