000
FZNT02 KNHC 180423
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 UTC MON SEP 18 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MON SEP 18.
24 HOUR FORECAST VALID 0000 UTC TUE SEP 19.
48 HOUR FORECAST VALID 0000 UTC WED SEP 20.

.WARNINGS.

...ATLC HURRICANE WARNING...
.TROPICAL STORM NIGEL NEAR 25.8N 50.2W 992 MB AT 0300 UTC SEP 18 
MOVING NNW OR 330 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 60 KT 
GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE 
QUADRANT...70 NM SE QUADRANT...50 NM SW QUADRANT...AND 90 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM NW AND SE 
QUADRANTS...210 NM NE QUADRANT AND 180 NM SW QUADRANT WITH SEAS 
TO 25 FT. ELSEWHERE WITHIN 240 NM NE QUADRANT...270 NM SE 
QUADRANT..180 NM SW QUADRANT AND 210 NM NM QUADRANT WINDS 20 TO 
33 KT. SEAS 8 TO 12 FT. 
.12 HOUR FORECAST HURRICANE NIGEL NEAR 27.0N 51.3W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
.24 HOUR FORECAST HURRICANE NIGEL NEAR 28.5N 52.8W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS 
WITHIN 100 NM NW AND SE QUADRANTS...130 NM NE QUADRANT AND 80 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM OF CENTER OF 
NIGEL...EXCEPT 240 NM NE QUADRANT WITH SEAS TO 34 FT. ELSEWHERE 
WITHIN 300 NM NE QUADRANT...270 NM SE QUADRANT...180 NM SW 
QUADRANT AND 240 NM NW QUADRANT WINDS 20 TO 33 KT. SEAS 9 TO 14 
FT. REMAINDER OF AREA FROM 20N TO 31N BETWEEN 44W AND 60W WINDS 
20 KT OR LESS. SEAS 8 TO 10 IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE NIGEL JUST N OF AREA NEAR 32.1N 
55.2W. MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL 
STORM FORCE WINDS WITHIN 140 NM E SEMICIRCLE...90 NM SW QUADRANT 
AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM OF 
CENTER...EXCEPT 270 NM NE QUADRANT WITH SEAS TO 38 FT. ELSEWHERE 
WITHIN 360 NM NE QUADRANT...300 NM SE QUADRANT AND 240 NM W 
SEMICIRCLE WINDS 20 TO 33 KT. SEAS 10 TO 14 FT. REMAINDER OF 
AREA FROM 24N TO 31N BETWEEN 47W AND 68W WINDS 20 KT OR LESS. 
SEAS 8 TO 10 IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE NIGEL NEAR 37.4N 52.5W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE NIGEL NEAR 43.1N 42.1W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL NIGEL NEAR 50.8N 
28.0W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT.

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 24 HOUR FORECAST FROM 20N TO 27N BETWEEN 35W AND 38W WINDS 
20 KT OR LESS. SEAS 8 FT IN NE SWELL.
.24 HOUR FORECAST FROM 20N TO 28N E OF 40W WINDS 20 KT OR LESS. 
SEAS 8 FT IN NE SWELL.
.48 HOUR FORECAST FROM 20N TO 25N E OF 41W WINDS 20 KT OR LESS. 
SEAS 8 FT IN NE SWELL.

.CARIBBEAN FROM 11N TO 13N BETWEEN 69W AND 73W...INCLUDING
THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS 
THAN 8 FT.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST LITTLE CHANGE.

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

$$
.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.