High Seas Forecast
Issued by NWS

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000
FZNT02 KNHC 170246
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC THU AUG 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU AUG 17.
24 HOUR FORECAST VALID 0000 UTC FRI AUG 18.
48 HOUR FORECAST VALID 0000 UTC SAT AUG 19.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC AND CARIBBEAN FROM 16.5N TO 20.5N BETWEEN 60W AND 71.5W
WINDS 20 TO 25 KT. SEAS TO 9 FT ATLC WATERS AND PASSAGES.
SCATTERED MODERATE TO STRONG CONVECTION FROM 15N TO 22N BETWEEN
60W AND 69W.
.ATLC AND CARIBBEAN 24 HOUR FORECAST FROM 18.5N TO 22N BETWEEN
69W AND 76.5W...INCLUDING THE WINDWARD PASSAGE...WINDS 20 TO 25
KT. SEAS TO 9 FT.
.ATLC 48 HOUR FORECAST S OF 23N BETWEEN 70W AND 77.5W E TO SE
WINDS 20 TO 25 KT. SEAS TO 8 FT.

.ATLC LOW PRES NEAR 13.5N50.5W 1011 MB. FROM 60 NM TO 360 NM N
QUADRANT WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE FROM
13.5N TO 19N BETWEEN 45W AND 53W WINDS 20 KT OR LESS. SEAS TO 9
FT IN NE TO E SWELL. SCATTERED MODERATE TO STRONG CONVECTION
WITHIN 150 NM NW SEMICIRCLE.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
13.5N57W 1010 MB. FROM 60 NM TO 300 NM N SEMICIRCLE WINDS 20 TO
25 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 13N TO 19N BETWEEN 52W
AND 60W WINDS 20 KT OR LESS. SEAS TO 9 FT IN E SWELL.
.CARIBBEAN 48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL
CYCLONE...NEAR 14.5N64W 1010 MB. WITHIN 300 NM N SEMICIRCLE
WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE ATLC AND CARIBBEAN
FROM 14.5N TO 20N BETWEEN 58W AND 66W WINDS 20 KT OR LESS. SEAS
TO 9 FT IN E SWELL.

.ATLC LOW PRES NEAR 14N38.5W 1010 MB. FROM 90 NM TO 300 NM N
QUADRANT NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. ELSEWHERE
FROM 14N TO 21N BETWEEN 35W AND 41W WINDS 20 KT OR LESS. SEAS TO
9 FT IN NE TO E SWELL.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
15N46W 1011 MB. WITHIN 270 NM N SEMICIRCLE AND 75 NM SE QUADRANT
WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE FROM 14.5N TO 20N
BETWEEN 40W AND 50W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE TO E
SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
17.5N53W 1008 MB. WITHIN 270 NM NE SEMICIRCLE WINDS 20 TO 30 KT.
SEAS 9 TO 13 FT. ELSEWHERE FROM 15N TO 23N BETWEEN 47W AND 56W
WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE TO E SWELL.

.ATLC AND CARIBBEAN FROM 19N TO 21N BETWEEN 71W AND 75W...
INCLUDING WINDWARD PASSAGE...NE TO E WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT.
.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST CONDITIONS TO MERGE WITH ATLC AND CARIBBEAN
SECTIONS DESCRIBED ABOVE.

.ATLC 48 HOUR FORECAST FROM 13N TO 17.5N BETWEEN 35W AND 40W NE
TO E WINDS 20 TO 25 KT. SEAS TO 9 FT.

.CARIBBEAN FROM 11N TO 13N BETWEEN 70W AND 76W NE TO E WINDS 20
TO 25 KT. SEAS TO 8 FT. ELSEWHERE FROM 10.5N TO 14N BETWEEN 76W
AND 80W WINDS 20 KT OR LESS. SEAS TO 9 FT IN NE TO E SWELL.
.24 HOUR FORECAST FROM 11N TO 13N BETWEEN 78W AND 81W WINDS 20
KT OR LESS. SEAS TO 8 FT IN NE SWELL.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST FROM 11N TO 13N BETWEEN 70W AND 74.5W NE WINDS
20 TO 25 KT. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER STRIPLING. NATIONAL HURRICANE CENTER.



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