000
FZNT02 KNHC 210339
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC THU NOV 21 2019

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 NOV 21.
24 HOUR FORECAST VALID 0000 UTC FRI NOV 22.
48 HOUR FORECAST VALID 0000 UTC SAT NOV 23.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM SEBASTIEN NEAR 22.2N 61.5W 999 MB AT 0300 UTC 
NOV 21 MOVING N OR 010 DEG AT 6 KT. MAXIMUM SUSTAINED WINDS 50 
KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 0 NM W 
SEMICIRCLE...100 NM NE QUADRANT AND 140 NM SE QUADRANT.  SEAS 12 
FT OR GREATER WITHIN 210 NM NE QUADRANT...150 NM SE 
QUADRANT...30 NM SW QUADRANT...AND 120 NM NW QUADRANT WITH SEAS 
TO 22 FT. ELSEWHERE FROM 20N TO 26N BETWEEN 56W AND 64W WINDS 20 
TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST HURRICANE SEBASTIEN NEAR 25.5N 57.7W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM W SEMICIRCLE...100 NM NE QUADRANT AND 140 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM NE SEMICIRCLE WITH 
SEAS TO 25 FT. ELSEWHERE FROM 22N TO 30N BETWEEN 53W AND 59W AND 
N OF 30N BETWEEN 48W AND 54W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL SEBASTIEN NEAR 
31.0N 49.0W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. STORM 
FORCE WINDS WITHIN 30 NM NE QUADRANT...50 NM SE QUADRANT...30 NM 
SW QUADRANT...AND 30 NM NW QUADRANT. GALE FORCE WINDS WITHIN 100 
NM NE QUADRANT...140 NM SE QUADRANT...90 NM SW QUADRANT...AND 70 
NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM OF LOW 
CENTER EXCEPT 240 NM NE QUADRANT WITH SEAS TO 25 FT. ELSEWHERE N 
OF 28N BETWEEN 41W AND 50W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL SEBASTIEN NEAR 
37.0N 38.0W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 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 EXCEPT WHERE DESCRIBED ABOVE WITH TROPICAL STORM 
SEBASTIEN...N OF 10N AND E OF 66W WINDS 20 KT OR LESS. SEAS 8 TO 
11 FT IN MIXED SWELL...HIGHEST FROM 17N TO 25N AND E OF 49W.
.24 HOUR FORECAST S OF 27N AND E OF 51W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 FT...HIGHEST FROM 10N TO 18N AND E OF 45W. N OF 22N 
BETWEEN 48W AND 57W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN 
MIXED SWELL. 
.48 HOUR FORECAST S OF 16N AND E OF 47W WINDS 20 KT OR LESS. 
SEAS TO 9 FT IN N SWELL.

.ATLC COLD FRONT FROM 31N62W TO 24N72W TO 22N78W. N OF 30N 
BETWEEN 66W AND 69W W TO NW WINDS 20 TO 25 KT. SEAS 8 TO 10 FT. 
ELSEWHERE N OF 27N BETWEEN 65W AND 74W WINDS 20 KT OR LESS. SEAS 
TO 9 FT IN MIXED SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N57W TO 24N59W TO 18N60W.
FROM 23N TO 29N BETWEEN 57W AND 61W NW TO N WINDS 20 TO 25 KT. 
SEAS 9 TO 12 FT. ELSEWHERE N OF 20N BETWEEN THE FRONT AND 74W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N46W TO 26N52W THEN 
STATIONARY TO 19N59W. N OF 19N BETWEEN THE FRONT AND 68W WINDS 
20 KT OR LESS. SEAS 8 TO 11 FT...HIGHEST NEAR 30N60W.

.ATLC AND CARIBBEAN FROM 18N TO 20N BETWEEN 73W AND 75W N TO NE 
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 FROM 17N TO 19N BETWEEN 73W AND 75W N TO NE 
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT
.36 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 ERA. NATIONAL HURRICANE CENTER.