High Seas Forecast
Issued by NWS

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000
FZNT02 KNHC 232136
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC TUE AUG 23 2016

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

PAN PAN

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 1800 UTC TUE AUG 23.
24 HOUR FORECAST VALID 1800 UTC WED AUG 24.
48 HOUR FORECAST VALID 1800 UTC THU AUG 25.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM GASTON NEAR 14.2N 35.8W 1002 MB AT 2100 UTC AUG
23 MOVING WNW OR 290 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 55 KT
GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM N
SEMICIRCLE...40 NM SE QUADRANT AND 30 NM SW QUADRANT. SEAS 12 FT
OR GREATER WITHIN 90 NM N SEMICIRCLE AND 30 NM S SEMICIRCLE WITH
SEAS TO 18 FT. ELSEWHERE FROM 11N TO 18N E OF 37W WINDS 20 TO 33
KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST HURRICANE GASTON NEAR 16.8N 40.7W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM NW AND SE QUADRANTS...110 NM NE QUADRANT AND 60 NM
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM NE SEMICIRCLE
AND 120 NM SW SEMICIRCLE WITH SEAS TO 28 FT. ELSEWHERE WITHIN
330 NM NE AND 180 NM SW SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO
12 FT.
.48 HOUR FORECAST HURRICANE GASTON NEAR 20.8N 45.4W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 140 NM NE QUADRANT...110 NM SE QUADRANT...70 NM SW
QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
240 NM NE SEMICIRCLE AND 180 NM SW SEMICIRCLE WITH SEAS TO 36 FT.
ELSEWHERE OVER FORECAST WATERS WITHIN 360 NM OF CENTER WINDS 20
TO 33 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST HURRICANE GASTON NEAR 25.5N 49.6W. MAXIMUM
SUSTAINED WINDS 70 KT GUSTS 85 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE GASTON NEAR 28.5N 53.5W. MAXIMUM
SUSTAINED WINDS 75 KT GUSTS 90 KT.
.120 HOUR FORECAST HURRICANE GASTON NEAR 31.0N 54.5W. MAXIMUM
SUSTAINED WINDS 85 KT GUSTS 105 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.ATLC TROPICAL WAVE FROM 11N55W TO 22N61W WITH LOW PRES NEAR
17N58W 1009 MB. FROM 17N TO 21N BETWEEN 55W AND 59W E TO SE
WINDS 20 TO 25 KT. SEAS TO 9 FT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
19N65W 1007 MB. S OF 22N AND N OF A LINE FROM 17N60W TO 20N66W E
TO SE WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
22N71W 1006 MB. WITHIN 240 NM NE SEMICIRCLE OF LOW WINDS 20 TO
30 KT. SEAS 8 TO 11 FT.

.ATLC POST-TROPICAL CYCLONE FIONA NEAR 26N65W 1014 MB. WITHIN 90
NM NE SEMICIRCLE WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST POST-TROPICAL CYCLONE FIONA DISSIPATED. WINDS
20 KT OR LESS. SEAS LESS THAN 8 FT.

.CARIBBEAN FROM 10.5N TO 13N BETWEEN 75W AND 80W NE WINDS 20 TO
25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.FORECASTER MCELROY. NATIONAL HURRICANE CENTER.



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