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Mesoscale Discussion 1220
NWS Storm Prediction Center Norman OK
0515 PM CDT Sat Jun 18 2022

Areas affected...southern Florida

Concerning...Severe Thunderstorm Watch 389...

Valid 182215Z - 182345Z

The severe weather threat for Severe Thunderstorm Watch 389
continues.

SUMMARY...A risk for localized strong surface gusts continues into
early evening, mainly over the interior southern peninsula.

DISCUSSION...Earlier clustering of thunderstorm activity over the
interior central peninsula has largely weakened, but light northerly
deep-layer ambient mean flow continues to aid southward propagation
of conglomerated outflow.  The leading edge of this air mass is in
the process of advancing across/south of the Port St. Lucie, Lake
Okeechobee and Cape Coral vicinities, with stronger lingering
thunderstorm activity now focused near an intersection with the
Atlantic sea-breeze, near the eastern shores of Lake Okeechobee, and
near the intersection with another outflow boundary and Gulf sea
breeze, northeast of Cape Coral. 

Stronger convection probably will tend to propagate southward along
the sea-breezes, which might tend to gradually collide over interior
southern Florida within the next few hours.  This would seem to
focus higher potential for locally strong surface gusts inland of
most coastal co*munities.

..Kerr.. 06/18/2022

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

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

LAT...LON   26968117 27278052 26608030 25968032 25428070 25828102
            26358158 26778157 26968117