000
FZNT02 KNHC 231610
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC THU SEP 23 2021

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 THU SEP 23.
24 HOUR FORECAST VALID 1200 UTC FRI SEP 24.
48 HOUR FORECAST VALID 1200 UTC SAT SEP 25.

.WARNINGS.

...HURRICANE WARNING...
.TROPICAL STORM SAM NEAR 10.9N 38.1W 1003 MB AT 1500 UTC SEP 23
MOVING W OR 280 DEG AT 14 KT. MAXIMUM SUSTAINED WINDS 45 KT
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM N
SEMICIRCLE AND 0 NM S SEMICIRCLE.  SEAS 12 FT OR GREATER WITHIN
0 NM S SEMICIRCLE...60 NM NE QUADRANT AND 30 NM NW QUADRANT WITH
SEAS TO 13 FT. ELSEWHERE WITHIN 10N35W TO 10N41W TO 13N41W TO
15N38W TO 16N35W TO 10N35W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT.
.24 HOUR FORECAST TROPICAL STORM SAM NEAR 11.9N 42.9W. MAXIMUM 
SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL STORM FORCE WINDS 
WITHIN 60 NM NE QUADRANT...40 NM SE QUADRANT...0 NM SW 
QUADRANT...AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 90
NM SE AND NW QUADRANTS...120 NM NE QUADRANT...AND 30 NM SW 
QUADRANT WITH SEAS TO 17 FT. ELSEWHERE WITHIN 10N41W TO 10N43W TO
13N46W TO 15N44W TO 14N40W TO 10N41W WINDS 20 TO 33 KT. SEAS 9 
TO 12 FT. REMAINDER OF AREA WITHIN 13N35W TO 08N42W TO 12N46W TO 
18N44W TO 16N35W TO 13N35W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT 
IN N SWELL.
.36 HOUR FORECAST HURRICANE SAM NEAR 12.3N 45.0W. MAXIMUM 
SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM NE QUADRANT...40 NM SE QUADRANT...30 NM SW 
QUADRANT...AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
150 NM N SEMICIRCLE...120 NM SE QUADRANT...AND 90 NM SW QUADRANT 
WITH SEAS TO 22 FT. ELSEWHERE WITHIN 12N42W TO 10N46W TO 12N47W 
TO 16N45W TO 14N42W TO 12N42W WINDS 20 TO 33 KT. SEAS 9 TO 12 FT.
REMAINDER OF AREA WITHIN 12N39W TO 08N43W TO 14N49W TO 18N46W TO
17N38W TO 12N39W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N 
SWELL.
.48 HOUR FORECAST HURRICANE SAM NEAR 12.7N 46.7W. MAXIMUM 
SUSTAINED WINDS 80 KT GUSTS 100 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM NE QUADRANT...60 NM SE QUADRANT...40 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
120 NM SE AND NW QUADRANTS...150 NM NE QUADRANT...AND 90 NM SW 
QUADRANT WITH SEAS TO 24 FT. ELSEWHERE WITHIN 10N46W TO 11N49W TO
14N49W TO 15N47W TO 14N43W TO 10N46W WINDS 20 TO 33 KT. SEAS 10 
TO 12 FT. REMAINDER OF AREA WITHIN 12N41W TO 09N45W TO 09N50W TO 
18N49W TO 16N42W TO 12N41W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT 
IN N SWELL.
.72 HOUR FORECAST HURRICANE SAM NEAR 13.7N 49.4W. MAXIMUM 
SUSTAINED WINDS 100 KT GUSTS 120 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE SAM NEAR 15.3N 52.1W. MAXIMUM 
SUSTAINED WINDS 105 KT GUSTS 130 KT.
.120 HOUR FORECAST HURRICANE SAM NEAR 17.4N 55.2W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 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 POST-TROPICAL CYCLONE ROSE NEAR 26N42W 1010 MB. WITHIN 
24N38W TO 25N41W TO 27N42W TO 29N41W TO 28N37W TO 24N38W WINDS 
20 TO 30 KT. SEAS 9 TO 12 FT. ELSEWHERE WITHIN 26N35W TO 23N49W 
TO 28N51W TO 31N62W TO 31N35W TO 26N35W WINDS 20 KT OR LESS. SEAS
8 TO 10 FT IN N SWELL.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW ROSE NEAR 28N41W 
1011 MB. WITHIN 28N38W TO 26N39W TO 26N41W TO 29N41W TO 30N38W TO
28N38W S TO SW WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. WITHIN 
29N52W TO 28N53W TO 31N57W TO 31N50W TO 29N52W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN NE SWELL. 
.48 HOUR FORECAST WITHIN 30N35W TO 30N35.5W TO 30.5N35.5W TO 
31N35.5W TO 31N35W TO 30N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NW
SWELL.

.GULF OF MEXICO 03 HOUR FORECAST COLD FRONT FROM 27N83W TO
19N96W. WITHIN 20N95W TO 19N95W TO 19N96W TO 20N96W TO 
20N95W...INCLUDING WITHIN 60 NM OF VERACRUZ...NW TO N WINDS 20 
TO 25 KT. SEAS 8 TO 9 FT.
.18 HOUR FORECAST STATIONARY FRONT FROM 27N82W TO 21N95W TO 
18N95W. 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 HAGEN. NATIONAL HURRICANE CENTER.