000
FZNT02 KNHC 281003
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC SAT OCT 28.
24 HOUR FORECAST VALID 0600 UTC SUN OCT 29.
48 HOUR FORECAST VALID 0600 UTC MON OCT 30.

.WARNINGS.

...CARIBBEAN AND ATLANTIC TROPICAL STORM WARNING... 
.POTENTIAL TROPICAL CYCLONE EIGHTEEN NEAR 19.6N 84.2W 1005 MB AT
0900 UTC OCT 28 MOVING N OR 010 DEG AT 9 KT. MAXIMUM SUSTAINED 
WINDS 30 KT GUSTS 40 KT. WITHIN 120 NM E SEMICIRCLE WINDS 20 TO
30 KT. SEAS TO 9 FT. 
.24 HOUR FORECAST TROPICAL STORM EIGHTEEN NEAR 24.9N 80.1W. 
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 60 NM E SEMICIRCLE WITH 
SEAS TO 13 FT. ELSEWHERE FORECAST WATERS WITHIN 210 NM SE
SEMICIRCLE AND 120 NM W QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12
FT IN OPEN WATERS. 
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL EIGHTEEN NEAR 
34.2N 71.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL 
STORM FORCE WINDS WITHIN 150 NM E SEMICIRCLE...100 NM SW QUADRANT
AND 0 NM NW QUADRANT. COLD FRONT FROM 31N70W TO 21N74W. N OF 27N
W OF FRONT W TO NW WINDS 20 TO 25 KT. SEAS 8 TO 12 FT. N OF 27N E
OF FRONT TO 65W S TO SW WINDS 20 TO 25 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST...DISSIPATED. WINDS 20 KT OR LESS. SEAS LESS
THAN 8 FT OVER FORECAST WATERS.

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

...GULF OF MEXICO GALE WARNING...
.GULF OF MEXICO COLD FRONT FROM 29N92W TO 21N97W. W OF FRONT NW
WINDS 20 TO 30 KT. SEAS TO 9 FT.
.03 HOUR FORECAST COLD FRONT FROM 30N88W TO 21N97W. S OF 23N W OF
FRONT NW TO N WINDS 30 TO 35 KT. SEAS TO 9 FT. ELSEWHERE W OF
FRONT NW TO N WINDS 20 TO 30 KT. SEAS TO 9 FT.
.12 HOUR FORECAST COLD FRONT FROM 30N86W TO 20N95W TO 18N95W. S
OF 21N W OF FRONT NW TO N WINDS 30 TO 35 KT. SEAS 9 TO 13 FT.
ELSEWHERE W OF FRONT N WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. 
.24 HOUR FORECAST COLD FRONT FROM 29N83W TO 21N90W. S OF 21N W 
OF 95W NW TO N WINDS 25 TO 30 KT. SEAS 10 TO 12 FT. ELSEWHERE W 
OF FRONT NW TO N WINDS 20 TO 25 KT. SEAS 8 TO 10 FT W OF FRONT S 
OF 25N. 
.48 HOUR FORECAST COLD FRONT SE OF AREA. WINDS 20 KT OR LESS.
SEAS LESS THAN 8 FT.

.SYNOPSIS AND FORECAST.

.ATLC WITHIN AREA BOUNDED BY 31N45W TO 31N35W TO 29N35W TO 31N45W
WINDS 20 KT OR LESS. SEAS TO 9 FT IN N SWELL.
.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC 24 HOUR FORECAST COLD FRONT FROM 31N51W TO 24N55W. N OF 26N
WITHIN 240 NM E OF FRONT WINDS 20 KT OR LESS. SEAS TO 9 FT IN SE
SWELL.
.48 HOUR FORECAST DISSIPATING COLD FRONT FROM 31N48W TO 25N55W.
WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.ATLC FROM 10N TO 15N BETWEEN 38W AND 43W WINDS 20 KT OR LESS.
SEAS TO 8 FT IN N SWELL.
.24 HOUR FORECAST FROM 07N TO 12N BETWEEN 38W AND 45W WINDS 20
KT OR LESS. SEAS 8 FT IN E 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.

CONVECTION VALID AT 0930 UTC SAT OCT 28...

.POTENTIAL TROPICAL CYCLONE EIGHTEEN...SCATTERED MODERATE WITHIN
240 NM NE SEMICIRCLE AND 120 NM SW SEMICIRCLE.

$$
.FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.