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Mesoscale Discussion 1315
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   Mesoscale Discussion 1315
   NWS Storm Prediction Center Norman OK
   0814 PM CDT Fri Jul 14 2017

   Areas affected...Portions of central/southern AZ

   Concerning...Severe Thunderstorm Watch 415...

   Valid 150114Z - 150245Z

   The severe weather threat for Severe Thunderstorm Watch 415

   SUMMARY...The threat for localized strong/severe wind gusts
   continues in and near Severe Thunderstorm Watch 415.

   DISCUSSION...As of 01Z, the strongest convection across WW 415 was
   ongoing north of Tucson, while convective intensity has diminished
   near the Phoenix metro. Well-defined outflow boundaries were noted
   moving southward across Maricopa County, and southwestward across
   Pinal and Pima Counties. Localized strong/severe wind gusts remain
   possible along these surging outflow boundaries, and also in the
   vicinity of the strongest cores located upstream of the outflow.
   With time, the two primary outflow boundaries will intersect south
   of Phoenix and west of Tucson, and some reintensification of
   convection is possible as this occurs. 

   Later this evening, increasing MLCINH will result in a more
   definitive weakening trend, but some damaging-wind threat is likely
   to continue for at least the next 1-2 hours along and west of the
   I-19 corridor and south of the I-10 corridor.

   ..Dean.. 07/15/2017

   ...Please see for graphic product...


   LAT...LON   33981234 33601138 32971060 32171028 31781046 31461138
               32031328 34071327 33981234 

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