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Mesoscale Discussion 42
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   Mesoscale Discussion 0042
   NWS Storm Prediction Center Norman OK
   0312 AM CST Fri Jan 07 2022

   Areas affected...portions of Long Island NY into CT...RI and eastern
   MA

   Concerning...Heavy snow 

   Valid 070912Z - 071415Z

   SUMMARY...Snowfall rates will increase to around 1-2 inches per hour
   at times from parts of Long Island into eastern MA through early
   morning.

   DISCUSSION...Snowfall rates are increasing early this morning from
   portions of Long Island NY into eastern CT, RI and eastern MA. This
   is occurring within a band of strong 700 mb frontogenesis and 2 hour
   surface pressure falls of around 2-3 mb. Additionally, increasing
   midlevel ascent through a deep, saturated dendritic growth layer
   will increase snowfall efficiency. The heaviest snowfall rates are
   expected within bands from Long Island into eastern CT and southeast
   MA over the next several hours. Rates may approach 1-2 inches per
   hour at times through early morning.

   ..Leitman.. 01/07/2022

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

   ATTN...WFO...BOX...OKX...ALY...

   LAT...LON   41287351 41927276 42657152 42777067 42617033 42377011
               41787008 41097084 40667215 40557284 40657332 40927355
               41287351 

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