Area Forecast Discussion
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FXUS62 KKEY 200216
AFDKEY

AREA FORECAST DISCUSSION FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
1020 PM EDT SAT APR 19 2014

.DISCUSSION...
.CURRENTLY...
KBYX DETECTS NO PRECIPITATION ECHOES IN THE FORECAST AREA. SKIES
OVER THE ISLAND CHAIN ARE PARTLY CLOUDY. WINDS OVER LAND ARE
NORTHWEST AT 10 TO 15 MPH. C-MAN WINDS...ON AVERAGE...ARE NORTHWEST
NEAR 15 KNOTS...WITH GUSTS NEAR 20 KNOTS. TEMPERATURES ARE IN THE
MID 70S.

.SHORT TERM (OVERNIGHT)...
A TROUGH OF LOW PRESSURE OVER THE EASTERN PORTION OF THE FLORIDA
STRAITS WILL PROGRESS EASTWARD OVERNIGHT. THE 00Z KKEY SOUNDING IS
STABLE AND DRY FOR THIS TIME OF YEAR...WITH A PRECIPITABLE WATER
(PWAT) VALUE JUST ABOVE ONE INCH. ATMOSPHERIC MOISTURE WILL DECREASE
OVERNIGHT. BY SUNRISE SUNDAY...PWAT VALUES WILL BE JUST ABOVE THREE
QUARTERS OF AN INCH. THE DRY AND STABLE AIR MASS IN PLACE WILL BE
RESPONSIBLE FOR A NEAR ZERO CHANCE OF RAIN OVERNIGHT.

&&

.MARINE...
MODERATE NORTHWEST TO NORTH BREEZES WILL PREVAIL ON ALL KEYS COASTAL
WATERS OVERNIGHT. NO ADVISORIES OR CAUTIONARY HEADLINES EXPECTED
TONIGHT THROUGH AT LEAST THURSDAY NIGHT.

&&

.AVIATION...
EXPECT MAINLY VFR CONDITIONS TO PREVAIL AT BOTH THE KEY WEST
INTERNATIONAL AND MARATHON ISLAND TERMINALS THROUGH THE TERMINAL
FORECAST PERIOD. THERE MAY BE A BRIEF ONSET OF MVFR CEILINGS DUE TO
LOW LEVEL STRATOCUMULUS MOVING ACROSS THE TERMINALS...BUT WITH ZERO
CHANCE FOR RAIN. OTHERWISE...THROUGH AT LEAST 20/06Z...EXPECT
NORTHWEST WINDS NEAR 15 KNOTS WITH GUSTS NEAR 20 KNOTS.

&&

.CLIMATE...
ON THIS DATE IN KEYS WEATHER HISTORY...IN 1934...THE HIGH
TEMPERATURE IN KEY WEST WAS 89 DEGREES. THIS SET THE DAILY RECORD
FOR MAXIMUM TEMPERATURE MEASURED IN KEY WEST ON APRIL 19TH...A
RECORD WHICH STILL STANDS 80 YEARS LATER. TEMPERATURE RECORDS AT KEY
WEST DATE BACK TO 1872.

&&

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

&&

$$

PUBLIC/MARINE/FIRE/CLIMATE/DIGITAL...BS
AVIATION.............................BWC

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