Mesoscale Discussion 0073
   NWS Storm Prediction Center Norman OK
   0749 AM CST Tue Jan 16 2024

   Areas affected...Parts of the Mid Atlantic into southern New England

   Concerning...Winter mixed precipitation 

   Valid 161349Z - 161745Z

   SUMMARY...Locally moderate winter precipitation rates will spread
   northeastward this morning, with some modest ice accretion possible
   where freezing rain persists.

   DISCUSSION...A surface low currently off of the Mid Atlantic coast
   is forecast to gradually deepen as it moves northeast toward coastal
   southern New England this morning. Multiple waves of light to
   locally moderate precipitation are ongoing and will continue to
   spread northeastward in conjunction with the surface low. While
   interior portions of the Northeast will likely continue to see snow
   (with generally light to moderate rates) this morning, low-level
   warm advection will support a transition from snow to sleet across
   parts of southern New England, with freezing rain persisting over
   portions of the Mid Atlantic region.

   As the low deepens offshore, a modest uptick in precipitation
   intensity will be possible through the morning. While rates will
   likely remain light to locally moderate, antecedent cold conditions
   (with temperatures initially in the 20s F) may result in relatively
   efficient ice accretion in areas that transition to freezing rain.
   Pockets of moderate sleet/snow will also be possible into parts of
   southern New England. Low-level warm advection will support a
   gradual transition to rain along the Mid Atlantic and southern New
   England coasts, but subfreezing temperatures may persist inland
   through the morning.

   ..Dean.. 01/16/2024

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

   ATTN...WFO...GYX...BOX...OKX...ALY...PHI...LWX...

   LAT...LON   39497504 38747620 38747652 39137660 39727603 41187450
               42147322 42607220 42787134 42627089 42347101 41377217
               40937321 40307434 39497504