000
FZNT02 KNHC 252126
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SAT SEP 25 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1800 UTC SAT SEP 25.
24 HOUR FORECAST VALID 1800 UTC SUN SEP 26.
48 HOUR FORECAST VALID 1800 UTC MON SEP 27.

.WARNINGS.

...ATLANTIC HURRICANE WARNING...
.HURRICANE SAM NEAR 13.3N 48.5W 943 MB AT 2100 UTC SEP 25 MOVING
WNW OR 290 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 120 KT GUSTS 145
KT. TROPICAL STORM FORCE WINDS WITHIN 70 NM NE QUADRANT...90 NM 
SE QUADRANT...40 NM SW QUADRANT...AND 60 NM NW QUADRANT. SEAS 12 
FT OR GREATER WITHIN 120 NM OF CENTER EXCEPT 90 NM SE QUADRANT 
WITH SEAS TO 29 FT. ELSEWHERE WITHIN 12N46W TO 12N48W TO 13N50W 
TO 15N49W TO 15N47W TO 12N46W WINDS 20 TO 33 KT. SEAS 9 TO 12 FT.
REMAINDER OF AREA WITHIN 13N45W TO 09N48W TO 09N50W TO 16N52W TO
18N47W TO 13N45W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED 
SWELL. 
.24 HOUR FORECAST HURRICANE SAM NEAR 14.3N 50.5W. MAXIMUM 
SUSTAINED WINDS 125 KT GUSTS 150 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM NE QUADRANT...90 NM SE QUADRANT...50 NM SW 
QUADRANT...AND 70 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
120 NM OF CENTER WITH SEAS TO 32 FT. ELSEWHERE WITHIN 14N48W TO 
13N49W TO 14N52W TO 16N52W TO 16N49W TO 14N48W WINDS 20 TO 33 KT.
SEAS 9 TO 12 FT. REMAINDER OF AREA WITHIN 12N47W TO 09N50W TO 
15N57W TO 21N52W TO 19N48W TO 12N47W WINDS 20 KT OR LESS. SEAS 8 
TO 11 FT IN MIXED SWELL. 
.48 HOUR FORECAST HURRICANE SAM NEAR 15.7N 52.7W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM E SEMICIRCLE...60 NM SW QUADRANT AND 80 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM IN N SEMICIRCLE AND
120 NM IN S SEMICIRCLE WITH SEAS TO 34 FT. ELSEWHERE WITHIN 
14N51W TO 14N53W TO 17N54W TO 18N53W TO 17N50W TO 14N51W WINDS 20
TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA WITHIN 15N49W TO 
09N55W TO 16N59W TO 22N56W TO 22N52W TO 15N49W WINDS 20 KT OR 
LESS. SEAS 8 TO 11 FT IN MIXED SWELL. 
.72 HOUR FORECAST HURRICANE SAM NEAR 17.4N 55.0W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE SAM NEAR 19.5N 58.0W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT.
.120 HOUR FORECAST HURRICANE SAM NEAR 22.5N 61.0W. 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.

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

$$
.FORECASTER AREINHART. NATIONAL HURRICANE CENTER.