FZNT01 KWBC 011607
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1630 UTC FRI SEP 01 2023 

CCODE/2:31:04:11:00/AOE+AOW/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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. 

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE 
NATIONAL WEATHER SERVICE. EMAIL US AT 
VOSOPS@NOAA.GOV(LOWERCASE). 

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH 
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP 
(ALL LOWERCASE). 

SECURITE 

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W 

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS 

SYNOPSIS VALID 1200 UTC SEP 01. 
24 HOUR FORECAST VALID 1200 UTC SEP 02. 
48 HOUR FORECAST VALID 1200 UTC SEP 03. 

.WARNINGS. 

...HURRICANE WARNING...
.HURRICANE FRANKLIN NEAR 38.7N 55.6W 985 MB AT 1500 UTC SEP 01 
MOVING NE OR 050 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 65 KT 
GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE...160 
NM SE...120 NM S...AND 220 NM NW QUADRANTS. SEAS 12 FT OR 
GREATER WITHIN 360 NM N SEMICIRCLE AND 270 NM S SEMICIRCLE WITH 
SEAS TO 30 FT. ELSEWHERE WITHIN 360 NM E AND 480 NM W 
SEMICIRCLES WINDS 20 TO 33 KT. SEAS 8 TO 15 FT.
.24 HOUR FORECAST POST-TROPICAL CYCLONE FRANKLIN NEAR 42.5N 
47.8W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM 
FORCE WINDS WITHIN 200 NM NE...190 NM SE...150 NM SW...AND 180 
NM NW QUADRANTS. SEAS 12 FT OR GREATER WITHIN 420 NM E 
SEMICIRCLE... AND 600 NM SW AND 360 NM NW QUADRANTS WITH SEAS TO 
38 FT. ELSEWHERE FROM 36N TO 48N E OF 57W WINDS 20 TO 33 KT. 
SEAS 8 TO 14 FT. 
.48 HOUR FORECAST POST-TROPICAL CYCLONE FRANKLIN NEAR 46.5N 
39.0W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. TROPICAL STORM 
FORCE WINDS WITHIN 170 NM NE AND SW QUADRANTS...AND 180 NM SE 
AND NW QUADRANTS. SEAS 12 FT OR GREATER WITHIN 360 NM NE...540 
NM SE...660 NM SW AND 300 NM NW QUADRANTS WITH SEAS TO 36 FT. 
ELSEWHERE FROM 41N TO 52N E OF 46W WINDS 20 TO 33 KT. SEAS 8 TO 
12 FT.
.72 HOUR FORECAST POST-TROPICAL CYCLONE FRANKLIN NEAR 48.6N 
31.5W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL CYCLONE FRANKLIN NEAR 49.0N 
28.0W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST POST-TROPICAL CYCLONE FRANKLIN NEAR 49.5N 
22.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.

...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...150 NM SE...170 NM SW...AND 200 NM NW QUADRANTS. SEAS 12 
FT OR GREATER WITHIN 360 NM W SEMICIRCLE...AND 300 NM NE AND 240 
NM SE QUADRANTS WITH SEAS TO 21 FT. ELSEWHERE EXCEPT WHERE NOTED 
ABOVE WITH HURRICANE FRANKLIN WITHIN 480 NM N SEMICIRCLE...AND 
300 NM SE AND 420 NM SW QUADRANTS WINDS 20 TO 33 KT. SEAS 8 TO 
15 FT.
.24 HOUR FORECAST TROPICAL STORM LOW IDALIA NEAR 30.9N 64.9W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM FORCE 
WINDS WITHIN 160 NM NE...70 NM SW...AND 130 NM NW QUADRANTS. 
SEAS 12 FT OR GREATER WITHIN 540 NM NE AND 420 NM NW QUADRANTS 
WITH SEAS TO 18 FT. ELSEWHERE S OF A LINE FROM 42N57W TO 33N76W 
WINDS 20 TO 33 KT. SEAS 8 TO 14 FT.
.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...80 NM SE...60 NM SW...AND 90 NM NW 
QUADRANTS. SEAS 12 FT OR GREATER WITHIN 180 NM E 
SEMICIRCLE...AND 420 NM SW AND 300 NM NW QUADRANTS WITH SEAS TO 
20 FT. ELSEWHERE FROM 31N TO 37N BETWEEN 59W AND 71W...AND FROM 
34N TO 38N BETWEEN 59W AND 47W WINDS 20 TO 30 KT. SEAS 8 TO 14 
FT.
.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 POST-TROPICAL CYCLONE IDALIA NEAR 38.3N 57.2W. 
MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
.120 HOUR FORECAST POST-TROPICAL CYCLONE IDALIA NEAR 40.1N 
57.1W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.

...TROPICAL STORM WARNING...
.TROPICAL STORM JOSE NEAR 36.0N 50.9W 999 MB AT 1500 UTC SEP 01 
MOVING NNE OR 015 DEG AT 20 KT. MAXIMUM SUSTAINED WINDS 45 KT 
GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM E 
SEMICIRCLE. SEAS 12 FT OR GREATER WITHIN 90 NM OF CENTER EXCEPT 
75 NM NW QUADRANT WITH SEAS TO 14 FT. ELSEWHERE EXCEPT WHERE 
NOTED ABOVE WITH HURRICANE FRANKLIN FROM 33N TO 41N BETWEEN 47W 
AND 53W WINDS 20 TO 33 KT. SEAS 8 TO 14 FT.
.24 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.

...STORM WARNING... 
.LOW 58N42W 964 MB MOVING NE 20 KT. WITHIN 300 NM S 
SEMICIRCLE... AND WITHIN 60 NM W OF A LINE FROM 63N39W TO 58N43W 
WINDS 45 TO 60 KT. SEAS 17 TO 34 FT...EXCEPT W OF THE 
AFOREMENTIONED LINE 9 TO 17 FT. ELSEWHERE WITHIN 540 NM E...AND 
480 NM S AND W QUADRANTS...AND WITHIN 90 NM OF THE E COAST OF 
GREENLAND WINDS 30 TO 45 KT. SEAS 12 TO 23 FT. ALSO E OF A LINE 
FROM 66N58W TO 56N56W TO 46N42W WINDS 25 TO 35 KT. SEAS 8 TO 15 
FT.
.24 HOUR FORECAST LOW JUST E OF AREA 66N32W 960 MB. WITHIN 150 
NM S OF A LINE FROM 61N35W TO 60N44W TO 61N48W WINDS 45 TO 60 
KT. SEAS 18 TO 38 FT. ELSEWHERE WITHIN 540 NM SW AND 120 NM NW 
QUADRANTS WINDS 30 TO 45 KT. SEAS 10 TO 20 FT. ALSO E OF A LINE 
FROM 66N57W TO 52N48W WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.
.48 HOUR FORECAST LOW E OF THE AREA 66N33W 974 MB. FROM 58N TO 
60N E OF 44W WINDS 40 TO 55 KT. SEAS 17 TO 30 FT. ELSEWHERE 
WITHIN 540 NM SW AND 120 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 
10 TO 20 FT. 

.SYNOPSIS AND FORECAST. 

.48 HOUR FORECAST TROPICAL DEPRESSION GERT NEAR 30.5N 51.6W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. FROM 31N TO 33N 
BETWEEN 53W AND 48W WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. 

.48 HOUR FORECAST W OF A LINE FROM 65N64W TO 59N56W AREA OF SE 
WINDS TO 25 KT. SEAS LESS THAN 8 FT.

.DENSE FOG. 48 HOUR FORECAST VSBY OCCASIONALLY LESS THAN 1 NM W 
OF A LINE FROM 63N65W TO 58N59W.

.FORECASTER CLARK. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

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.