Mesoscale Discussion 1343
   NWS Storm Prediction Center Norman OK
   0645 AM CDT Sun Jul 26 2020

   Areas affected...south Texas

   Concerning...Tornado Watch 402...

   Valid 261145Z - 261315Z

   The severe weather threat for Tornado Watch 402 continues.

   SUMMARY...The tornado threat across far south Texas will continue
   through the morning and into the early afternoon as Tropical Storm
   Hannah slowly moves into northern Mexico. A new tornado watch will
   likely be needed later this morning.

   DISCUSSION...The low-level wind field remains favorable for
   tornadoes across far south Texas as Tropical Storm Hanna continues
   to move into northern Mexico. 

   In the short term the greatest tornado threat should exist across
   deep south Texas. This area is on the northern edge of a more
   persistent band of stronger convection, located across far northeast
   Mexico, associated with Hanna. Morning radar imagery from
   Brownsville continues to show numerous broad, transient area of
   low-level rotation embedded within this convective band.
   Additionally, recent radar trends indicate isolated, transient
   mini-supercells east of Brownsville moving west-northwest toward the
   Texas coast. The overall low-level kinematic environment should
   remain favorable for brief tornadoes into the afternoon.

   Given this continued risk, a new tornado watch will likely be needed
   prior to the expiration of Tornado Watch #402, which is scheduled to
   expire at 9AM CDT. This new tornado watch will likely last into at
   least the early afternoon.

   ..Marsh.. 07/26/2020

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

   ATTN...WFO...CRP...BRO...

   LAT...LON   26179834 28379876 28189613 25729714 26179834