Storm Prediction Center Mesoscale Discussion 58

   Mesoscale Discussion 0058
   NWS Storm Prediction Center Norman OK
   1055 AM CST Sun Jan 25 2026

   Areas affected...northern Pennsylvania...southern New
   York...northern New Jersey...Connecticut...Rhode Island...and
   southern Massachusetts.

   Concerning...Heavy snow 

   Valid 251655Z - 252100Z

   SUMMARY...Heavy snowfall is expected through the afternoon with
   rates up to 2 inches per hour.

   DISCUSSION...Widespread heavy snow is already ongoing across
   Pennsylvania and New Jersey this morning. This heavy snow will shift
   northeast through the afternoon. In addition, very heavy rates are
   expected to develop across far southeast New York, Connecticut, and
   Rhode Island. In this region, very strong 700mb frontogenesis is
   forecast between 18Z and 21Z amid strong isentropic ascent. 

   In addition, amid strong warm-air advection, the transition zone
   from snow to sleet is moving rapidly north across eastern
   Pennsylvania and New Jersey (as sampled by KDOX Correlation
   Coefficient). Expect this transition zone to continue to advect
   north during the early afternoon before stalling near the
   Connecticut shore by mid-afternoon.

   ..Bentley.. 01/25/2026

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

   ATTN...WFO...BOX...OKX...ALY...PHI...BGM...BUF...CTP...PBZ...

   LAT...LON   40547360 40457485 40387616 40537855 40897905 41537880
               42327785 42587441 42457181 42037085 41367074 40587296
               40547360