Area Forecast Discussion
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000
FXUS62 KKEY 211832
AFDKEY

AREA FORECAST DISCUSSION FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
235 PM EDT THU AUG 21 2014

.DISCUSSION...
.CURRENTLY...
KBYX DETECTS ISOLATED SHOWERS 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 RANGE FROM THE MID 80S IN RAIN COOLED AREAS
TO THE LOWER 90S ELSEWHERE.

.SHORT TERM (TONIGHT THROUGH SATURDAY NIGHT)...
AN ATLANTIC RIDGE OF HIGH PRESSURE WILL EXTEND ACROSS SOUTH CENTRAL
FLORIDA TONIGHT THROUGH FRIDAY NIGHT. THIS RIDGE OF HIGH PRESSURE
WILL BEGIN TO RETREAT EASTWARD SATURDAY AND SATURDAY NIGHT. THIS
WILL ALLOW LOW TO MID LEVEL WINDS TO BACK TO MORE OF A NORTHEAST
DIRECTION. ISLAND CUMULUS CLOUD LINES SHOULD BE ABLE TO BUILD
DIRECTLY OVER THE FLORIDA KEYS SATURDAY AFTERNOON. THIS WILL RESULT
IN THE BEST CHANCE OF RAIN IN THE SHORT TERM PORTION OF THE FORECAST
SATURDAY AFTERNOON AND SATURDAY EVENING.

.LONG TERM (SUNDAY THROUGH THURSDAY)...
A TROPICAL DISTURBANCE SHOULD PASS IN A GENERAL NORTHWARD DIRECTION
THROUGH THE BAHAMAS SUNDAY. THIS DISTURBANCE SHOULD ACCELERATE IN A
GENERAL NORTHWARD DIRECTION SUNDAY NIGHT THROUGH TUESDAY NIGHT. AN
ATLANTIC RIDGE OF HIGH PRESSURE WILL BUILD ACROSS THE FLORIDA
PENINSULA WEDNESDAY THROUGH THURSDAY.

&&

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

&&

.AVIATION...
TONIGHT...SHORT LIVED MVFR/IFR CONDITIONS ARE POSSIBLE THROUGH
SUNSET AT THE KEY WEST INTERNATIONAL TERMINAL...AS THUNDERSTORMS
PROPAGATE TOWARDS THE TERMINAL FROM THE NORTHEAST AND INTERSECT THE
CLOUD LINE. IN ADDITION ISOLATED WIND GUSTS TO 30 KNOTS ARE POSSIBLE
IN THE STRONGEST ACTIVITY. THIS HAS BEEN INDICATED IN A TEMPO. VFR
CONDITIONS EXPECTED THROUGH 00Z AT MTH. VFR CONDITIONS WILL PREVAIL
AT BOTH TERMINALS AFTER 00Z.

&&

.CLIMATE...
ON THIS DATE IN KEYS WEATHER HISTORY...IN 1945...1.92 INCHES OF RAIN
FELL IN KEY WEST. THIS SET THE DAILY RECORD FOR MAXIMUM RAINFALL
MEASURED IN KEY WEST ON AUGUST 21ST...A RECORD WHICH STILL STANDS 69
YEARS LATER. RAINFALL RECORDS AT KEY WEST DATE BACK TO 1871.

&&

.PRELIMINARY POINT TEMPS/POPS...
KEY WEST  83 92 82 91 / 20 20 20 30
MARATHON  83 93 82 93 / 20 20 20 30

&&

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

&&

$$

PUBLIC/MARINE/FIRE/CLIMATE/DIGITAL...BS
AVIATION/NOWCASTS....................DAF
DATA ACQUISITION.....................SC/MP

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