303 
FZNT02 KNHC 220900
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 UTC FRI NOV 22 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC FRI NOV 22.
24 HOUR FORECAST VALID 0600 UTC SAT NOV 23.
48 HOUR FORECAST VALID 0600 UTC SUN NOV 24.

.WARNINGS.

...ATLC TROPICAL STORM WARNING...
.TROPICAL STORM SEBASTIEN NEAR 24.8N 57.0W 999 MB AT 0900 UTC
NOV 22 MOVING ENE OR 065 DEG AT 13 KT. MAXIMUM SUSTAINED WINDS
50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE
QUADRANT...140 NM SE QUADRANT...50 NM SW QUADRANT...AND 70 NM NW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM NW AND SE 
QUADRANTS...180 NM NE QUADRANT AND 120 NM SW QUADRANT WITH SEAS 
TO 26 FT. ELSEWHERE WITHIN 180 NM E SEMICIRCLE AND 90 NM W
SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST TROPICAL STORM SEBASTIEN NEAR 27.2N 51.7W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 60 NM W SEMICIRCLE...90 NM NE QUADRANT AND 110 NM SE
QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM NE QUADRANT...120
NM SE QUADRANT...75 NM SW QUADRANT...AND 150 NM NW QUADRANT WITH
SEAS TO 29 FT. ELSEWHERE WITHIN 150 NM NE QUADRANT...210 NM SW
QUADRANT 90 NM SW QUADRANT AND 120 NM NW QUADRANT WINDS 20 TO 33
KT. SEAS 8 TO 12 FT.
.48 HOUR FORECAST POST-TROPICAL SEBASTIEN NEAR 30.0N 46.2W. 
MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE 
WINDS WITHIN 0 NM W SEMICIRCLE...70 NM NE QUADRANT AND 80 NM SE 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM NE QUADRANT...90 NM
SE QUADRANT...60 NM SW QUADRANT...AND 75 NM NW QUADRANT WITH SEAS
TO 15 FT. ELSEWHERE WITHIN 120 NM E SEMICIRCLE AND 60 NM W
SEMICIRCLE WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.72 HOUR FORECAST POST-TROPICAL REMNANT LOW SEBASTIEN NEAR 33.3N
38.4W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 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 COLD FRONT FROM 31N54W TO 24N60W TO 18N65W. ELSEWHERE 
EXCEPT AS NOTED ABOVE...E OF FRONT TO A LINE FROM 31N48W TO 
23N52W TO 22N56W TO 24N59W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
REMAINDER OF AREA N OF 18N E OF FRONT TO A LINE FROM 31N46W TO
22N50W TO 18N61W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED NE
AND SE SWELL. N OF 22N W OF FRONT TO 68W NW TO N WINDS 20 TO 25
KT. SEAS 10 TO 18 FT IN MIXED N AND SE SWELL...HIGHEST NEAR 
26N59W. ELSEWHERE W OF FRONT TO A LINE FROM 31N73W TO 25N76W TO 
19N69W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED NE AND SE 
SWELL.
.24 HOUR FORECAST COLD FRONT FROM 31N49W TO 29N53W TO 22N54W TO
17N62W. ELSEWHERE EXCEPT AS NOTED ABOVE...N OF 22N W OF FRONT TO
67W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED NW AND SE
SWELL...EXCEPT 11 TO 19 FT N OF 28N E OF 59W. N OF 25N E OF FRONT
TO 45W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SW AND NW
SWELL.
.48 HOUR FORECAST COLD FRONT FROM 31N47W TO 29N48W TO 27N46W TO 
23N53W THEN DISSIPATING STATIONARY TO 19N56W TO 17N61W. 
ELSEWHERE EXCEPT AS NOTED ABOVE...N OF 27N E OF FRONT TO 39W
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SW AND NW SWELL. N
OF 25N W OF FRONT TO 55W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN
MIXED SWELL.

.ATLC FROM 11N TO 13N BETWEEN 40W AND 43W NE TO E WINDS 20 TO 25
KT. SEAS 9 TO 11 FT IN MIXED N AND SE SWELL. ELSEWHERE S OF 27N E
OF 49W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED N AND SE
SWELL.
.24 HOUR FORECAST S OF 19N E OF 44W WINDS 20 KT OR LESS. SEAS 8
TO 11 FT IN MIXED N AND SE SWELL.
.48 HOUR FORECAST S OF 15N E OF 45W WINDS 20 KT OR LESS. SEAS 8
TO 10 FT IN MIXED NE AND SE SWELL.

.ATLC 48 HOUR FORECAST N OF 29N BETWEEN 76W AND 81W SW WINDS 20
TO 25 KT. SEAS 8 TO 10 FT.

.CARIBBEAN WITHIN 45 NM EITHER SIDE OF A LINE FROM 20N74W TO
16N77W...INCLUDING THE WINDWARD PASSAGE...NE WINDS 20 TO 25 KT.
SEAS LESS THAN 8 FT. WITHIN 45 NM EITHER SIDE OF A LINE FROM
18N69W TO 16N71W NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.12 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.