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GL/MW/OV December 2010 disco thread


snowstormcanuck

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post-175-0-96086100-1291218089.jpg

Near dry-adiabatic lapse rate in the low levels

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Shallow cloud layer entirely located within the dendritic growth zone

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Little to no wind shear

=

Nice, fluffy, dendritic snow.

There's actually a bit of saturation and UVV aloft progged for a few hours later this morning and early afternoon, and that low level layer remains saturated through most of the daylight hours, so wouldn't be surprised to see a couple more bouts (or simply a continuance) of this light snow for a while.

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I was noticing something interesting in Buffalo this morning.

Although the highlight is lake effect snow, they're actually seeing heavy SYNOPTIC snow right now (lake effect hasn't even kicked in yet).

http://forecast.weat...n&FcstType=text

Greater Buffalo International Airport

Lat: 42.94 Lon: -78.73 Elev: 712

Last Update on Dec 1, 10:54 am EST

Heavy Snow Fog

32 °F

Visibility: 0.13 mi.

centgrtlakes_loop.gif

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mcd2110.gif

http://www.spc.noaa.gov/products/md/md2110.html

MESOSCALE DISCUSSION 2110

NWS STORM PREDICTION CENTER NORMAN OK

0952 AM CST WED DEC 01 2010

AREAS AFFECTED...WESTERN/CENTRAL NY AND NORTH-CENTRAL PA

CONCERNING...WINTER MIXED PRECIPITATION

VALID 011552Z - 011945Z

A RELATIVELY QUICK CHANGE OVER TO SNOW SHOULD OCCUR ACROSS

WESTERN-CENTRAL NY AND NORTH-CENTRAL PA THROUGH EARLY/MID AFTERNOON.

A 1-2 HR PERIOD OF MODERATE/PERHAPS HEAVY SNOW IS POSSIBLE.

STEADY COLD ADVECTION WITH A CHANGEOVER TO SNOW WILL CONTINUE TO

OCCUR ON THE BACK EDGE /ROUGHLY 25-50 MILES/ OF A NORTH-SOUTH

ORIENTED CORRIDOR OF PRECIPITATION ONGOING ACROSS PORTIONS OF PA/NY

INTO SOUTHERN NEW ENGLAND. WHILE THERMAL PROFILES ARE MARGINAL /E.G.

12Z BUFFALO OBSERVED RAOB/...OBSERVATIONAL TRENDS COINCIDENT WITH

SHORT TERM RUC/HRRR GUIDANCE SUGGEST THERMODYNAMIC PROFILES...WITH

SURFACE TEMPERATURES QUICKLY FALLING TO AT/JUST UNDER 32F AND A DEEP

NEARLY ISOTHERMAL SUB-FREEZING LAYER ABOVE THE SURFACE...WILL BE

FAVORABLE FOR A RELATIVELY BRIEF BOUT/NARROW CORRIDOR OF MODERATE TO

PERHAPS BRIEFLY HEAVY SNOW INTO THE AFTERNOON.

..GUYER.. 12/01/2010

ATTN...WFO...BGM...BUF...CTP...

LAT...LON 42057865 42967835 43337580 41097666 40867768 42057865

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Rain started mixing with snow around 10am here ( 90 miles north-east of Toronto) and has been snowing at a decent rate for the last 90 minutes or so . Close to 2" / 5cm down so far ....

I'm hoping that's headed my way! Temperature has been falling in Ottawa for the past hour. I just hope it gets cold enough for snow before the precip moves out

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:lmao: typical college kids :)

No reason to wake up earlier :P

Radar indicates snow showers are breaking out to the north in central WI. Looks like they'll mostly miss Madison to the east, but Milwaukee and Chicago may benefit.

Lots of vort maxes rounding the bigger trough are causing this fairly random snow, who knows what'll happen next :popcorn:

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No reason to wake up earlier :P

Radar indicates snow showers are breaking out to the north in central WI. Looks like they'll mostly miss Madison to the east, but Milwaukee and Chicago may benefit.

Lots of vort maxes rounding the bigger trough are causing this fairly random snow, who knows what'll happen next :popcorn:

Sounds like me when I have to work and don't see the need to get up at 10am for a 4pm shift

As for the random vorts, I would be much happier with a big vort coming down and depositing a foot of snow. :)

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