Area Forecast Discussion
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000
FXUS62 KKEY 270245
AFDKEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
1045 PM EDT TUE MAY 26 2015

.DISCUSSION...
.CURRENTLY...
SKIES ARE MOSTLY CLEAR WITH TEMPERATURES PRIMARILY IN THE LOWER 80S
ALONG THE ISLAND CHAIN. MEANWHILE...LOCAL RADARS ARE DETECTING A
PERSISTENT...10 TO 15 MPH WIDE AREA OF SHOWERS ON THE NEARSHORE
WATERS SOUTHEAST OF THE LOWER AND MIDDLE KEYS...TO BEYOND 20 NM
SOUTHEAST OF THE UPPER KEYS. EARLIER THIS WAS INITIATED AS A
STREAMER OFF ANDROS ISLAND. SURFACE WISE...AN EXTENSIVE WESTERN
ATLANTIC RIDGE REACHES FROM WELL OFF THE MID ATLANTIC COAST...TO
ACROSS NORTH FLORIDA AND THE GULF COAST REGION. ACROSS OUR MARINE
DISTRICT...EAST WINDS RANGE FROM 15 TO 20 KNOTS. OTHERWISE...OUR
EVENING SOUNDING REVEALS AN EXTREMELY DRY AIRMASS IN PLACE
ESPECIALLY ABOVE 850 MB WHERE A TEMPERATURE/DEWPOINT DEPRESSION OF
20 DEGREES C IS EVIDENT AT 700 MB. FRESH TO STRONG EAST WINDS
SLACKEN ABOVE 850 MB...BEFORE VEERING ABOVE 600 MB.

.SHORT TERM (REST OF TONIGHT)...
DESPITE EXTREMELY DRY AIR ABOVE 850 MB...FRESH TO STRONG LOW LEVEL
EAST WINDS WILL PROVIDE ENOUGH MOISTURE FLUX TO GENERATE ISOLATED
SHOWERS. GIVEN EAST WINDS OF 15 TO 20 MPH AND WATER TEMPERATURES
NEAR OR ABOVE 80 DEGREES...LOW TEMPERATURES WILL HOLD NEAR 80. SINCE
THE CURRENT FORECAST HANDLES THE SITUATION WELL...NO ADJUSTMENT IS
PLANNED.

&&

.MARINE...
OUR EVENING SOUNDING REVEALS EAST WINDS OF 21 KNOTS AT 1 AND 2
THOUSAND FEET RESPECTIVELY WHICH COINCIDES WITH THE KBYX VWP. WITH A
VERY FORMIDABLE REGION OF HIGH PRESSURE TO OUR NORTHEAST...A SMALL
CRAFT ADVISORY WILL REMAIN IN EFFECT FOR HAWK CHANNEL...THE FLORIDA
STRAITS AND THE WATERS IN AND AROUND TORTUGAS AND THE OUTER WATERS
OF MAINLAND MONROE. ELSEWHERE...AN EXERCISE CAUTION HEADLINE WILL BE
IN EFFECT FOR FLORIDA BAY AND THE NEARSHORE GULF WATERS NORTH OF THE
MIDDLE KEYS.

&&

.AVIATION...
VFR CONDITIONS WILL PREVAIL AT THE KEY WEST AND MARATHON TERMINALS
THROUGH WEDNESDAY AFTERNOON WITH THE POSSIBILITY OF BRIEF MVFR
ENCOUNTER. WINDS WILL BE PREDOMINATELY OUT OF THE EAST AT AROUND 10
TO 15 KNOTS WITH GUSTS TO NEAR 20 KNOTS.

&&

.CLIMATE...
IN 1992...THE DAILY RECORD LOW TEMPERATURE OF 68F WAS RECORDED IN
KEY WEST.

&&

.KEY WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GM...SMALL CRAFT ADVISORY FOR 042>044-052>055-072>075.

&&

$$

PUBLIC/MARINE/CLIMATE/FIRE/DIGITAL...APA
AVIATION/NOWCAST.....................BF
DATA ACQUISITION.....................MP
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