000
FZNT02 KNHC 180954
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0600 UTC MON SEP 18.
24 HOUR FORECAST VALID 0600 UTC TUE SEP 19.
48 HOUR FORECAST VALID 0600 UTC WED SEP 20.

.WARNINGS.

...ATLC HURRICANE WARNING...
.TROPICAL STORM NIGEL NEAR 26.5N 50.7W 984 MB AT 0900 UTC SEP 18 
MOVING NW OR 325 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 70 KT 
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 140 NM NE 
QUADRANT...90 NM SE QUADRANT...50 NM SW QUADRANT...AND 120 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM S SEMICIRCLE...210 
NM NE QUADRANT AND 150 NM NW QUADRANT WITH SEAS TO 26 FT. 
ELSEWHERE WITHIN 240 NM N SEMICIRCLE....270 NM SE QUADRANT AND 
180 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. 
.24 HOUR FORECAST HURRICANE NIGEL NEAR 29.1N 53.3W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS 
WITHIN 110 NM NW AND SE QUADRANTS...140 NM NE QUADRANT AND 90 NM 
SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM OF CENTER OF 
NIGEL...EXCEPT 240 NM NE QUADRANT WITH SEAS TO 38 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 10 TO 16 
FT. REMAINDER OF AREA FROM 20N TO 31N BETWEEN 44W AND 61W WINDS 
20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE NIGEL N OF AREA NEAR 33.1N 55.0W. 
MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM 
FORCE WINDS WITHIN 100 NM W SEMICIRCLE...140 NM NE QUADRANT AND 
150 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM OF 
CENTER WITH SEAS TO 36 FT. ELSEWHERE WITHIN 300 NM OF CENTER OF 
NIGEL WINDS 20 TO 33 KT. SEAS 10 TO 18 FT. REMAINDER OF AREA 
FROM 25N TO 31N BETWEEN 47W AND 66W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE NIGEL NEAR 38.5N 50.8W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE NIGEL NEAR 44.5N 37.3W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL NIGEL NEAR 51.5N 
21.5W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 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 18 HOUR FORECAST FROM 20N TO 27N BETWEEN 35W AND 39W WINDS 
20 KT OR LESS. SEAS 8 FT IN NE SWELL.
.24 HOUR FORECAST LITTLE CHANGE.
.48 HOUR FORECAST TROPICAL WAVE ALONG 40W S OF 22N. FROM 20N TO 
25N E OF 43W WINDS 20 KT OR LESS. SEAS TO 8 FT IN DECAYING 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.