241 
FZNT02 KNHC 042059
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC SAT SEP 4 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 4.
24 HOUR FORECAST VALID 1800 UTC SUN SEP  5.
48 HOUR FORECAST VALID 1800 UTC MON SEP  6.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE LARRY NEAR 17.4N 47.1W 958 MB AT 2100 UTC SEP 04
MOVING WNW OR 300 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 110 KT
GUSTS 135 KT. TROPICAL STORM FORCE WINDS WITHIN 140 NM NE
QUADRANT...120 NM SE QUADRANT...70 NM SW QUADRANT...AND 130 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM N SEMICIRCLE
AND 240 NM S SEMICIRCLE WITH SEAS TO 42 FT. ELSEWHERE WITHIN 13N45W
TO 14N48W TO 21N50W TO 22N46W TO 18N42W TO 13N45W WINDS 20 TO 33
KT. SEAS 12 TO 18 FT. REMAINDER OF AREA WITHIN 13N39W TO 11N50W 
TO 21N53W TO 24N50W TO 22N41W TO 13N39W WINDS 20 KT OR LESS. SEAS
8 TO 12 FT IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE LARRY NEAR 19.8N 50.6W. MAXIMUM 
SUSTAINED WINDS 120 KT GUSTS 145 KT. TROPICAL STORM FORCE WINDS 
WITHIN 140 NM E SEMICIRCLE...90 NM SW QUADRANT AND 130 NM NW 
QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM WITH SEAS TO 46 
FT. ELSEWHERE WITHIN 19N46W TO 16N49W TO 22N55W TO 24N52W TO
22N47W TO 19N46W WINDS 20 TO 33 KT. SEAS 12 TO 18 FT. REMAINDER
OF AREA WITHIN 19N43W TO 13N53W TO 15N57W TO 25N55W TO 27N49W
TO 19N43W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE LARRY NEAR 22.2N 54.0W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT. TROPICAL STORM FORCE WINDS 
WITHIN 150 NM NE QUADRANT...140 NM SE QUADRANT...100 NM SW 
QUADRANT...AND 130 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
300 NM NE AND 270 NM SW SEMICIRCLES WITH SEAS TO 48 FT. ELSEWHERE
WITHIN 19N50W TO 18N53W TO 21N57W TO 24N58W TO 26N53W TO 19N50W 
WINDS 20 TO 33 KT. SEAS 12 TO 18 FT. REMAINDER OF AREA WITHIN 
21N46W TO 16N53W TO 16N61W TO 24N63W TO 30N49W TO 21N46W WINDS 20
KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL.
.72 HOUR FORECAST HURRICANE LARRY NEAR 24.7N 57.0W. MAXIMUM 
SUSTAINED WINDS 115 KT GUSTS 140 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST HURRICANE LARRY NEAR 28.3N 59.9W. MAXIMUM 
SUSTAINED WINDS 110 KT GUSTS 135 KT.
.120 HOUR FORECAST HURRICANE LARRY NEAR 33.4N 61.9W. MAXIMUM 
SUSTAINED WINDS 95 KT GUSTS 115 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 CHRISTENSEN. NATIONAL HURRICANE CENTER.