027  
ACUS11 KWNS 191650  
SWOMCD  
SPC MCD 191650  
NYZ000-PAZ000-WVZ000-OHZ000-192045-  
 
MESOSCALE DISCUSSION 0028  
NWS STORM PREDICTION CENTER NORMAN OK  
1050 AM CST MON JAN 19 2026  
 
AREAS AFFECTED...PENNSYLVANIA INTO WESTERN NEW YORK  
 
CONCERNING...SNOW SQUALL  
 
VALID 191650Z - 192045Z  
 
SUMMARY...OCCASIONAL VISIBILITY REDUCTIONS ASSOCIATED WITH  
MODERATE/HEAVY SNOW SHOWERS AND GUSTY WINDS MAY SPREAD EAST ACROSS  
PARTS OF PENNSYLVANIA AND INTO WESTERN NEW YORK THROUGH THE  
AFTERNOON.  
 
DISCUSSION...A CLUSTER OF SNOW SHOWERS MIGRATING ACROSS EASTERN OH  
AND WESTERN PA OVER THE PAST FEW HOURS HAVE YIELDED OCCASIONAL  
VISIBILITY REDUCTIONS DOWN TO 1/4 MILE PER REGIONAL WEB CAMS AND  
ASOS OBSERVATIONS. THESE VISIBILITY REDUCTIONS ARE LARGELY BEING  
DRIVEN BY MODERATE TO HEAVY SNOWFALL RATES WITHIN SHALLOW, BUT  
CONVECTIVELY AUGMENTED, SNOW SHOWERS AHEAD OF A PROGRESSIVE  
MID-LEVEL WAVE EVIDENT IN GOES IMAGERY. STRONG COLD ADVECTION  
THROUGH 850 MB WILL CONTINUE TO SUPPORT 25-35 MPH WIND GUSTS, WHICH  
WILL FURTHER CONTRIBUTE TO PERIODS OF LOW VISIBILITY BY BLOWING  
FALLING SNOW AND THE ANTECEDENT SNOW PACK IN PLACE ACROSS WESTERN  
PA. AS SUCH, PERIODS OF SNOW SQUALL CONDITIONS SHOULD SPREAD  
EAST/NORTHEAST THROUGH MID-AFTERNOON IN TANDEM WITH THE UPPER WAVE  
AND THE SURGING LOW-LEVEL COLD AIR MASS.  
 
..MOORE.. 01/19/2026  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT  
 
ATTN...WFO...BGM...BUF...CTP...PBZ...CLE...  
 
LAT...LON 40088011 40158059 40468072 41068072 41588055 41898026  
42797841 42867780 42807704 42447635 42117596 41627592  
41247586 40767613 40477662 40088011  
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