Severe Storm Outlook Narrative (AC)
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ACUS11 KWNS 192153
SWOMCD
SPC MCD 192153
FLZ000-200000-
Mesoscale Discussion 0838
NWS Storm Prediction Center Norman OK
0453 PM CDT Sun May 19 2024
Areas affected...Southeast Florida
Concerning...Severe Thunderstorm Watch 258...
Valid 192153Z - 200000Z
The severe weather threat for Severe Thunderstorm Watch 258
continues.
SUMMARY...The threat for large hail and damaging winds continues
across parts of the southeast Florida coast.
DISCUSSION...Regional radar imagery and surface observations
continue to show deep convection developing along and behind a
southward-surging outflow boundary along the southeast FL coast.
While most storms have struggled to intensify due to the
undercutting nature of the boundary, a few deeper cells have managed
to mature within an otherwise favorable supercell environment. A
sea-breeze boundary remains evident along the southeastern FL coast
ahead of the outflow boundary, and while deeper convective
initiation has occurred within the past hour, strengthening
low-level westerly winds has shifted the boundary closer to the
coast, resulting in quick storm propagation offshore. The general
expectation over the next 1-2 hours is for a continuation of
scattered thunderstorms along the southeast FL coast with a few
strong to severe cells capable of large hail and damaging winds.
This threat will gradually abate through the evening hours amid the
onset of nocturnal cooling and a continued southward surge of the
undercutting outflow boundary.
..Moore.. 05/19/2024
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...MFL...
LAT...LON 26888070 26938060 26938008 26848003 26588002 26418005
26238008 26098010 25938010 25768011 25688014 25648024
25628031 25708045 25798057 25938066 26068073 26198078
26328083 26538085 26668083 26788078 26888070