Duck Key, Florida Weather Forecast Discussion

822
FXUS62 KKEY 200229
AFDKEY
Area Forecast Discussion
National Weather Service Key West FL
1029 PM EDT Fri Sep 19 2025
...New DISCUSSION, MARINE, AVIATION...
.DISCUSSION...
Issued at 1030 PM EDT Fri Sep 19 2025
Weak surface ridging over the southeastern United States is
generating light breezes across the Keys this evening. Earlier
day time heating has backed these breezes northerly, but should
veer northeasterly and strengthen slightly in the next few hours
as the diurnal influence dissipates. Troughing will remain across
the Gulf through the upper levels. However, increasingly drier
air in the lower levels will filter southward across the Keys
overnight. This along with anticyclonic flow in control at the
surface should keep rain chances below seasonal norms. A few
showers and even a thunderstorm cannot be completely ruled out as
inhibition is expected to be slim and boundary layer moisture
ample. Expect overnight lows to settle around the upper 70s with
dew points lingering in the mid 70s.
&&
.MARINE...
Issued at 1030 PM EDT Fri Sep 19 2025
High pressure over the southeastern United States will maintain
light to gentle breezes overnight. Winds will start out northwest
to north, shifting northeast. Convective activity is expected to
be isolated.
&&
.AVIATION...
(00Z TAFS)
Issued at 1030 PM EDT Fri Sep 19 2025
VFR conditions will prevail at the island terminals overnight.
Surface winds will be light to gentle out of the north, shifting
northeast.
&&
.KEY WATCHES/WARNINGS/ADVISORIES...
FL...None.
GM...None.
&&
$$
Public/Marine/Fire...11
Aviation/Nowcasts....11
Data Acquisition.....AJP
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NWS KEY Office Area Forecast Discussion