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000
FXUS62 KKEY 221425
AFDKEY

AREA FORECAST DISCUSSION FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
1030 AM EDT FRI AUG 22 2014

.DISCUSSION...
.CURRENTLY...
KBYX DETECTS ISOLATED SHOWERS AND THUNDERSTORMS THROUGHOUT THE
FORECAST AREA. SKIES OVER THE ISLAND CHAIN ARE PARTLY CLOUDY. WINDS
OVER LAND ARE EAST AT 5 TO 10 MPH. C-MAN WINDS...ON AVERAGE...ARE
EAST TO SOUTHEAST NEAR 10 KNOTS. TEMPERATURES ARE IN THE UPPER 80S.

.SHORT TERM (THIS AFTERNOON)...
IN THE LOW LEVELS OF THE ATMOSPHERE...AN ATLANTIC RIDGE OF HIGH
PRESSURE WILL EXTEND ACROSS SOUTH CENTRAL FLORIDA THIS AFTERNOON. IN
THE MID TO UPPER LEVELS OF THE ATMOSPHERE...AN AREA OF HIGH PRESSURE
WILL BE CENTERED OVER THE SOUTHEASTERN UNITED STATES TODAY. THE 12Z
KKEY SOUNDING IS VERY UNSTABLE AND QUITE MOIST...WITH A PRECIPITABLE
WATER (PWAT) VALUE JUST UNDER TWO INCHES. ATMOSPHERIC MOISTURE WILL
DECREASE THIS AFTERNOON. BY SUNSET THIS EVENING...PWAT VALUES WILL
BE JUST ABOVE ONE AND THREE QUARTERS OF AN INCH...WHICH IS NEAR
NORMAL FOR THIS TIME OF YEAR. DESPITE AMPLE ATMOSPHERIC INSTABILITY
AND ADEQUATE MOISTURE IN PLACE FOR CONVECTION...ANTICYCLONIC FLOW IN
ALL LEVELS OF THE ATMOSPHERE WILL LIMIT POPS TO SLIGHT CHANCE
CATEGORY THIS AFTERNOON.

&&

.MARINE...
GENTLE EAST TO SOUTHEAST BREEZES WILL PREVAIL ON ALL KEYS COASTAL
WATERS THIS AFTERNOON. NO ADVISORIES OR CAUTIONARY HEADLINES
EXPECTED TODAY THROUGH AT LEAST TUESDAY NIGHT.

&&

.AVIATION...
VFR WILL PREVAIL AT THE EYW AND MTH TERMINALS. EXPECT MAINLY
EASTERLY BREEZES AT 10 KNOTS OR LESS. CLOUD LINE FORMATION THIS
AFTERNOON APPEARS QUESTIONABLE...GIVEN THE DRY AIR APPARENT ON THE
CURRENT RAOB OBSERVATION...AND WITHIN AVAILABLE FORECAST SOUNDINGS.

&&

.CLIMATE...
ON THIS DATE IN KEYS WEATHER HISTORY...IN 1975...1.61 INCHES OF RAIN
WAS RECORDED IN KEY WEST. THIS SET THE DAILY RAINFALL RECORD FOR
AUGUST 22 IN KEY WEST. RAINFALL RECORDS FOR KEY WEST DATE BACK TO
1871.

&&

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

&&

$$

PUBLIC/MARINE/FIRE/DIGITAL...BS
AVIATION/NOWCASTS/CLIMATE....CLR
DATA ACQUISITION.............VICKERY

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