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Mesoscale Discussion 368
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   Mesoscale Discussion 0368
   NWS Storm Prediction Center Norman OK
   1224 PM CDT Sun Apr 11 2021

   Areas affected...parts of central and southern Florida

   Concerning...Severe Thunderstorm Watch 91...

   Valid 111724Z - 111930Z

   The severe weather threat for Severe Thunderstorm Watch 91
   continues.

   SUMMARY...Severe risk continues locally across parts of central
   Florida -- within WW 91 -- and will gradually shift southward
   requiring new WW consideration across much of south Florida.

   DISCUSSION...Latest radar loop shows a band of storms sagging
   southward across central Florida, with occasionally stronger
   storms/convective segments noted.  As outflow associated with this
   band shifts steadily southward, the primary zone of severe risk will
   likewise shift south -- and eventually out of the current WW.

   Meanwhile, as the very moist south Florida airmass continues to
   warm/destabilize, additional/cellular development is occurring south
   of the main convective band.  Given sufficient shear across the
   area, a few of these storms could produce gusty winds and hail,
   prior to the arrival of storms from the north.  Given these trends,
   a new WW will likely be required in the next 60 to 90 minutes,
   across much of south Florida.

   ..Goss.. 04/11/2021

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

   ATTN...WFO...MFL...MLB...TBW...

   LAT...LON   27138297 27428251 27688149 27878018 26977977 25937990
               25568042 25538144 26138241 27138297 

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Page last modified: April 11, 2021
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