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Mesoscale Discussion 36
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   Mesoscale Discussion 0036
   NWS Storm Prediction Center Norman OK
   0833 PM CST Sat Jan 19 2019

   Areas affected...northern/central Pennsylvania... southern New
   York... northern New Jersey... western Connecticut

   Concerning...Heavy snow 

   Valid 200233Z - 200530Z

   SUMMARY...Moderate to heavy snowfall will continue across the region
   with 1-2 inch per hour snowfall rates likely.

   DISCUSSION...Regional radar shows widespread moderate to heavy
   snowfall over an expansive area of the Northeast. The heaviest
   snowfall rates appear mostly confined near the northward-retreating
   rain/freezing rain/snow line across portions of central Pennsylvania
   and into New Jersey. Some localized banding is evident farther north
   across northern Pennsylvania, and snowfall is beginning to fill in
   and become more expansive across southern New York into Connecticut.


   These radar trends are expected to continue in the near term, with
   gradual enhancement of the snowfall rates across portions of
   southern New York/Connecticut as mid-level warm-air
   advection/frontogenetical forcing persist while the system continues
   to lift northeast. RAP soundings continue to indicate the potential
   for vertical motion through the dendritic growth zone across much of
   the region. Widespread 1-2 inch per hour snowfall rates are likely,
   particularly along and north of the precipitation-type transition
   zone. Some freezing rain will also remain possible in this
   northward-evolving transition zone.

   ..Karstens.. 01/20/2019

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

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

   LAT...LON   40187836 40597887 41087949 41278038 41868048 42197980
               42577864 42587610 42207478 41427315 41067303 40837390
               40557513 40107604 39997685 40017762 40187836 

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Page last modified: January 20, 2019
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