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Mesoscale Discussion 520
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MD 520 graphic

   Mesoscale Discussion 0520
   NWS Storm Prediction Center Norman OK
   0250 PM CDT Fri May 25 2018

   Areas affected...Portions of northern and central Maine

   Concerning...Severe potential...Watch unlikely 

   Valid 251950Z - 252145Z

   Probability of Watch Issuance...20 percent

   SUMMARY...Strong to severe storm are possible this afternoon with an
   associated severe wind and hail risk. A WW is not likely at this

   DISCUSSION...Storms have formed along a surface boundary in western
   Quebec this afternoon and are quickly moving east into northern
   Maine. While buoyancy remains limited -- MUCAPE is analyzed to be
   around 500 J/kg -- strong flow aloft has contributed to 30-65 kts of
   effective bulk shear per RAP analysis. Given the large shear values,
   storm organization will be sufficient to present a severe wind and
   hail threat. However, limited buoyancy and coverage of storms will
   not necessitate a WW at this time.

   ..Wendt/Hart.. 05/25/2018

   ...Please see for graphic product...


   LAT...LON   46936886 46766788 46366768 45806768 45606818 45686916
               45816986 45977017 46267032 46747021 47076980 46936886 

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