000
FZNT02 KNHC 042151
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
2230 UTC MON SEP 4 2023

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 MON SEP 4.
24 HOUR FORECAST VALID 1800 UTC TUE SEP  5.
48 HOUR FORECAST VALID 1800 UTC WED SEP  6.

.WARNINGS.

...ATLC GALE WARNING...
.LOW PRES NEAR 11.5N35W 1010 MB. WITHIN 14N35W TO 14N36W TO 
12N37W TO 10N37W TO 10N35W TO 14N35W N TO NE WINDS 20 TO 30 KT. 
SEAS BUILDING TO 8 FT TONIGHT.
.24 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 
13N41W 1007 MB. WITHIN 15N36W TO 16N36W TO 17N40W TO 14N42W TO 
12N42W TO 12N39W TO 15N36W E TO SE WINDS 20 TO 30 KT. SEAS 8 TO 
10 FT.
.42 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14N45W 1005 MB. WITHIN 15N43W TO 15N46W TO 14N46W TO 13N45W TO 
13N43W TO 15N43W WINDS 30 TO 35 KT. SEAS 9 TO 12 FT. ELSEWHERE
WITHIN 15N41W TO 17N43W TO 16N46W TO 12N46W TO 12N42W TO 15N41W 
WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. REMAINDER OF AREA WITHIN 
18N39W TO 18N44W TO 16N46W TO 12N46W TO 11N42W TO 12N39W TO 
18N39W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N SWELL.
.48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR
14N46W 1003 MB. WITHIN 16N44W TO 16N46W TO 15N47W TO 14N47W TO 
13N45W TO 13N44W TO 16N44W WINDS 30 TO 40 KT. SEAS 10 TO 14 FT.
ELSEWHERE WITHIN 17N43W TO 17N46W TO 15N48W TO 12N47W TO 12N42W 
TO 17N43W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA 
WITHIN 18N41W TO 19N45W TO 17N47W TO 13N48W TO 11N41W TO 14N39W 
TO 18N41W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N SWELL.

.SYNOPSIS AND FORECAST.

.POST-TROPICAL CYCLONE KATIA NEAR 28.0N 34.4W 1010 MB AT 2100
UTC SEP 04 MOVING NW OR 305 DEG AT 2 KT. MAXIMUM SUSTAINED WINDS
30 KT GUSTS 40 KT.  SEAS 12 FT OR GREATER WITHIN 90 NM N
SEMICIRCLE AND 0 NM S SEMICIRCLE WITH SEAS TO 12 FT. OVER
FORECAST WATERS WITHIN 31N35W TO 30N37W TO 27N37W TO 26N35W TO 
31N35W N TO NE WINDS 20 TO 25 KT. SEAS 9 TO 12 FT. ELSEWHERE 
WITHIN 31N35W TO 31N39W TO 25N39W TO 26N35W TO 31N35W WINDS 20 KT
OR LESS. SEAS 8 TO 10 FT IN NW TO N SWELL.
.12 HOUR FORECAST POST-TROPICAL REMNANT LOW KATIA NEAR 28.2N 
34.7W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT.
.24 HOUR FORECAST POST-TROPICAL REMNANT LOW KATIA NEAR 28.4N 
34.5W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. WITHIN 31N35W 
TO 31N37W TO 29N38W TO 27N37W TO 28N35W TO 31N35W WINDS 20 KT OR 
LESS. SEAS 8 TO 9 FT IN N SWELL.
.48 HOUR FORECAST POST-TROPICAL REMNANT LOW KATIA NEAR 27.5N 
33.7W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT. OVER FORECAST 
WATERS...CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 
8 FT.
.60 HOUR FORECAST POST-TROPICAL REMNANT LOW KATIA NEAR 26.5N 
33.5W. MAXIMUM SUSTAINED WINDS 20 KT GUSTS 30 KT.
.72 HOUR FORECAST...DISSIPATED.

.ATLC WITHIN 31N39W TO 30N75W TO 24N75W TO 18N68W TO 26N57W TO
24N39W TO 31N39W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN N 
SWELL...HIGHEST NEAR 31N57W.
.24 HOUR FORECAST WITHIN 31N45W TO 31N55W TO 26N54W TO 25N52W TO
31N45W WINDS 20 KT OR LESS. SEAS 8 FT IN NW SWELL.
.36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.CARIBBEAN 24 HOUR FORECAST WITHIN 14N69W TO 14N74W TO 11N75W TO
10N72W TO 11N68W TO 14N69W...INCLUDING THE GULF OF VENEZUELA... 
NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST WITHIN 13N69W TO 13N74W TO 11N73W TO 11N69W TO
13N69W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 
30 KT. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER HAGEN. NATIONAL HURRICANE CENTER.