Area Forecast Discussion
Issued by NWS Key West, FL

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940
FXUS62 KKEY 061751
AFDKEY

Area Forecast Discussion
National Weather Service Key West FL
1251 PM EST Sat Dec 6 2025

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

.KEY MESSAGES...

-Mainly light to gentle southeast breezes expected through the
 weekend.

-A weak cloudline could develop later today.

-Moisture increases tonight through Monday ahead of a possible
 frontal system early next week.

-Humidity will also continue to rise with dew points reaching
 potentially the upper 70s for Sunday.

&&

.AVIATION...
(18Z TAFS)
Issued at 1246 PM EST Sat Dec 6 2025
VFR conditions will prevail at both EYW and MTH through the TAF
period. Southeasterly winds of 5 to 10 knots will become light and
variable this afternoon.

&&

.PREVIOUS DISCUSSION...
Issued at 1040 AM EST Sat Dec 6 2025
A quiet morning is underway across the Florida Keys. KBYX detects
a few shallow precipitable echos drifting lazily to the northwest
through the Straits of Florida. These showers are associated with
a few lines of fair weather cumulus viewable from GOES-19 visible
imagery. Otherwise, the island chain is fairly cloud free.
Further up north, layers of cumulus and stratocumulus can be seen
streaming over Florida`s Big Bend associated with a cold front
slowly sagging south over the state. Central and South Florida`s
morning fog has mostly dissipated with a patch still visibile over
Lake Okeechobee. This is all to say that basically all the
different sensible weather events are keeping north of the Keys
for now.

Not too much change is expected in the short term. Similar to
yesterday, current temperatures along the island chain are
already near 80 with unfortunate dewpoints in the lower to mid
70s. Breezes have increased a touch from earlier this morning with
gentle east to southeast breezes now seen along the Reef. This
surge is expected to be fairly brief as we still reside in a col
region with light and variable breezes expected to return later
this afternoon. This morning`s KKEY 12z balloon sounding still has
the veering to southwest winds in the low levels, but has dried
out from yesterday evening. Regardless, this low level wind
profile with winds becoming light and variable may allow for a few
showers near the island chain this afternoon. Thus, no changes to
the forecast are required at this time.

&&

.MARINE...
Issued at 1040 AM EST Sat Dec 6 2025
No watches, warnings, or advisories are currently in effect for
the coastal waters of the Florida Keys. From synopsis, the
Florida Keys will lie in a col region today through Sunday. This
will promote mainly light to gentle southeast breezes,
occasionally becoming variable. Thereafter, a developing weather
system will move out of the Central Plains and into the Southeast
U.S. by Sunday evening. The attendent cold front will sweep
through Monday night with a brief period of moderate to fresh
breezes. Shower coverage will steadily increase starting today and
continuing into early next week.

&&


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

$$

Public/Marine/Fire...AP
Aviation/Nowcasts....AP
Data Acquisition.....AP

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