Area Forecast Discussion
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FXUS62 KKEY 171909

Area Forecast Discussion
National Weather Service Key West FL
209 PM EST Fri Nov 17 2017

Clear skies overhead in the lower and middle Keys, with some
cumulus over the upper Keys. Temperatures across the islands are
in the 75 to 80 range. Winds have been northeast 10-15 knots over
the Keys, and near 15 knots along the marine platforms along the
reef and north of Key West. Out in the Florida Straits a few ship
reports indicate winds are likely still around marginal advisory
criteria. Key West radar clear of any precipitation.

As high pressure builds into the Atlantic seaboard the pressure
gradient over the Keys and coastal waters should slowly begin to
relax tonight through Sunday night. Dry air through a deep layer
will continue to filter into the area around the eastern
periphery of the ridge, making anything outside of a shower or two
unlikely. A few showers could be possible in the outer Florida
Straits over the Gulf Stream waters.


A cold front will approach the area late Sunday night into Monday,
with winds picking up near 15 knots from the northeast Monday
morning through early Tuesday morning as the front stalls over the
area and then begins to dissipate on Tuesday. Winds will relax
thereafter through Friday, and begin to increase with another
approaching front on Friday.


Winds will begin to decrease across the Florida Keys coastal
waters this evening, with moderate to fresh northeast breezes
expected across all waters. Small craft should exercise caution in
the Florida Straits as winds will likely remain in the 15 to 20
knot range. Light to gentle northeast to east breezes are expected
Saturday and Sunday, then picking up again Sunday evening as a
weak cold front approaches the area. No lightning is expected
through at least Sunday.


VFR conditions will prevail at both the Key West and Marathon
terminals through this evening. Surface winds will be from the
northeast at 10 to 15 mph this evening, decreasing to 5 to 10 mph


Key West  72  80  70  79 / -  -  -  -
Marathon  72  82  70  81 / -  -  -  -


GM...Small Craft Advisory until 4 PM EST this afternoon for



Data Collection......L. Kasper

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