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Mesoscale Discussion 155
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   Mesoscale Discussion 0155
   NWS Storm Prediction Center Norman OK
   0354 AM CDT Tue Mar 20 2018

   Areas affected...Eastern GA and southern SC

   Concerning...Severe Thunderstorm Watch 16...

   Valid 200854Z - 201030Z

   The severe weather threat for Severe Thunderstorm Watch 16

   SUMMARY...Damaging wind threat persists across eastern Georgia and
   southern South Carolina through early this morning (until at least

   DISCUSSION...Mosaic radar imagery and individual radars indicated a
   leading band of storms moving through southern SC at 40 KT, which
   should move off the SC coast by 10Z.  A second, faster-moving line
   of storms located in east-central GA (in Emanuel County at 0830Z)
   will advance to the east at 40-45 KT.  Surface and objective
   analyses indicated continued moisture advection in advance of these
   storms across eastern GA and southern SC, sustaining sufficient
   destabilization for these storms to remain surface based.  CLX radar
   showed an outflow boundary associated with the lead storms in SC
   trailing westward through southern Screven County GA to the storms
   in Emanuel County.  Given strong westerly winds (50 KT) across
   central GA per area WSR-88Ds and an unstable downstream environment,
   bands of storms will continue to develop and pose a threat for
   damaging winds into the early morning.

   ..Peters.. 03/20/2018

   ...Please see for graphic product...


   LAT...LON   32558275 32718223 32848200 32828153 32758101 32908064
               33358031 33498002 32937892 31218095 31308139 31888216
               31948272 32118295 32488308 32558275 

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