000
FZNT02 KNHC 251615
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC SAT SEP 25.
24 HOUR FORECAST VALID 1200 UTC SUN SEP 26.
48 HOUR FORECAST VALID 1200 UTC MON SEP 27.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE SAM NEAR 12.9N 47.6W 960 MB AT 1500 UTC SEP 25 MOVING
WNW OR 285 DEG AT 9 KT. MAXIMUM SUSTAINED WINDS 105 KT GUSTS 130
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 90 NM E SEMICIRCLE AND 120 NM W
SEMICIRCLE WITH SEAS TO 28 FT. ELSEWHERE FROM 11N TO 16N BETWEEN
45W AND 50W WINDS 20 TO 33 KT. SEAS 9 TO 12 FT. REMAINDER OF 
AREA WITHIN 13N43W TO 09N48W TO 14N51W TO 18N49W TO 16N42W TO 
13N43W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N SWELL.
.24 HOUR FORECAST HURRICANE SAM NEAR 13.7N 49.8W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 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 WITH SEAS TO 31 FT. ELSEWHERE WITHIN 13N47W TO 
13N50W TO 15N52W TO 16N50W TO 16N47W TO 13N47W WINDS 20 TO 33 KT.
SEAS 9 TO 12 FT. REMAINDER OF AREA WITHIN 10N49W TO 13N56W TO 
17N55W TO 16N48W TO 14N51W TO 10N49W WINDS 20 KT OR LESS. SEAS 8 
TO 11 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE SAM NEAR 15.0N 51.9W. 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 N SEMICIRCLE AND 
150 NM S SEMICIRCLE WITH SEAS TO 34 FT. ELSEWHERE WITHIN 14N50W 
TO 14N53W TO 17N54W TO 18N52W TO 17N49W TO 14N50W WINDS 20 TO 33 
KT. SEAS 9 TO 12 FT. REMAINDER OF AREA WITHIN 10N52W TO 16N58W TO
20N54W TO 19N50W TO 16N54W TO 10N52W WINDS 20 KT OR LESS. SEAS 8
TO 11 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE SAM NEAR 16.6N 54.1W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE SAM NEAR 18.4N 56.5W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT.
.120 HOUR FORECAST HURRICANE SAM NEAR 20.7N 59.8W. 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 HAGEN. NATIONAL HURRICANE CENTER.