Storm Prediction Center Mesoscale Discussion 35

   Mesoscale Discussion 0035
   NWS Storm Prediction Center Norman OK
   1245 PM CST Mon Jan 13 2025

   Areas affected...south-central New York into far northern
   Pennsylvania

   Concerning...Snow Squall 

   Valid 131845Z - 132045Z

   SUMMARY...Snow squall activity will be possible through the
   afternoon diminishing through the evening.

   DISCUSSION...Radar across southern New York state this afternoon
   shows several snow showers moving eastward along a surface cold
   front. A few of these showers have had brief increase in intensity,
   with visibility reductions to 1/2 mile reported. The thermal
   environment is characterized by somewhat poor low-level lapse rates,
   owing to cloud cover across the region. However, surface objective
   analysis does indicated some 2-6 AGL lapse rates around 7 C/km right
   along the front. The occasional snow squall will be possible, with
   sudden visibility reductions to less than 1/4 miles and gusty winds.
   This threat will subside with passage of the front, and as sunset
   approaches with loss of daytime heating.

   ..Thornton.. 01/13/2025

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

   ATTN...WFO...ALY...BGM...

   LAT...LON   41797556 41917594 42007578 42267538 42667507 43117482
               43217453 43177422 42897405 42717413 42367439 42097457
               41877496 41797556