000
FZNT02 KNHC 250316
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
0430 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 0000 UTC SAT SEP 25.
24 HOUR FORECAST VALID 0000 UTC SUN SEP 26.
48 HOUR FORECAST VALID 0000 UTC MON SEP 27.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE SAM NEAR 12.4N 45.9W 982 MB AT 0300 UTC SEP 25 MOVING
WNW OR 285 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105
KT. TROPICAL STORM FORCE WINDS WITHIN 50 NM N SEMICIRCLE...40 NM
SE QUADRANT AND 30 NM SW QUADRANT.  SEAS 12 FT OR GREATER WITHIN
105 NM N SEMICIRCLE AND 75 NM S SEMICIRCLE WITH SEAS TO 23 FT.
ELSEWHERE WITHIN 11N45W TO 13N47W TO 14N47W TO 14N45W TO 13N44W TO
11N45W WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN
09N45W TO 11N48W TO 13N48W TO 17N44W TO 15N41W TO 09N45W 
WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE SAM NEAR 13.1N 48.8W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS 
WITHIN 70 NM E SEMICIRCLE...40 NM SW QUADRANT AND 60 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 13N47W TO 
11N49W TO 14N51W TO 15N50W TO 14N47W TO 13N47W WINDS 20 TO 33 KT.
SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 09N48W TO 11N53W TO 
16N52W TO 18N48W TO 15N46W TO 09N48W WINDS 20 KT OR LESS. SEAS 8 
TO 10 FT IN MIXED SWELL. 
.48 HOUR FORECAST HURRICANE SAM NEAR 14.1N 51.2W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS 
WITHIN 80 NM NW AND SE QUADRANTS...90 NM NE QUADRANT AND 60 NM SW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM N SEMICIRCLE AND 
120 NM S SEMICIRCLE WITH SEAS TO 34 FT. ELSEWHERE WITHIN 14N49W 
TO 12N51W TO 13N53W TO 15N53W TO 16N50W TO 14N49W WINDS 20 TO 33 
KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 10N50W TO 13N56W 
TO 17N56W TO 19N51W TO 18N48W TO 10N50W WINDS 20 KT OR LESS. SEAS
8 TO 10 FT IN MIXED SWELL. 
.72 HOUR FORECAST HURRICANE SAM NEAR 15.7N 53.5W. MAXIMUM
SUSTAINED WINDS 115 KT GUSTS 140 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE SAM NEAR 17.4N 55.8W. MAXIMUM
SUSTAINED WINDS 110 KT GUSTS 135 KT.
.120 HOUR FORECAST HURRICANE SAM NEAR 19.5N 58.8W. 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 ERA. NATIONAL HURRICANE CENTER.