871
FXUS62 KKEY 121405
AFDKEY

Area Forecast Discussion
National Weather Service Key West FL
1005 AM EDT Sun May 12 2024

...New DISCUSSION, MARINE, AVIATION...

.DISCUSSION...
Issued at 1005 AM EDT Sun May 12 2024

A decayed frontal boundary is currently draped over South Florida,
with dew points in the mid 60s across Central Florida. Meanwhile
in the Keys, dew points are in the mid 70s and temperatures are
already in the lower to mid 80s, making for quite a warm start to
the day. Visible satellite is detecting a boundary that is making
its way across the Lower Keys. Behind this boundary, skies have
cleared dramatically. This morning`s sounding sampled multiple low
level inversions, with very dry air between 850-500 mb. Despite
the prominence of the aforementioned boundary, no shower activity
has been able to develop along it due to this dry air in the lower
levels. This will also likely be the case if a cloud line tries to
develop along the island chain later this afternoon as winds go
light and variable. There may be enough moisture for a weak,
broken cloud line, but it is highly unlikely (as we saw with
yesterday`s cloud line) that there will be any precipitation with
it. Have kept rain chances near nil for the remainder of the day.
No changes were necessary to the forecast package.

&&

.MARINE...
Issued at 1005 AM EDT Sun May 12 2024

There are no watches, warnings, or advisories in effect for the
Florida Keys coastal waters. From synopsis, winds will continue
to clock around the compass this afternoon as a weak front
dissipates in the vicinity of the Florida Keys. Another high
pressure area will slide over the western North Atlantic,
resulting in gentle to moderate southeast to south breezes for
much of next week. A brief bout of moderate to occasionally fresh
breezes are possible Monday night into Tuesday morning and again
Tuesday night.

&&

.AVIATION...
(12Z TAFS)
Issued at 1005 AM EDT Sun May 12 2024

VFR conditions will prevail at both EYW and MTH island terminals
through 12z Monday morning. Light and variable winds this afternoon
and evening will gradually shift to the east to southeast and
modestly freshen overnight.

&&

.CLIMATE...
On this day in 2019, the daily record high temperature (95F) and
the daily record warm low temperature (82F) were both recorded in
Marathon. Temperature records in Marathon date back to 1950.

&&

.PRELIMINARY POINT TEMPS/POPS...
Key West  89  80  90  80 /   0  10  10  10
Marathon  89  80  91  81 /   0  10  10  10

&&

.KEY WATCHES/WARNINGS/ADVISORIES...
FL...None.
GM...None.
&&

$$

Public/Marine/Fire...NB
Aviation/Nowcasts....BT
Data Acquisition.....BT

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