Area Forecast Discussion
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000
FXUS62 KKEY 310119
AFDKEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
920 PM EDT THU JUL 30 2015

.DISCUSSION...
.CURRENTLY...
KBYX DETECTS NO PRECIPITATION ECHOES IN THE FORECAST AREA. SKIES
OVER THE ISLAND CHAIN ARE VARIABLY CLOUDY. WINDS OVER LAND ARE
SOUTHWEST TO WEST NEAR 5 MPH. C-MAN WINDS...ON AVERAGE...ARE WEST
NEAR 5 KNOTS. TEMPERATURES ARE IN THE MID TO UPPER 80S.

.SHORT TERM (OVERNIGHT)...
IN THE LOW TO MID LEVELS OF THE ATMOSPHERE...AN ATLANTIC RIDGE OF
HIGH PRESSURE WILL BUILD ACROSS THE FLORIDA KEYS OVERNIGHT. IN THE
UPPER LEVELS OF THE ATMOSPHERE...AN AREA OF LOW PRESSURE WILL BE
LOCATED JUST NORTHEAST OF THE BAHAMAS TONIGHT. THE 00Z KKEY SOUNDING
IS VERY UNSTABLE...BUT QUITE DRY FOR THIS TIME OF YEAR...WITH A
PRECIPITABLE WATER (PWAT) VALUE JUST ABOVE ONE AND ONE HALF OF AN
INCH. ATMOSPHERIC MOISTURE WILL INCREASE OVERNIGHT. BY SUNRISE
FRIDAY...PWAT VALUES WILL BE JUST ABOVE ONE AND THREE QUARTERS OF AN
INCH...WHICH IS NEAR NORMAL FOR THE END OF JULY. DESPITE THIS
ANTICIPATED INCREASE IN ATMOSPHERIC MOISTURE...LACK OF AN APPARENT
CONVECTIVE TRIGGER WILL LIMIT POPS TO SLIGHT CHANCE CATEGORY TONIGHT.

&&

.MARINE...
LIGHT SOUTHWEST TO WEST BREEZES WILL PREVAIL ON ALL KEYS COASTAL
WATERS OVERNIGHT. NO ADVISORIES OR CAUTIONARY HEADLINES EXPECTED
TONIGHT THROUGH AT LEAST TUESDAY NIGHT.


&&

.AVIATION...
OVERNIGHT...VFR CONDITIONS WILL PERSIST AT BOTH THE KEY WEST AND
MARATHON TERMINALS. SOUTHWEST WINDS NEAR 5 KNOTS WILL GRADUALLY BACK
TO MORE OF A DUE SOUTH DIRECTION AFTER 12Z. FEW-SCT CLOUDS WILL BE
FOUND AT FL025-030 AND BKN-OVC MID TO HIGH CLOUDS AT FL150-200.

&&

.CLIMATE...
ON THIS DATE IN FLORIDA KEYS WEATHER HISTORY...IN 1886...2.65 INCHES
OF RAIN FELL IN KEY WEST. THIS SET THE DAILY RECORD FOR MAXIMUM
RAINFALL MEASURED IN KEY WEST ON JULY 30TH...A RECORD WHICH STILL
STANDS 129 YEARS LATER. RAINFALL RECORDS AT KEY WEST DATE BACK TO
1871.

&&

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

&&

$$

PUBLIC/MARINE/FIRE/CLIMATE/DIGITAL...BS
AVIATION.............................FUTTERMAN
DATA ACQUISITION.....................FLING

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