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Upstate/Eastern New York


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1 hour ago, TugHillMatt said:

Binghamton certainly didn't. Winter Weather Advisory for Onondaga for 2 to 5 inches and a mix. They included us with all the counties in their PA viewing area. lol

 

Just go with KBGM's 90% probability map. It's usually closer to reality this season.  They have us flipping to rain/snow mix Saturday night. The warm tongue will not be denied. ;) pencil in 4-5"  total. Might get an extra inch or two of LES scraps but that's usually a crapshoot here.

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7 minutes ago, Syrmax said:

Just go with KBGM's 90% probability map. It's usually closer to reality this season.  They have us flipping to rain/snow mix Saturday night. The warm tongue will not be denied. ;) pencil in 4-5"  total. Might get an extra inch or two of LES scraps but that's usually a crapshoot here.

I feel like the lake enhanced and LES has been underestimated- as we are getting closer the models seem to be picking up on it. Could be 3” of scraps. ;)

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What ppl need to understand about these HP's are that they are from a much different source region then those from the Pacific. If an Arctic HP which originates over Alberta or anywhere in any province in Canada wants to slide its ass over the MA, that's fine cause the air with them doesn't have modified Pacific air with them, lol, rather the air is frigid so it can do or go wherever it wants to go, lol!

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Tbh, I know most models have it headed to our NW but we usually see the warmth head right up the finger Lakes and downslope off the bumps in Cortland county and in turn we warm but this is a much different scenario and if we mix I dont think it'll be for very long. Imo, we don't mix at all cause it's not gonna be a screaming LLJ out of the SW or SE but we'll see I suppose. That cut off between Onondaga and Oswego counties is hilarious to me, lol! It'll either stay much further South or go way North of us as it's not gonna straddle the county lines like most guidance is showing.

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20 minutes ago, CNY-LES FREAK said:

Tbh, I know most models have it headed to our NW but we usually see the warmth head right up the finger Lakes and downslope off the bumps in Cortland county and in turn we warm but this is a much different scenario and if we mix I dont think it'll be for very long. Imo, we don't mix at all cause it's not gonna be a screaming LLJ out of the SW or SE but we'll see I suppose. That cut off between Onondaga and Oswego counties is hilarious to me, lol! It'll either stay much further South or go way North of us as it's not gonna straddle the county lines like most guidance is showing.

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I agree. That’s odd placement. Either north or south. 50/50. Looks like this might come in a tick colder than I originally thought. A bit different than the last couple. We shall see. GFS consistency is remarkable with precip. 
You north country guys looking pretty good all around. We’ve built a 2-3” base here in Rochester. Starting to look like winter. 

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With a setup like this, that SLP thats developing in E.CO would end up over GB WI if the same pattern was present but this SLP is hitting a brick wall that stretches from S. Alberta all the way to the SE, yes sort of like a banana HP but not quite.

My guess is this SLP heads slowly ENE towards Iowa, Illinois and Indiana and then slows big time cause it has no choice due to the monstrous SHP situated right smack over the NE as you can clearly see the CAD happening all across the Carolinas.

If this was a traditional Cutter, like some like to call them all that head to our North & West but this SLP will fail to head to our NW as I think it will instead head East across extreme SO NYS or No. PA, thats my call and I'm sticking to it, lol, but I may be wrong but no way are we getting above freezing tomorrow or anytime during this event.  If we mix its because of the mid lvl SLP's and not the Surface one!

The one place that may be easier to get past freezing would be extreme WNY and even they might not reach freezing either.  The models don't have a good handle at all on this one so anything can happen, and I mean anything, lol!  Even NYC has a good chance at some good front end thumping cause the HP over the NE means business!

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The most widespread snow will occur Saturday within the warm
advection regime ahead of the system. A broad area of strong
isentropic ascent will produce a 4-6 hour period of steady
precipitation, developing in the morning across Western NY and
reaching the eastern Lake Ontario region by early afternoon. Across
Western NY, model guidance continues to suggest enough of a warm
layer aloft to support the chance of some sleet mixing in briefly
from late morning through mid afternoon. If sleet lasts for an
extended period of time, it would bring down snow accumulations. By
late in the afternoon, surface temperatures may become warm enough
to change the snow to rain close to the Lake Erie shore, with
southerly downslope winds warming temperatures into the mid to upper
30s. Farther east, precip type will remain all snow from about Wayne
County eastward.

Snow accumulations through early Saturday evening will generally run
2-4 inches, perhaps a little higher across the southern Tug Hill as
southerly upslope flow develops.

Saturday night the widespread precipitation will taper off across
Western NY as a mid level dry slot moves into the area. This will
produce a relative lull in precipitation coverage and amounts
through most of Saturday night. Temperatures will also be above
freezing for a time Saturday night, yielding a rain/snow mix across
Western NY at lower elevations. Later Saturday night colder air will
move back into Western NY, changing everything back to snow. The
airmass will also become cold enough to begin lake enhancement
across the higher terrain east of Lake Erie late Saturday night,
with snowfall rates picking up across the Chautauqua Ridge and
Boston Hills late. Additional accumulations Saturday night will
range from a few inches across the higher terrain east of Lake Erie,
to little or nothing at lower elevations.

Meanwhile, east of Lake Ontario there will be less of a mid level
dry slot, so there will be less of a break in precipitation Saturday
night. Expect periods of snow to continue, especially across the Tug
Hill supported by continued upslope flow. This will support
additional accumulations of a few inches at lower elevations, and 3-
6 inches across the Tug Hill Plateau.

Sunday cold air will pour back into the eastern Great Lakes in the
wake of the low. Boundary layer flow will be westerly most of the
day, targeting areas east of the lakes with heavy lake enhanced
snow. Lake induced equilibrium levels will climb to around 10K feet
by late in the day as cold air deepens. Outside of the main lake
effect areas, snow will be relatively light with minor
accumulations.

East of Lake Ontario, it won`t be pure lake effect, but rather lake
enhanced upslope flow supporting the potential for heavy snow across
the Tug Hill Plateau. This may produce additional accumulations of
up to 5-7 inches across the Tug Hill, and a few inches at lower
elevations. Later Sunday afternoon and evening boundary layer flow
will begin to veer more northwesterly, diminishing the influence of
lake enhancement across the Tug Hill.

East of Lake Erie, it will be a little more of a pure lake effect
setup with less synoptic scale moisture and ascent. Deepening
instability and upslope flow should support persistent moderate snow
across the Chautauqua Ridge, Boston Hills, and hills of Wyoming
County Sunday, and continuing Sunday night for that matter.
Additional accumulations during the day Sunday of 5-7 inches are
possible, with more Sunday night.

Total accumulations from Saturday through late Sunday night will be
highest across the higher terrain east of the lakes. East of Lake
Erie, the Chautauqua Ridge, Boston Hills, and hills of Wyoming
County may see 12-18 inches total. The Tug Hill Plateau will see 12-
18 inches as well, with 7-10 inches for the surrounding lower
elevations east of Lake Ontario. The Buffalo area should see 4-6
inches total over the entire weekend, but this will come in two
batches with some melting between. Rochester may see 4-7 inches
total in several batches with some melting between. The lowest snow
amounts will be across Allegany County and the western Finger Lakes
with little in the way of lake enhanced snow reaching these areas
Sunday.

As far as headlines go, issued a Winter Storm Warning east of Lake
Ontario where the most widespread heavy snow will occur. Issued a
Winter Weather Advisory for the rest of the area for Saturday
through portions of Saturday night and Sunday morning. Also issued a
Winter Storm Watch for the higher terrain east of Lake Erie for late
Saturday night through early Monday morning for lake effect snow.
Note, we are handling the potential for wind gusts to 50 mph within
the winter weather advisories and warnings instead of issuing
separate wind advisory headlines
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Where the heck is Bing. getting all this "rain" they have in the forecast for Onondaga tomorrow night???
They are obviously not impressed with this system.
If it rains anywhere in Onondaga County tomorrow morning afternoon or night, ill streak down RT 31 naked right across the bridge that goes over 481, RLMAO!!

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Just now, CNY-LES FREAK said:

If it rains anywhere in Onondaga County tomorrow morning afternoon or night, ill streak down RT 31 naked right across the bridge that goes over 481, RLMAO!!

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Bahaha! That section is chaotic enough. We don't need your body distracting all the drivers...................

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Just now, wolfie09 said:

Gfs shows some rain even north of me lol But majority of the precip is finished..

Both bgm and buf have temps warming around 2am, into the mid 30s..

What's odd is they don't have temps getting higher than the lower 30s. For my location, it doesn't get above freezing.

 

However, with howling winds from the....SOUTH...I can easily see where they're coming from. Just another kick in the nads from this bloody winter.

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Just now, TugHillMatt said:

What's odd is they don't have temps getting higher than the lower 30s. For my location, it doesn't get above freezing.

 

However, with howling winds from the....SOUTH...I can easily see where they're coming from. Just another kick in the nads from this bloody winter.

Lol temps in the 20s but a rain and snow mix? Doesn't make sense haha..

Even I'm forecasted 33° overnight..

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