112
FXUS62 KMFL 262319
AFDMFL

Area Forecast Discussion
National Weather Service Miami FL
719 PM EDT Wed Jun 26 2024

...New UPDATE, AVIATION...

.UPDATE...
Issued at 714 PM EDT Wed Jun 26 2024

Shower and thunderstorm activity is gradually waning with the loss
of diurnal heating this evening, but some lingering activity will
be possible the next couple hours, primarily along lingering
outflow boundaries over the Interior and Palm Beach county.
Otherwise a dry night can be expected with lows near to just above
seasonal normals.

&&

.SHORT TERM...
(This afternoon through Thursday)
Issued at 1124 AM EDT Wed Jun 26 2024

South Florida remains embedded in a weak synoptic flow regime,
characterized by a light westerly flow pattern from SFC to 500 mb.
This westerly flow has favored the spawning of convection early this
morning, with a disorganized cluster of pulse storms traversing the
interior and already reaching the east coast as of 11 am this
morning. With PW of 2.11 inches (per 12Z MFL sounding) and
aforementioned lighter flow regime, localized flooding will be the
primary concern/hazard today. The primary areas of focus will be
where the Atlantic sea-breeze circulation intersects outflow from
storms traversing the interior, as this is likely where highest low-
level convergence and mesoscale forcing for ascent will be realized.
With a footprint of higher rainfall over much of the east coast
yesterday and continued rainfall threat today, we cannot rule out an
isolated flash flooding instance.

Tomorrow will feature little deviation in the overall synoptic
regime, though a subtle warming aloft will result in weaker lapse
rates, and perhaps a subtle downward trend in overall atmospheric
moisture (PW). WSW surface/boundary layer winds will continue to
favor the development of convection initially spawning over the
interior, with a gradually progression towards the east coast and
eventual interaction with the Atlantic sea-breeze and associated low-
level convergence zones. Expect similarity high rainfall chances
tomorrow, with urban flooding again being the primary concern
through this period.

Warm and generally seasonable temperatures can be expected through
tomorrow, with maximum temperatures ranging from upper 80s/lower
90s. Overnight, mild/warm temperatures in the low to mid 70s can be
expected for the interior/coasts respectively.

&&

.LONG TERM...
(Thursday night through next Tuesday)
Issued at 248 PM EDT Wed Jun 26 2024

The synoptic pattern begins to change as we head into the weekend
and upper-level ridging builds over the deep South. This will
allow for winds to gradually veer from the south on Friday, then
from the east-southeast starting on Sunday. Throughout this time
period, mesoscale dynamics will be the primary driver of
convective initiation, with near-normal PWAT values supporting
scattered showers and thunderstorms each day. With steady easterly
flow at the surface, the convection regime will generally follow
isolated showers or storms over the East Coast Metro in the
morning, then increasing in coverage and shifting over the
interior and Gulf Coast areas during the afternoon and early
evening. Localized flooding will be the main hazard to monitor
given the weak flow pattern.

Temperatures for the long term period will remain near to just above
our seasonal averages, with highs in the upper 80s to low 90s, and
peak heat indices in the triple digits. Overnight lows will be in
the mid to upper 70s.

&&

.AVIATION...
(00Z TAFS)
Issued at 714 PM EDT Wed Jun 26 2024

VFR conditions will prevail through the overnight hours. Numerous
showers and thunderstorms can be expected again on Thursday with
TEMPOs likely needed in future TAF issuances. Winds will trend
light and variable overnight, and then generally be prevail SW-WSW
10kts or less on Thursday.

&&

.MARINE...
Issued at 1124 AM EDT Wed Jun 26 2024

Gentle southwesterly winds will remain in place across the local
waters for most of the week. Both Atlantic and Gulf waters will
be generally benign, with seas no greater than 1 to 2 feet.
Scattered showers and thunderstorms could result in locally higher
winds and seas each day.

&&

.PRELIMINARY POINT TEMPS/POPS...
Miami            77  91  79  92 /  20  60  10  50
West Kendall     75  92  76  92 /  20  60  10  50
Opa-Locka        77  93  78  93 /  30  60  10  50
Homestead        76  91  79  91 /  20  50  10  50
Fort Lauderdale  77  91  78  90 /  40  60  20  50
N Ft Lauderdale  77  91  79  91 /  40  60  20  50
Pembroke Pines   78  94  79  94 /  30  60  10  50
West Palm Beach  76  92  76  92 /  30  60  20  50
Boca Raton       76  92  77  92 /  40  60  20  50
Naples           79  90  79  92 /  10  50  10  50

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...None.
GM...None.
&&

$$

SHORT TERM...SRB
LONG TERM....ATV
AVIATION...Carr