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   MSGID: 168468.weather@1:2320/105 2dcb87b6   
   PID: Synchronet 3.21a-Linux master/123f2d28a Jul 12 2025 GCC 12.2.0   
   TID: SBBSecho 3.28-Linux master/123f2d28a Jul 12 2025 GCC 12.2.0   
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   ACUS11 KWNS 111519   
   SWOMCD   
   SPC MCD 111519=20   
   NYZ000-PAZ000-MDZ000-WVZ000-112015-   
      
   Mesoscale Discussion 0021   
   NWS Storm Prediction Center Norman OK   
   0919 AM CST Sun Jan 11 2026   
      
   Areas affected...Parts of southwestern/south-central   
   NY...western/central PA...and far northern WV and western MD   
      
   Concerning...Snow Squall=20   
      
   Valid 111519Z - 112015Z   
      
   SUMMARY...Periodic snow squalls with bursts of heavy snow and   
   visibility reductions to 1/4 to 1/2 mile will be possible into this   
   afternoon.   
      
   DISCUSSION...Preceding a robust midlevel trough and within the   
   left-exit region of a 90-100-kt midlevel jet, a secondary cold front   
   is tracking eastward across parts of western NY, western PA, and far   
   northern WV. Mosaic radar data indicates a few loosely organized   
   snow squalls along the wind shift -- some of which have been   
   associated with visibility reductions to 1/4 mile and gusty winds.   
   Through the afternoon, cold midlevel temperatures accompanying the   
   trough will steepen low-level lapse rates (generating weak low-level   
   instability) amid 30-40 kt of unidirectional west-southwesterly flow   
   in the lowest 2 km (per regional VWP). This will support the   
   development of periodic snow-squall conditions spreading eastward   
   into the afternoon.=20   
      
   Given the lack of a stronger cold front/low-level frontogenesis,   
   these squalls may tend to be transient and generally be associated   
   with visibility reductions of 1/2. However, 1/4 mile visibility and   
   strong gusts will be possible with the stronger squalls that evolve,   
   as seen by the Delevan NY State mesonet web cam in northeast   
   Cattaraugus County NY at 1500-1515Z.   
      
   ..Weinman.. 01/11/2026   
      
   ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=   
   g!-R__E7FE6WRfdR1vkn2TfT1VYqC6z8zBjf6Hooxrlx8bBMbBTJ-b6CdJ8UV0qhRp_tY7XbvuW=   
   SRRWthwDNaEahl1VaY$  for graphic product...   
      
   ATTN...WFO...BGM...BUF...CTP...LWX...PBZ...   
      
   LAT...LON   40847957 41447933 42217883 42807830 43147773 43177729   
               43067649 42787614 42277584 41707596 41407639 41237689   
               40837756 39407859 39147924 39297985 39627990 40847957=20   
      
      
   =3D =3D =3D   
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   --- SBBSecho 3.28-Linux   
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