000
FZNT02 KNHC 281507
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SAT OCT 28 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SAT OCT 28.
24 HOUR FORECAST VALID 1200 UTC SUN OCT 29.
48 HOUR FORECAST VALID 1200 UTC MON OCT 30.

.WARNINGS.

...TROPICAL STORM WARNING...
.TROPICAL DEPRESSION EIGHTEEN NEAR 20.8N 82.9W 1005 MB AT 1500
UTC OCT 28 MOVING NNE OR 020 DEG AT 19 KT. MAXIMUM SUSTAINED
WINDS 30 KT GUSTS 40 KT. WITHIN 240 NM SE SEMICIRCLE WINDS 20 TO
30 KT. SEAS 8 TO 9 FT. 
.12 HOUR FORECAST TROPICAL STORM EIGHTEEN NEAR 23.0N 81.8W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 50 NM NE QUADRANT...120 NM SE QUADRANT AND 0 NM W 
SEMICIRCLE. SEAS 12 FT OR GREATER OVER FORECAST WATERS WITHIN 150
NM SE QUADRANT WITH SEAS TO 14 FT. ELSEWHERE WITHIN 240 NM NE 
AND SW QUADRANTS...300 NM SE QUADRANT AND 150 NM NW QUADRANT 
WINDS 20 TO 33 KT. SEAS TO 8 FT.
.24 HOUR FORECAST TROPICAL STORM EIGHTEEN NEAR 26.6N 78.5W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE 
WINDS WITHIN 120 NM E SEMICIRCLE...50 NM SW QUADRANT AND 0 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM E QUADRANT WITH 
SEAS TO 13 FT. ELSEWHERE WITHIN 300 NM E OF TROUGH AND E 
SEMICIRCLE OF EIGHTEEN AND 240 NM SW QUADRANT WINDS 20 TO 33 KT. 
SEAS 8 TO 12 FT. COLD FRONT FROM 31N80W TO 28N80.5W. TROUGH FROM 
31N76W TO 27N80W. W OF FRONT NW WINDS 20 TO 25 KT. SEAS LESS THAN
8 FT.
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL EIGHTEEN NEAR 
37.5N 69.5W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL 
STORM FORCE WINDS WITHIN 150 NM E SEMICIRCLE...120 NM SW QUADRANT
AND 30 NM NW QUADRANT. SEAS 12 FT OR GREATER N OF AREA. COLD 
FRONT FROM 31N68W TO 27N70W TO 22N72W TO 20N73W. N OF 30N WITHIN 
120 NM E OF FRONT S TO SW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
ELSEWHERE WITHIN AREA BOUNDED BY 29N66W TO 27N69W TO 28N77W TO 
31N78W TO 31N67W TO 29N66W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT 
IN MIXED 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.

...GALE WARNING...
.GULF OF MEXICO COLD FRONT FROM 30.5N87W TO 26N92W TO 24N94W TO
18.5N95W. S OF 25N W OF FRONT NW TO N WINDS 25 TO 35 KT. SEAS 8
TO 10 FT. N OF 25N W OF FRONT AND W OF 91W NW TO N WINDS 20 TO 30
KT. SEAS 8 TO 10 FT S OF 28N.
.12 HOUR FORECAST COLD FRONT FROM 30N85W TO 26N88W TO 22N92W TO 
18N94W. S OF 20N W OF 95W NW WINDS 25 TO 35 KT. SEAS 10 TO 14 FT.
ELSEWHERE W OF FRONT AND W OF 88W NW TO N WINDS 20 TO 25 KT. 
SEAS 8 TO 12 FT IN NW TO N SWELL S OF 27N...HIGHEST SW PART.
.18 HOUR FORECAST COLD FRONT FROM 29N83W TO 25N86W TO 22N90W TO 
18N93W. S OF 27N WITHIN 240 NM NW OF FRONT NW TO N WINDS 20 TO 25
KT. SEAS 8 TO 12 FT IN NW TO N SWELL...HIGHEST NEAR 19N95W. N OF
27N WITHIN 300 NM NW OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS TO
8 FT.
.24 HOUR FORECAST COLD FRONT FRONT FROM 26N81.5W TO 21.5N88W TO 
18.5N92W. S OF 24N WITHIN 180 NM NW OF FRONT NW TO N WINDS 20 TO
25 KT. SEAS 8 TO 11 FT IN NW TO N SWELL. N OF 25N WITHIN 360 NM
NW OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.48 HOUR FORECAST COLD FRONT WELL E OF AREA. WINDS 20 KT OR 
LESS. SEAS LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN AREA BOUNDED BY 29N35W TO 27N40W TO 28N44W TO
31N49W TO 31N35W TO 29N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT 
IN MIXED NE AND SE SWELL.
.18 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 12 HOUR FORECAST COLD FRONT FROM 31N52W TO 28N52W TO
23N58W. WITHIN AREA BOUNDED BY 31N52W TO 31N47W TO 27N48W TO
27N51W TO 31N52W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED NE
AND SE SWELL.
.24 HOUR FORECAST LOW PRES NEAR 31N49.5W 1010 MB. COLD FRONT FROM
LOW TO 29N51W TO 24N57W. WITHIN AREA BOUNDED BY 25N44W TO 
25N52W TO 28N52W TO 27N57W TO 31N61W TO 31N45W TO 25N44W WINDS 20
KT OR LESS. SEAS 8 TO 11 FT IN MIXED NE AND SE SWELL.
.48 HOUR FORECAST LOW PRES NEAR 30.5N48W 1012 MB. WINDS 20 KT 
OR LESS. SEAS LESS THAN 8 FT.

.ATLC 06 HOUR FORECAST WITHIN AREA BOUNDED BY 10N37W TO 08N38W
TO 11N45W TO 13N46W TO 13N38W TO 10N37W WINDS 20 KT OR LESS. SEAS
TO 8 FT IN MIXED NE AND SE SWELL.
.24 HOUR FORECAST WITHIN AREA BOUNDED BY 07N36W TO 07N43W TO 
08N46W TO 13N48W TO 14N46W TO 13N36W TO 07N36W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN MIXED NE AND SE SWELL.
.48 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 LEWITSKY. NATIONAL HURRICANE CENTER.