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Mesoscale Discussion 1452
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   Mesoscale Discussion 1452
   NWS Storm Prediction Center Norman OK
   0701 PM CDT Fri Sep 14 2018

   Areas affected...Portions of eastern/central North Carolina

   Concerning...Tornado Watch 374...

   Valid 150001Z - 150200Z

   The severe weather threat for Tornado Watch 374 continues.

   SUMMARY...A threat for a weak tornado or two remains in southern
   portions of WW 374.

   DISCUSSION...The general trend in radar imagery from KMHX over the
   past hour or two has been weak, transient supercell structures
   within an outer rainband of Tropical Storm Florence moving onshore
   near Morehead City, NC. The strongest circulations, however, have
   remained offshore. This outer band has slowly shifted to the
   southwest with time, consistent with the NHC forecast track. While
   the system and associated surface wind fields are expected to weaken
   slowly this evening, strong low-level shear -- around 30 kts per
   KMHX VAD -- and parcel trajectories favoring moisture influx into
   the region supports at least some threat for a weak tornado or two.
   Northern portions of WW 374 likely have experienced the peak in
   activity already. Surface flow in that area will continue to become
   less favorable as the system moves slowly west/southwest.

   ..Wendt.. 09/15/2018

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

   ATTN...WFO...AKQ...MHX...RAH...ILM...

   LAT...LON   34207723 34567826 34837890 34957902 35047908 35137911
               35187909 36207801 36157768 35757551 35137520 35047525
               34977530 34277641 34257651 34207723 34207723 

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Page last modified: September 15, 2018
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