Area Forecast Discussion
Issued by NWS
FXUS62 KKEY 301755
Area Forecast Discussion
National Weather Service Key West FL
155 PM EDT Sun Apr 30 2017
KBYX detects isolated showers throughout the forecast area. Skies
over the island chain are partly cloudy. Winds over land are east
to southeast at 15 to 20 mph. C-MAN winds, on average, are east to
southeast near 20 knots. Temperatures are in the mid 80s.
.SHORT TERM (Tonight through Tuesday night)...
An Atlantic ridge of high pressure will shift southward tonight
and Monday. This ridge of high pressure will extend across Central
Florida Monday night and Tuesday, before retreating eastward
Tuesday night. No more than slight chance POPs are needed in the
short term portion of the forecast at this time.
.LONG TERM (Wednesday through Sunday)...
A stationary front over North Florida will move northward as a
warm front Wednesday and Wednesday night. A weak cold front will
progress eastward through the western and central Gulf of Mexico
Thursday and Thursday night. This feeble cold front may pass
through the Florida Keys Friday or Friday night. An area of high
pressure will build southeastward down the Florida peninsula
Saturday through Sunday. Rain chances in the long term portion of
the forecast should be highest Friday and Friday night ahead of
and along the approaching weak cold front.
A Small Craft Advisory is in effect for all Keys coastal waters
tonight due to sustained east to southeast surface winds near 20
knots. A Small Craft Advisory may be required for the coastal
waters of the Atlantic Monday. No advisories expected Monday night
through at least Friday night.
VFR conditions will prevail at the island terminals tonight.
Isolated showers are expected across the broader area and brief
episodes of sub VFR conditions are possible at either terminal.
Surface winds will be east to southeast at 10 to 15 knots, with
gusts near 25 knots.
On this date in Florida Keys weather history, in 1992, the low
temperature at Key West International Airport was 59 degrees. This
set the daily record for minimum temperature measured in Key West
on April 30th, a record which still stands 25 years later. In
addition, this is the latest date in the spring season on which
the temperature fell below 60 degrees in Key West. Temperature
records at Key West date back to 1872.
.PRELIMINARY POINT TEMPS/POPS...
Key West 79 85 79 85 / 20 20 20 20
Marathon 80 89 80 88 / 20 20 20 20
GM...Small Craft Advisory for GMZ031>035-042>044-052>055-072>075.
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