Mesoscale Discussion 0032
   NWS Storm Prediction Center Norman OK
   0524 PM CST Sat Jan 19 2019

   Areas affected...northern Ohio... much of Pennsylvania... northern
   Maryland... far northeastern West Virginia... far southwestern New
   York

   Concerning...Heavy snow 

   Valid 192324Z - 200230Z

   SUMMARY...Moderate to heavy snowbands continue to overspread the
   region, with widespread 1-2 inch per hour snowfall rates likely.

   DISCUSSION...Regional radar shows moderate to heavy snowbands
   continuing over portions of northern Ohio, and developing/spreading
   into portions of Pennsylvania and northern Maryland. Locations where
   these snowbands have setup are currently experiencing snowfall rates
   of 1-2 inches per hour. 

   These observational trends are expected to continue for the next few
   hours. Strong mid-level frontogenetical forcing is resulting in
   broad vertical ascent over the region. RAP soundings indicate
   moderate vertical motion through the dendritic growth zone, helping
   to enhance snowfall rates. With time, areas of northern Maryland and
   southern Pennsylvania should transition to rain, but could
   experience some brief freezing rain as warm air advection aloft
   outpaces warming at the surface.

   ..Karstens.. 01/19/2019

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

   ATTN...WFO...PHI...BGM...BUF...CTP...LWX...PBZ...CLE...ILN...
   IWX...IND...

   LAT...LON   40978436 40578483 40108488 39838435 40078327 40818102
               40987990 40897958 40557928 40127918 39487923 39357854
               39467742 39747625 40077607 40777598 41847592 42287695
               42287881 41968038 41768136 41638207 41448289 41228374
               40978436