Area Forecast Discussion
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FXUS62 KKEY 231504
AFDKEY

AREA FORECAST DISCUSSION FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
1104 AM EDT WED APR 23 2014

.DISCUSSION...
CURRENT WEATHER SUMMARY -- ANOTHER MILD APRIL DAY IS UNDERWAY ACROSS
THE FLORIDA KEYS AND ADJACENT COASTAL WATERS...WITH CURRENT AIR
TEMPERATURES RISING SLOWLY THROUGH THE UPPER 70S. MEANWHILE...
DEWPOINT TEMPERATURES ARE HOLDING STEADY 61-65F...KEEPING THE AIR
MASS JUST ON THE COMFORTABLE SIDE. A FEW TO SCATTERED SHALLOW
CUMULUS CLOUDS ARE EVIDENT IN BOTH SURFACE AND SATELLITE
OBSERVATIONS ABOUT THE KEYS. DATA COLLECTED FROM THE KEY WEST MORNING
RADIOSONDE BALLOON REVEAL A DRY AND STABLY STRATIFIED ATMOSPHERE
ABOVE THE SHALLOW...LOW-ALTITUDE CUMULUS LAYER. INDEED...LOCAL
DOPPLER RADAR SCANS CURRENTLY ARE VOID OF ANY PRECIPITATION ECHOES.
THE MEAN SEA LEVEL PRESSURE PATTERN ACROSS THE AREA IS RATHER WEAK
WITH A MEAGER HIGH PRESSURE CELL CENTERED OVER THE NORTH-CENTRAL GULF
OF MEXICO BENEATH ZONAL FLOW ALOFT.

FORECAST HIGHLIGHTS THIS AFTERNOON -- SKIES SHOULD TURN MOSTLY SUNNY
SOON IF THEY ARE NOT ALREADY. AIR TEMPERATURES WILL TOP OUT NEAR 80F
WITH GENTLE WEST TO NORTHWEST BREEZES PREVAILING.
&&

.MARINE...
GENTLE NORTHWEST BREEZES WILL PREVAIL OVER MOST OF THE SERVICE AREA
THIS AFTERNOON AND EVENING. THE EXCEPTION WILL BE OVER PORTIONS OF
FLORIDA BAY AND HAWK CHANNEL OFF THE UPPER KEYS WHERE MAINLAND
PENINSULA HEATING WILL INDUCE WINDS TO TURN WEST-SOUTHWEST AND
FRESHEN NEAR 15 KNOTS FOR A FEW HOURS LATER THIS AFTERNOON AND EARLY
EVENING.
&&

.AVIATION...
THROUGH 24/15Z...PREVAILING VFR CONDITIONS ARE EXPECTED AT BOTH EYW
AND MTH. A FEW SHORT-LIVED STRATOCUMULUS CEILINGS ARE POSSIBLE AT
EITHER TERMINAL. HOWEVER...INDIVIDUAL EPISODE DURATIONS WILL BE ON
THE ORDER OF MINUTES.
&&

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

$$

PUBLIC/MARINE.........KASPER
AVIATION/NOWCASTS.....11
DATA COLLECTION.......CLR

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