Area Forecast Discussion
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000
FXUS62 KKEY 060303
AFDKEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
1003 PM EST THU MAR 5 2015

.DISCUSSION...
ANALYSIS SHOWS WEAKENING HIGH PRESSURE ACROSS SOUTHERN FLORIDA AND THE
KEYS LATE THIS EVENING. WINDS ARE DIMINISHING...WITH CMAN SENSORS CLOSE
TO THE ISLAND CHAIN UNIFORMLY AT OR AROUND 10 KNOTS...MAINLY FROM THE
EAST. ISLAND SENSORS ARE REGISTERING 10 MPH OR LESS AT THIS
HOUR...WITH TEMPERATURES IN THE MIDDLE 70S. LATE EVENING IR
SATELLITE IMAGES SHOW JUST A FEW PATCHES OF SHALLOW STRATOCU ON THE
EXTREME SOUTHERN FRINGES OF OUR ATLANTIC MARINE ZONES.

THE HIGH PRESSURE ACROSS SOUTH FLORIDA AND THE KEYS WILL CONTINUE TO
WEAKEN OVERNIGHT WHILE SLIDING FURTHER INTO THE WESTERN NORTH
ATLANTIC...NUDGED BY A FRONT CURRENTLY SAGGING INTO THE CENTRAL GULF
OF MEXICO FROM THE BIG BEND AREA OF FLORIDA. WE EXPECT THE KBYX RADAR
TO REMAIN QUIET OVERNIGHT THANKS TO A LIGHT WIND PROFILE EXTENDING TO
WELL ABOVE 10000 FEET AND A STABLE AIRMASS IN PLACE. THE AFTERNOON
ZONE ISSUANCE HAS THE EXPECTED SENSIBLE WEATHER ELEMENTS ADVERTISED
WELL. NO UPDATE IS PLANNED THIS EVENING.

&&

.MARINE...
THE ONLY ADJUSTMENT ANTICIPATED ON THE UPCOMING COASTAL WATERS
UPDATE WILL BE TO ADJUST THE INITIAL WIND DIRECTION IN A FEW OF OUR
MARINE GROUPINGS BACK TO THE NORTHEAST/EAST...AND TRIM THE SPEED BACK
BY A COUPLE OF KNOTS. BUT THIS ACCOUNTS FOR A VERY MINOR CHANGE FROM
THE AFTERNOON COASTAL WATERS ISSUANCE.

&&

.AVIATION...PREVAILING EASTERLIES AROUND 5 KNOTS ALONG THE ISLAND
CHAIN AT BOTH TERMINALS TONIGHT. VFR CONDITIONS WILL REMAIN
THROUGHOUT THE TAF PERIOD WITH SHALLOW PATCHY STRATOCU BASED NEAR
2000 FT FRIDAY MORNING.

&&

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

&&

$$

PUBLIC/MARINE.........04
AVIATION/NOWCASTS.....VICKERY
DATA COLLECTION.......VICKERY

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