Area Forecast Discussion
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000
FXUS62 KKEY 070242
AFDKEY

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
1040 PM EDT MON JUL 6 2015

.DISCUSSION...
.CURRENTLY...
SKIES ARE PARTLY CLOUDY WITH TEMPERATURES IN THE LOWER TO MID 80S
ALONG WITH DEWPOINT READINGS HOLDING IN THE UPPER 70S.
MEANWHILE...LOCAL RADARS ARE DETECTING ISOLATED SHOWERS AND
THUNDERSTORMS ON THE OUTER WATERS OF MAINLAND MONROE...AS WELL AS
THE WATERS BETWEEN THE MARQUESAS KEYS AND BEYOND DRY TORTUGAS.
SURFACE WISE...THE SEMI-PERMANENT WESTERN ATLANTIC RIDGE LIES ACROSS
THE CENTRAL PORTION OF THE SUNSHINE STATE. WINDS ON OUR MARINE
DISTRICT RANGE FROM 6 KNOTS AT MOLASSES REEF LIGHT TO 14 KNOTS AT
SMITH SHOAL LIGHT. OTHERWISE...OUR EVENING SOUNDING REVEALS A VERY
CHAOTIC WIND REGIME WITH LOW LEVEL EASTERLIES OVERLAID BY
WESTERLIES ABOVE 800 MB...BEFORE TURNING MOSTLY SOUTHERLY ABOVE 500
MB. A DISTINCT DRY LAYER REMAINS BETWEEN 850 AND 700 MB.

.SHORT TERM (REST OF TONIGHT)...DESPITE A DEEP DRY LAYER
BETWEEN 850 AND 700 MB AND NO APPARENT OUTFLOW BOUNDARY LIKELY
TO EMMANATE FROM THE SOUTH FLORIDA PENINSULA...A FEW LEFTOVER
BOUNDARIES COMBINED WITH A MODEST LOW LEVEL EASTERLY FLOW COULD SET
OFF NOCTURNAL ISOLATED SHOWERS AND THUNDERSTORMS. A LIGHT EAST WIND
WILL ALLOW SOME INTERIOR COMMUNITIES TO DROP INTO THE UPPER 70S BUT
WITH MOST ISLAND LOCATIONS REMAINING IN THE LOWER 80S. SINCE THE
CURRENT FORECAST APPEARS TO BE ON TRACK...NO ADJUSTMENTS ARE
PLANNED.

&&

.MARINE...
WITH THE WESTERN ATLANTIC RIDGE AXIS DRAPED ACROSS THE FLORIDA
PENINSULA SLIGHTLY ERODED...EXPECT WINDS TO REMAIN IN THE 10 TO 15
KNOT RANGE FOR THE MOST PART EXCEPT NEAR 15 KNOTS ON THE FLORIDA
STRAITS. OTHERWISE...ISOLATED SHOWERS AND THUNDERSTORMS WILL BE
RETAINED ON ALL KEYS COASTAL WATERS.

&&

.AVIATION...
VFR AND GENTLE EAST-SOUTHEAST BREEZES WILL PREVAIL AT
THE EYW AND MTH TERMINALS OVERNIGHT.

&&

.CLIMATE...
IN 1918...THE DAILY RECORD LOW TEMPERATURE OF 71 DEGREES IN KEY WEST
WAS LAST RECORDED. TEMPERATURE RECORDS HAVE BEEN KEPT SINCE 1872.
&&

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

&&

$$

PUBLIC/MARINE/FIRE/CLIMATE/DIGITAL...APA
AVIATION.............................CLR
DATA ACQUISITION.....................SC

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