000
FZNT02 KNHC 180253
HSFAT2

HIGH SEAS FORECAST 
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC TUE JUL 18 2017

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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.

SECURITE

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

SYNOPSIS VALID 0000 UTC TUE JUL 18.
24 HOUR FORECAST VALID 0000 UTC WED JUL 19.
48 HOUR FORECAST VALID 0000 UTC THU JUL 20.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL STORM DON NEAR 11.3N 54.6W 1009 MB AT 0300 UTC JUL 18 
MOVING W OR 280 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 40 KT 
GUSTS 50 KT. TROPICAL STORM FORCE WINDS WITHIN 20 NM OF CENTER 
EXCEPT 0 NM SW QUADRANT. WITHIN 75 NM N SEMICIRCLE AND 45 NM S 
SEMICIRCLE OF CENTER WINDS 20 TO 33 KT. SEAS 9 TO 11 FT. 
ELSEWHERE FROM 11N TO 18N BETWEEN 50W AND 57W WINDS 20 KT OR 
LESS. SEAS TO 9 FT IN NE SWELL.
.24 HOUR FORECAST TROPICAL STORM DON NEAR 12.0N 61.2W. MAXIMUM 
SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS 
WITHIN 50 NM N SEMICIRCLE...30 NM SE QUADRANT AND 0 NM SW 
QUADRANT. WITHIN 150 NM NE QUADRANT AND 75 NM NW QUADRANT AND S 
SEMICIRCLE OF CENTER WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
ELSEWHERE FROM 12N TO 19N BETWEEN 56W AND 61W WINDS 20 KT OR 
LESS. SEAS TO 10 FT IN E SWELL.
.48 HOUR FORECAST TROPICAL STORM DON NEAR 12.5N 69.6W. MAXIMUM 
SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE WINDS 
WITHIN 50 NM N SEMICIRCLE AND 0 NM S SEMICIRCLE. WITHIN 45 NM S 
SEMICIRCLE AND 120 NM N SEMICIRCLE WINDS 20 TO 33 KT. SEAS TO 11 
FT. ELSEWHERE FROM 13N TO 16.5N BETWEEN 65W AND 73W E WINDS 20 
TO 25 KT. SEAS 8 TO 10 FT IN E SWELL.
.72 HOUR FORECAST...DISSIPATED.

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 18 HOUR FORECAST S OF 21N BETWEEN 71W AND 73W E WINDS 20 
TO 25 KT. SEAS TO 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.42 HOUR FORECAST S OF 21N BETWEEN 71W AND 73W E WINDS 20 TO 25 
KT. SEAS TO 8 FT.
.48 HOUR FORECAST LITTLE CHANGE.

.ATLC 48 HOUR FORECAST LOW PRES NEAR 13.5N47W 1011 MB. FROM 14N 
TO 17N BETWEEN 44W AND 47W WINDS 20 KT OR LESS. SEAS TO 9 FT IN 
NE SWELL.

.CARIBBEAN FROM 11N TO 14N BETWEEN 70W AND 76W...INCLUDING THE 
GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 8 FT IN NE 
TO E SWELL. ELSEWHERE FROM 12N TO 15N BETWEEN 76W AND 80W WINDS 
20 KT OR LESS. SEAS TO 9 FT IN NE TO E SWELL.
.12 HOUR FORECAST FROM 11N TO 16N BETWEEN 71W AND 81W NE TO E 
WINDS 20 TO 30 KT. SEAS 8 TO 11 FT IN NE TO E SWELL.
.24 HOUR FORECAST FROM 11N TO 16N BETWEEN 70W AND 77W... 
INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. 
SEAS 8 TO 10 FT IN NE TO E SWELL. ELSEWHERE FROM 11N TO 15N 
BETWEEN 77W AND 81W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE TO E 
SWELL.
.36 HOUR FORECAST FROM 11N TO 17.5N BETWEEN 71W AND 80W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 TO 11 FT IN NE TO E SWELL. ELSEWHERE 
FROM 12N TO 15N BETWEEN 80W AND 82W WINDS 20 KT OR LESS. SEAS TO 
9 FT IN NE TO E SWELL.
.48 HOUR FORECAST FROM 11.5N TO 14N BETWEEN 72W AND 75W NE TO E 
WINDS 20 TO 25 KT. SEAS 8 FT. ELSEWHERE FROM 12N TO 17N BETWEEN 
75W AND 82W WINDS 20 KT OE LESS. SEAS TO 9 FT IN NE TO E SWELL.

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

$$

.FORECASTER HUFFMAN. NATIONAL HURRICANE CENTER.