000
FZNT02 KNHC 241540
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC FRI SEP 24 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 FRI SEP 24.
24 HOUR FORECAST VALID 1200 UTC SAT SEP 25.
48 HOUR FORECAST VALID 1200 UTC SUN SEP 26.

.WARNINGS.

...HURRICANE WARNING...
.HURRICANE SAM NEAR 11.8N 43.7W 993 MB AT 1500 UTC SEP 24 MOVING
W OR 280 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80
KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM NW AND SE
QUADRANTS...50 NM NE QUADRANT AND 30 NM SW QUADRANT.  SEAS 12 FT
OR GREATER WITHIN 30 NM S SEMICIRCLE...90 NM NE QUADRANT AND 60
NM NW QUADRANT WITH SEAS TO 21 FT. ELSEWHERE WITHIN 11N42W TO 
10N45W TO 12N46W TO 14N44W TO 13N41W TO 11N42W WINDS 20 TO 33 KT.
SEAS 9 TO 12 FT. REMAINDER OF AREA WITHIN 14N38W TO 09N42W TO 
13N46W TO 18N43W TO 16N39W TO 14N38W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN N SWELL.
.24 HOUR FORECAST HURRICANE SAM NEAR 12.3N 47.1W. MAXIMUM 
SUSTAINED WINDS 90 KT GUSTS 110 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM NE QUADRANT...60 NM SE QUADRANT...40 NM SW 
QUADRANT...AND 50 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
120 NM N SEMICIRCLE AND 90 NM S SEMICIRCLE WITH SEAS TO 29 FT. 
ELSEWHERE WITHIN 10N46W TO 11N49W TO 13N49W TO 15N48W TO 14N44W 
TO 10N46W WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA 
WITHIN 10N44W TO 09N50W TO 14N51W TO 18N48W TO 15N43W TO 10N44W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED N AND E SWELL.
.48 HOUR FORECAST HURRICANE SAM NEAR 13.1N 49.7W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT. TROPICAL STORM FORCE WINDS 
WITHIN 90 NM E SEMICIRCLE...60 NM SW QUADRANT AND 70 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 34 FT. 
ELSEWHERE WITHIN 12N47W TO 10N50W TO 12N52W TO 16N50W TO 15N47W 
TO 12N47W WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF AREA 
WITHIN 12N46W TO 08N49W TO 11N55W TO 18N53W TO 18N49W TO 12N46W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE SAM NEAR 14.6N 52.1W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE SAM NEAR 16.4N 54.8W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT.
.120 HOUR FORECAST HURRICANE SAM NEAR 18.2N 57.7W. 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 WITHIN 28N51W TO 28N54W TO 30N57W TO 31N63W TO 31N48W TO
28N51W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.CARIBBEAN 42 HOUR FORECAST WITHIN 12N74W TO 11N75W TO 11N77W TO
13N77W TO 13N74W TO 12N74W NE TO E WINDS 20 TO 25 KT. SEAS LESS
THAN 8 FT.
.48 HOUR FORECAST WITHIN 12N74W TO 11N75W TO 11N77W TO 13N77W TO
13N74W TO 12N74W NE TO E WINDS 20 TO 25 KT. SEAS 8 FT.

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

$$
.FORECASTER HAGEN. NATIONAL HURRICANE CENTER.