100 
FZNT02 KNHC 171506
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC SUN SEP 17 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SUN SEP 17.
24 HOUR FORECAST VALID 1200 UTC MON SEP 18.
48 HOUR FORECAST VALID 1200 UTC TUE SEP 19.

.WARNINGS.

...ATLC HURRICANE WARNING...
.TROPICAL STORM NIGEL NEAR 24.0N 49.1W 997 MB AT 1500 UTC SEP 17
MOVING NNW OR 330 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 50 KT
GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE
QUADRANT...60 NM SE QUADRANT...40 NM SW QUADRANT...AND 90 NM NW
QUADRANT.  SEAS 12 FT OR GREATER WITHIN 150 NM NE QUADRANT...105
NM SE QUADRANT...90 NM SW QUADRANT...AND 120 NM NW QUADRANT WITH
SEAS TO 20 FT. ELSEWHERE WITHIN 27N45W TO 28N50W TO 26N53W TO 
23N51W TO 21N45W TO 24N44W TO 27N45W WINDS 20 TO 33 KT. SEAS 8 TO
12 FT. REMAINDER OF AREA WITHIN 29N39W TO 26N45W TO 31N51W TO 
24N54W TO 19N46W TO 22N40W TO 29N39W WINDS 20 KT OR LESS. SEAS 8
TO 11 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE NIGEL NEAR 26.8N 51.7W. MAXIMUM 
SUSTAINED WINDS 75 KT GUSTS 90 KT. TROPICAL STORM FORCE WINDS 
WITHIN 130 NM NE QUADRANT...90 NM SE QUADRANT...80 NM SW 
QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
210 NM OF CENTER...EXCEPT 240 NM NE QUADRANT WITH SEAS TO 28 FT.
ELSEWHERE WITHIN 28N47W TO 31N50W TO 31N53W TO 27N55W TO 24N54W 
TO 24N48W TO 28N47W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER
OF AREA WITHIN 29N44W TO 31N58W TO 22N57W TO 20N52W TO 25N43W TO
29N44W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE NIGEL NEAR 29.8N 54.6W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS 
WITHIN 130 NM NE QUADRANT...120 NM SE QUADRANT...90 NM SW 
QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN
210 NM OF CENTER WITH SEAS TO 38 FT. ELSEWHERE WITHIN 31N50W TO 
31N58W TO 28N58W TO 26N53W TO 29N50W TO 31N50W WINDS 20 TO 33 KT.
SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 31N46W TO 31N50W TO 
26N55W TO 31N61W TO 20N59W TO 24N50W TO 31N46W WINDS 20 KT OR 
LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE NIGEL NEAR 34.2N 54.9W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE NIGEL NEAR 39.6N 49.0W. MAXIMUM 
SUSTAINED WINDS 85 KT GUSTS 105 KT.
.120 HOUR FORECAST HURRICANE NIGEL NEAR 46.5N 35.5W. MAXIMUM 
SUSTAINED WINDS 65 KT GUSTS 80 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 WITHIN 31N51W TO 30N69W TO 24N72W TO 23N65W TO 27N62W TO
26N54W TO 31N51W WINDS 20 KT OR LESS. SEAS TO 8 FT IN NW TO N
SWELL...EXCEPT N TO NE SWELL W OF 69W.
.24 HOUR FORECAST CONDITIONS MERGED WITH WARNING FEATURE.

.ATLC 24 HOUR FORECAST WITHIN 26N35W TO 25.5N35.5W TO 24.5N35.5W
TO 23.5N35.5W TO 23.5N35W TO 26N35W WINDS 20 KT OR LESS. SEAS 8
FT IN NE SWELL.
.48 HOUR FORECAST WITHIN 27N35W TO 25N39W TO 21N40W TO 20N39W TO
20N35W TO 27N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE 
SWELL.

.CARIBBEAN 06 HOUR FORECAST WITHIN 12N69W TO 13N72W TO 13N73W TO
11N73W TO 11N71W TO 11N69W TO 12N69W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST CONDITIONS IMPROVE. 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.