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Upstate/Eastern New York-Pattern Change Vs Tughill Curse?


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Looks like they updated the Forecast discussion

Mid-level trough and sfc low will approach the eastern Great Lakes
on Wednesday. 12/02 guidance suggests that the main cold front will
cross the area with little fan fair Wednesday morning (not much
precipitation). However, as the aforementioned low draws near Lake
Huron by days end a secondary sharper front is advertised to plow
east across Western NY. Much colder air, to the tune of -14C/-16C at
H850 is advertised under cyclonic SW flow to then channel up Lake
Erie. This will likely induce a lake response beginning first off
Erie and then the same will occur a bit later off Lake Ontario.
BUFKIT profiles suggest that there will likely be sufficient
moisture extending through most of the DGZ along with equilibrium
levels in the neighborhood of 6-7K feet. One other thing to note, it
will become quite windy with gust up to 40 mph, especially NE of the
lakes through Wednesday evening. At this point, confident enough
that there will likely be accumulating lake snows ENE of the Lakes
beginning Wednesday evening into Thursday to mention it in the HWO.
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Just revisiting the 12z Euro, it looks like the primary piece of energy for this storm starts coming ashore in the Pac NW Tuesday Evening and doesn't fully come onshore until Wednesday morning. And then hauls ass SE once fully in the flow. So there could be a lot of volatility in the models even within the 48hr timeframe.

Screenshot_20220102-225346_Chrome.thumb.jpg.618b7513a8ed72ced58baec0460b3454.jpgScreenshot_20220102-225205_Chrome.thumb.jpg.04f75c247dd8a76f027f4fa78dd1e509.jpg

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32 minutes ago, SouthBuffaloSteve said:

CIPS dropping lots of good analogs.  6 out of 15 were decent LES event for Buffalo Metro.  Not pictured I found write ups in the book on Dec 83 which saw 1'+ in the city upto 4' in the south towns and Dec 79 that brought 20" to BUF in 24 hours and close to 3' in Depew.   

cips.png

cipsmatch.png

I was looking at that one in 79 had to go look at the book to find it.

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1 hour ago, tim123 said:

Wouldn't that flow take band well south of city

Many times in early season events the winds can be out of the west and the band can go pretty far north. This is due to thermal troughing in addition to convergent winds with land interaction. Check out this loop from Nov 2014, winds were out of the west, but look at the shape of the band. This happens quite a bit in LES events off of Erie.

 

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