000
FZNT02 KNHC 011532
HSFAT2

HIGH SEAS FORECAST
NWS NATIONAL HURRICANE CENTER MIAMI FL
1630 UTC FRI SEP 01 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 1200 UTC FRI SEP 01.
24 HOUR FORECAST VALID 1200 UTC SAT SEP 02.
48 HOUR FORECAST VALID 1200 UTC SUN SEP 03.

.WARNINGS.

...ATLC GALE WARNING...
...ATLC TROPICAL STORM WARNING...
.POST-TROPICAL CYCLONE IDALIA NEAR 31.9N 67.9W 998 MB AT 1500 
UTC SEP 01 MOVING ESE OR 110 DEG AT 15 KT. MAXIMUM SUSTAINED 
WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 210 
NM NE QUADRANT...150 NM SE QUADRANT...170 NM SW QUADRANT...AND 
200 NM NW QUADRANT. N OF 29N BETWEEN 68W AND 74W NW TO N WINDS 
30 TO 40 KT. SEAS 12 TO 20 FT. N OF 29N BETWEEN 65W AND 68W SW 
TO W WINDS 30 TO 35 KT. SEAS 12 TO 18 FT. ELSEWHERE N OF 28N 
BETWEEN 64W AND 76W SW TO W WINDS 20 TO 30 KT...EXCEPT NW TO N 
WINDS W OF 68W. SEAS 8 TO 12 FT. N OF 27N BETWEEN 76W AND 78W 
WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN N SWELL.
.12 HOUR FORECAST EXTRATROPICAL STORM IDALIA NEAR 31.3N 66.3W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.24 HOUR FORECAST TROPICAL STORM IDALIA NEAR 30.9N 64.9W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE 
WINDS WITHIN 160 NM NE QUADRANT...0 NM SE QUADRANT...70 NM SW 
QUADRANT...AND 130 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
300 NM NW AND 180 NM SE SEMICIRCLES WITH SEAS TO 18 FT. 
ELSEWHERE OVER FORECAST WATERS N OF 27N BETWEEN 62W AND 75W 
WINDS 20 TO 33 KT. SEAS 8 TO 12 FT N OF 25N BETWEEN 58W AND 78W 
AND E OF THE BAHAMAS.
.48 HOUR FORECAST TROPICAL STORM IDALIA NEAR 32.0N 61.8W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE 
WINDS WITHIN 140 NM NE QUADRANT...80 NM SE QUADRANT...60 NM SW 
QUADRANT...AND 90 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 
180 NM NW AND 120 NM SE SEMICIRCLES WITH SEAS WITH SEAS TO 20 FT.
OVER FORECAST WATERS N OF 27N BETWEEN 60W AND 72W WINDS 20 TO 33 
KT. SEAS 8 TO 12 FT N OF 25N BETWEEN 55W AND 70W...AND N OF 22N 
BETWEEN 70W AND 80W AND E OF THE BAHAMAS. 
.72 HOUR FORECAST TROPICAL STORM IDALIA NEAR 35.1N 58.2W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST EXTRATROPICAL LOW IDALIA NEAR 38.3N 57.2W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
.120 HOUR FORECAST EXTRATROPICAL LOW IDALIA POST-TROP/EXTRATROP 
NEAR 40.1N 57.1W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.

...ATLC TROPICAL STORM WARNING...
.TROPICAL DEPRESSION GERT NEAR 28.7N 54.4W 1008 MB AT 1500 UTC 
SEP 01 MOVING E OR 090 DEG AT 5 KT. MAXIMUM SUSTAINED WINDS 30 
KT GUSTS 40 KT. WITHIN 90 NM S AND 60 NM N SEMICIRCLES WINDS 20 
TO 30 KT. SEAS 8 TO 10 FT. 
.12 HOUR FORECAST TROPICAL STORM GERT NEAR 28.8N 53.6W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT.
.24 HOUR FORECAST TROPICAL STORM GERT NEAR 28.9N 52.9W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS 
WITHIN 0 NM OF CENTER EXCEPT 40 NM SE QUADRANT. SEAS 12 FT OR 
GREATER WITHIN 45 NM SE QUADRANT WITH SEAS TO 13 FT. ELSEWHERE 
WITHIN 90 NM SW AND 60 NM NE SEMICIRCLES WINDS 20 TO 33 KT. SEAS 
8 TO 12 FT. 
.48 HOUR FORECAST TROPICAL DEPRESSION GERT NEAR 30.5N 51.6W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 90 NM NE AND 
60 NM SW SEMICIRCLES WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. 
.72 HOUR FORECAST TROPICAL DEPRESSION GERT NEAR 35.4N 51.0W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST...DISSIPATED.

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 HURRICANE FRANKLIN WELL N OF AREA. ELSEWHERE N OF 25N 
BETWEEN 55W AND 66W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NW 
SWELL.
.06 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

CARIBBEAN FROM 11N TO 16N BETWEEN 70W AND 80W...INCLUDING THE 
GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 9 FT.
.24 HOUR FORECAST FROM 11N TO 13N BETWEEN 70W AND 76W... 
INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. 
SEAS TO 8 FT NEAR THE COAST OF COLOMBIA.
.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

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

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.