Area Forecast Discussion
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FXUS62 KKEY 242048

Area Forecast Discussion
National Weather Service Key West FL
348 PM EST Fri Feb 24 2017

KBYX detects no precip echos across the island chain or coastal
waters. A deck of stratus lingers across the southeastern gulf and
cloud cover across the Lower Keys have increased, though sunny
conditions still persist. Winds have decreased across the island
chain with ASOS and CMAN stations reporting near 5 knot winds,
with winds variable but generally out of the northwest. A low
pressure system churns northwest of the Bahamas and is drifting
northwest as a high pressure takes hold of the Southeastern US.
Farther west across the CONUS, a frontal boundary associated with
a deepening trough is approaching the Ohio River Valley.

A deck of stratus across the Southeast Gulf will likely linger
overnight... occasionally reaching south enough to affect the
Lower to Middle Keys. Otherwise... a building ridge of high
pressure will shift eastward with the axis across the island chain
Saturday morning. Dew points will slowly edge upward through
Sunday. A change comes Sunday evening and early Monday as a weak
frontal boundary moves through the Florida Peninsula and washes
out across South Florida. Only a small dip in temps/dew points is
expected for a very limited window in response... but a surge of
moisture out of the east, on the underside of a Bermuda High
returns quickly Monday. Expect increasing chances of showers
Monday and beyond next week... with dew points in the low 70s.


No cautionary headlines exist for the coastal waters. Pleasant
boating conditions to continue through Saturday. A weak frontal
boundary will approach the island chain Sunday night. Cautionary
headlines or advisories may be required as a result early next


VFR conditions will prevail overnight at the island terminals.
Spells of MVFR ceilings will be possible due to
stratus/stratocumulus into the area from the extreme southeast Gulf
of Mexico. Light westerly breezes will turn northwest.


On this date in Florida Keys weather history, in 1892, Key West
recorded 1.62 inches of rainfall. This set the daily record for
rainfall measured in Key West on February 24th, a record which
still stands 125 years later. Precipitation records at Key West
date back to 1871.




Data Collection......Vickery

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