Mesoscale Discussion 2147
   NWS Storm Prediction Center Norman OK
   0103 AM CST Tue Nov 12 2019

   Areas affected...portions of central and northern NY into far
   northwest VT

   Concerning...Heavy snow 

   Valid 120703Z - 121200Z

   SUMMARY...Moderate to heavy snowfall is expected through the early
   morning hours across parts of central and northern NY into far
   northwest VT.

   DISCUSSION...Light to moderate snow is currently falling across the
   Mohawk Valley vicinity to the Adirondack Mountains and far northwest
   VT. Increasing forcing for ascent ahead of the Great Lakes trough
   and strong frontogenesis in the 850-700 mb layer will be the primary
   drivers of snowfall rates through the early morning hours. Lower
   elevations could see rates approaching 1 in/hr in heaviest snow
   bands. Over the last hour or so, evidence of terrain enhanced
   snowfall rates has been evident on the KTYX radar from eastern
   Oneida to Hamilton Counties. This could result in some locations in
   the vicinity of the Adirondack Mountains seeing greater snowfall
   rates (1+ in/hr at times) where upslope flow further enhances lift
   through the dendritic growth layer. 

   By 11-13z, forecast RAP soundings and deterministic guidance shows
   influence of warm conveyor belt processes shifting east of the area
   and snowfall rates should diminish toward sunrise.

   ..Leitman.. 11/12/2019

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...BTV...ALY...BGM...BUF...

   LAT...LON   42867480 42737519 42717549 42917590 43277608 43617603
               44107599 44617569 45057503 45207444 45237306 45127268
               44917267 44487297 43817349 43227414 42867480