Area Forecast Discussion
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000
FXUS62 KKEY 041447
AFDKEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
1047 AM EDT FRI SEP 4 2015

.DISCUSSION...
SHOWERS WITH A FEW THUNDERSTORMS HAVE BEEN CONFINED TO BROKEN LINES
NORTH AND SOUTH OF THE ISLAND CHAIN. A FEW CELLS HAVE CROSS THE
ISLAND CHAIN...IN THE MIDDLE AND UPPER KEYS...OVER THE PAST COUPLE OF
HOURS. BUT...OVERALL MOVEMENT IS SLOW AT BEST. EARLY MORNING VISIBLE
SATELLITE IMAGES SHOW PARTLY CLOUDY SKIES FOR THE BULK OF THE SERVICE
AREA. WINDS ARE LIGHT AND VARIABLE WITH CURRENT TEMPERATURES IN THE
UPPER 80S IN THE KEYS.

THE LOCAL MORNING SOUNDING SHOWS THE LIGHT WINDS ARE EXTENDING
THROUGH A GREAT DEPTH OF THE TROPOSPHERE. CIMSS PRECIPITABLE WATER
IMAGERY SHOWS A STRIP OF SOMEWHAT DRIER AIR ALIGNED ACROSS THE
KEYS...CONFIRMED WHEN COMPARING OUR NEARBY NEIGHBORS TO OUR NORTH. A
SHALLOW AND WEAK INHIBITING LAYER IS EVIDENT NOT FAR FROM THE
SURFACE. IN ALL...THERE IS NO NEED TO UPDATE THE EARLY MORNING ZONE
FORECAST. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS PERSISTS
THROUGH TODAY WITH A LIGHT AND VARIABLE WIND.

&&

.MARINE...
A LIGHT AND VARIABLE BREEZE WILL PERSIST THROUGH THE REMAINDER OF THE
DAY ACROSS MOST WATERS SURROUNDING THE FLORIDA KEYS...BUT KEPT A
LIGHT NORTHWEST TRANSITION FOR THE GULF WATERS THIS AFTERNOON.
EXPECT ISOLATED SHOWERS AND THUNDERSTORMS TO CONTINUE DURING THAT
TIME. THERE WERE NO SIGNIFICANT CHANGES ON THE RECENTLY TRANSMITTED
COASTAL WATERS UPDATE.

&&

.AVIATION...
THE BEST CHANCE FOR A MVFR/IFR ENCOUNTER WILL BE FOR
THE BALANCE OF THIS MORNING OR EARLY AFTERNOON...OTHERWISE...VFR
CONDITIONS WILL PREVAIL AT BOTH KEY WEST AND MARATHON AIRPORTS.
VARIABLE WINDS OF 5 KNOTS OR LESS WILL BECOME MOSTLY NORTHWEST AT
LESS THAN 10 KNOTS DURING THE MID TO LATE AFTERNOON.

&&

.KEY WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GM...NONE.

&&

$$

PUBLIC/MARINE.........04
AVIATION/NOWCASTS.....APA
DATA COLLECTION.......BWC

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