000
FZNT02 KNHC 230850
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC TUE AUG 23.
24 HOUR FORECAST VALID 0600 UTC WED AUG 24.
48 HOUR FORECAST VALID 0600 UTC THU AUG 25.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM GASTON WELL E OF AREA NEAR 13.2N 32.4W 1004 MB
AT 0900 UTC AUG 23 MOVING W NW OR 290 DEG AT 17 KT. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS
WITHIN 50 NM N SEMICIRCLE...40 NM SE AND 30 NM SW QUADRANTS.
SEAS 12 FT OR GREATER WITHIN 30 NM S SEMICIRCLE...60 NM NE AND
45 NM NW QUADRANTS WITH SEAS TO 14 FT.  SCATTERED TSTMS IN BANDS
WITHIN 240 NM OF CENTER.
.12 HOUR FORECAST TROPICAL STORM GASTON NEAR 13.9N 34.8W AT 1800
UTC AUG 23. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL
STORM FORCE WINDS WITHIN 60 NM NE...50 NM SE...40 NM SW AND 50
NM NW QUADRANTS. SEAS 12 FT OR GREATER WITHIN 120 NM E AND 90 NM
W SEMICIRCLES WITH SEAS TO 21 FT. SCATTERED TSTMS IN BANDS
WITHIN 240 NM OF CENTER.
.24 HOUR FORECAST HURRICANE GASTON NEAR 15.2N 37.9W. MAXIMUM
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS
WITHIN 90 NM NE...60 NM SE...50 NM SW AND 70 NM NW QUADRANTS.
SEAS 12 FT OR GREATER WITHIN 150 NM NE AND 120 NM SW SEMICIRCLES
WITH SEAS TO 27 FT. ELSEWHERE WITHIN 180 NM OF CENTER WINDS 20
TO 33 KT. SEAS 8 TO 11 FT. REMAINDER FORECAST WATERS FROM 10N TO
18N E OF 40W WINDS 20 KT OR LESS. SEAS TO 10 FT PRIMARILY IN
MIXED SWELL. SCATTERED TSTMS IN BANDS WITHIN 240 NM OF CENTER.
.48 HOUR FORECAST HURRICANE GASTON NEAR 18.5N 43.0W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS
WITHIN 100 NM NW AND SE QUADRANTS...130 NM NE AND 70 NM SW
QUADRANTS. SEAS 12 FT OR GREATER WITHIN 240 NM OF CENTER WITH
SEAS TO 33 FT. ELSEWHERE WITHIN 270 NM OF CENTER WINDS 20 TO 33
KT. SEAS 8 TO 11 FT. REMAINDER FORECAST WATERS WITHIN 300 NM N
AND 390 NM S SEMICIRCLES OF CENTER WINDS 20 KT OR LESS. SEAS TO
10 FT PRIMARILY IN MIXED SWELL. NUMEROUS SQUALLS WITHIN 240 NM
OF CENTER.
.72 HOUR FORECAST HURRICANE GASTON NEAR 22.6N 47.4W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE GASTON NEAR 26.5N 51.5W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 KT.
.120 HOUR FORECAST HURRICANE GASTON NEAR 29.4N 53.6W. MAXIMUM
SUSTAINED WINDS 80 KT GUSTS 100 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.

.TROPICAL DEPRESSION FIONA NEAR 25.8N 63.4W 1010 MB AT 0900 UTC
AUG 23 MOVING W NW OR 290 DEG AT 11 KT. WINDS 20 TO 30 KT WITHIN
75 NM OF CENTER. SEAS TO 11 FT WITHIN 150 NM NE AND 90 NM SW
SEMICIRCLES OF CENTER.
.24 HOUR FORECAST TROPICAL DEPRESSION FIONA NEAR 27.1N 67.0W.
WINDS 20 TO 25 KT WITHIN 75 NM OF CENTER. SEAS TO 10 FT WITHIN 
90 NM OF CENTER.
.48 HOUR FORECAST POST TROPICAL REMNANT LOW FIONA NEAR 28.9N
69.5W 1015 MB. WINDS 20 TO 25 KT WITHIN 75 NM OF CENTER. SEAS TO
9 FT WITHIN 90 NM OF CENTER. 
.72 HOUR FORECAST POST TROPICAL REMNANT LOW FIONA NEAR 30.0N
70.8W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST TROPICAL REMNANT LOW FIONA NEAR 30.6N
71.6W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.120 HOUR FORECAST...DISSIPATED.

.ATLC TROPICAL WAVE FROM 11N55W TO 21N55W WITH LOW PRES NEAR
16N55W 1009 MB. WITHIN 180 NM NE QUADRANT E TO SE WINDS 20 TO 25
KT. WITHIN 420 NM NE QUADRANT SEAS TO 9 FT. SCATTERED TSTMS
WITHIN 180 NM SE SEMICIRCLE OF LOW. POSSIBLE TROPICAL CYCLONE
FORMATION.  
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
18N62W 1008 MB. WITHIN 330 NM NE SEMICIRCLE OF LOW E TO SE 
WINDS 20 TO 25 KT. SEAS TO 10 FT. SCATTERED TSTMS WITHIN 150
NM OF LOW.   
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
21N68W 1006 MB. WITHIN 330 NM NE SEMICIRCLE OF LOW E TO SE 
WINDS 20 TO 25 KT. SEAS TO 10 FT. 

.CARIBBEAN FROM 10N TO 14N BETWEEN 74W AND 80W NE TO E WINDS
20 TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 10N TO 16N BETWEEN
75W AND 83W WINDS 20 KT OR LESS. SEAS TO 9 FT IN E SWELL.
.24 HOUR FORECAST FROM 10N TO 13N BETWEEN 74W AND 77W NE TO E
WINDS 20 TO 25 KT. SEAS TO 9 FT.
.42 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 NELSON. NATIONAL HURRICANE CENTER.