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Mesoscale Discussion 452
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   Mesoscale Discussion 0452
   NWS Storm Prediction Center Norman OK
   0931 PM CDT Wed Apr 22 2020

   Areas affected...Far Southwest MS...Northern Southeast LA

   Concerning...Tornado Watch 135...

   Valid 230231Z - 230400Z

   The severe weather threat for Tornado Watch 135 continues.

   SUMMARY...Long-track supercell will continue to pose a risk for all
   severe hazards, including tornadoes, as it moves eastward into far
   southwest MS.

   DISCUSSION...Long-track supercell continues to move
   east-northeastward across central LA. Northward movement of the warm
   front continues to be hampered by numerous showers and thunderstorm
   north of the boundary. However, some slow northward progress has
   been noted with the dewpoint at HEZ and HZR now 65 and 70 deg F,
   respectively. Area VAD wind profiles continue to show strong
   low-level veering favorable for tornadoes. Given the continued
   threat, a downstream Tornado Watch will likely be needed for
   portions of far southwest MS and northern southeast LA. 

   In the near-term, the highest tornado threat will exist immediately
   downstream of the ongoing supercell over Rapides Perish LA. Recent
   radar signatures have shown another increase in organization and the
   downstream environment is more than supportive of additional
   tornadogenesis.

   ..Mosier/Grams.. 04/23/2020

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

   ATTN...WFO...JAN...LIX...LCH...SHV...

   LAT...LON   31599230 31799004 30749003 30559136 30789276 31599230 

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