000
FXUS62 KKEY 251816
AFDKEY

Area Forecast Discussion
National Weather Service Key West FL
216 PM EDT Fri May 25 2018

...HEAVY RAINFALL THROUGHOUT THE FLORIDA KEYS THIS WEEKEND...

.DISCUSSION...
.CURRENTLY...
KBYX detects widespread showers throughout the forecast area.
Skies over the island chain are cloudy. Winds over land are
southeast at 10 to 15 mph. C-MAN winds, on average, are east to
southeast at 15 to 20 knots. Temperatures are in the mid to upper
70s.

.SHORT TERM (Tonight through Sunday night)...
Subtropical Storm Alberto is located over the northwestern
Caribbean Sea. This subtropical storm will generally move to the
north this weekend. Gradual intensification is expected tonight
through Sunday night. Four to eight inches of rain, with locally
higher amounts, is possible tonight through Sunday night. A few
strong thunderstorms may impact the Florida Keys Saturday and
Saturday night, producing wind gusts near 55 mph. Tropical storm
conditions are possible on the coastal waters of the western
Florida Straits and offshore Gulf of Mexico Saturday night. A wind
advisory may be required for the Florida Keys Saturday night.

&&

.LONG TERM (Monday through Friday)...
Subtropical Storm Alberto should turn to the northwest near the
northern Gulf coast Monday. An Atlantic ridge of high pressure
will build across South Florida Monday night through Friday. Rain
chances in the long term portion of the forecast will be highest
Monday and Monday night.

&&

.MARINE...
A Small Craft Advisory will be in effect for the coastal waters of
the Gulf of Mexico and Atlantic tonight due to sustained southeast
winds near 20 knots. A Small Craft Advisory will likely be
required for all Keys coastal waters Saturday through Sunday
night. Tropical storm conditions are possible on the coastal
waters of the western Florida Straits and offshore Gulf of Mexico
Saturday night. A Small Craft Advisory will likely be required for
the coastal waters of the Gulf of Mexico and Atlantic Monday and
Monday night. A Small Craft Advisory may be required for the
coastal waters of Florida Bay Monday and Monday night. No
advisories expected Tuesday through at least Wednesday night.

&&

.AVIATION...
Current VFR conditions will likely deteriorate into MVFR and sub-
MVFR conditions into the evening and overnight in association with
widespread shower activity at EYW and MTH. Expect sustained
easterly winds near 10 knots to increase to 15 knots and veer to
the east to southeast, with gusts of 20 to 25 knots after 26/03z.

&&

.PRELIMINARY POINT TEMPS/POPS...
Key West  73 80 75 83 / 90 90 90 70
Marathon  73 83 75 85 / 90 90 90 70

&&

.KEY WATCHES/WARNINGS/ADVISORIES...
FL...None.
GM...Small Craft Advisory for GMZ032>035-042>044-052>055-072>075.

&&

$$

Public/Marine/Fire...BS
Aviation/Nowcasts....MCLOVIN
Data Collection......Devanas

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