FZNT01 KWBC 011022
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV 
NWS OCEAN PREDICTION CENTER WASHINGTON DC 
1030 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0600 UTC SEP 01. 
24 HOUR FORECAST VALID 0600 UTC SEP 02. 
48 HOUR FORECAST VALID 0600 UTC SEP 03. 

.WARNINGS. 

...HURRICANE WARNING...
.HURRICANE FRANKLIN NEAR 37.8N 57.0W 983 MB AT 0900 UTC SEP 01
MOVING ENE OR 060 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 140 NM S
SEMICIRCLE...120 NM NE QUADRANT AND 80 NM NW QUADRANT.	SEAS 12
FT OR GREATER WITHIN 360 NM NE QUADRANT...270 NM SE
QUADRANT...220 NM SW QUADRANT...AND 300 NM NW QUADRANT WITH SEAS
TO 38 FT. ELSEWHERE FROM 32N TO 41N BETWEEN 49W AND 62W WINDS 20 
TO 33 KT. SEAS TO 12 FT. 
.24 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FRANKLIN NEAR
41.2N 49.8W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL
STORM FORCE WINDS WITHIN 150 NM NE AND SW QUADRANTS...180 NM NW
QUADRANT AND 160 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 
360 NM NE...210 NM SE...220 NM SW...AND 310 NM NW QUADRANTS WITH 
SEAS TO 36 FT. ELSEWHERE FROM 34N TO 47N BETWEEN 38W AND 60W 
WINDS 20 TO 33 KT. SEAS TO 12 FT. 
.48 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FRANKLIN NEAR
45.7N 41.1W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 KT. TROPICAL
STORM FORCE WINDS WITHIN 200 NM OF CENTER EXCEPT 170 NM SW
QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM OF CENTER...EXCEPT 
420 NM SW QUADRANT WITH SEAS TO 32 FT. ELSEWHERE FROM 37N TO 50N 
BETWEEN 35W AND 51W WINDS 20 TO 33 KT. SEAS TO 12 FT.
.72 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FRANKLIN NEAR
48.4N 32.8W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FRANKLIN NEAR
50.3N 27.9W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT.
.120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL FRANKLIN NEAR
51.6N 25.0W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.

...TROPICAL STORM WARNING... 
.TROPICAL STORM JOSE NEAR 33.9N 52.0W 997 MB AT 0900 UTC SEP 01
MOVING N OR 05 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 50 KT GUSTS
60 KT. TROPICAL STORM FORCE WINDS WITHIN 40 NM E SEMICIRCLE...30
NM SW QUADRANT AND 0 NM NW QUADRANT. SEAS 12 FT OR GREATER
WITHIN 90 NM E SEMICIRCLE...60 NM SW QUADRANT AND 30 NM NW
QUADRANT WITH SEAS TO 15 FT. ELSEWHERE WITHIN 120 NM NE QUADRANT 
WINDS 20 TO 33 KT. SEAS TO 11 FT.
.12 HOUR FORECAST TROPICAL STORM JOSE NEAR 37.0N 51.2W. MAXIMUM
SUSTAINED WINDS 45 KT GUSTS 55 KT.
.24 HOUR FORECAST...DISSIPATED.

...TROPICAL STORM WARNING...
.POST-TROPICAL CYCLONE IDALIA NEAR 32.6N 69.8W 998 MB AT 0900
UTC SEP 01 MOVING ESE OR 110 DEG AT 14 KT. MAXIMUM SUSTAINED
WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 200
NM N SEMICIRCLE AND 180 NM S SEMICIRCLE. SEAS 12 FT OR GREATER
WITHIN 240 NM E SEMICIRCLE AND 300 NM W SEMICIRCLE WITH SEAS TO
25 FT. ELSEWHERE FROM 31N TO 44N W OF 68W WINDS 20 TO 33 KT. 
SEAS TO 12 FT.
.12 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IDALIA NEAR 31.8N
67.9W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.24 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IDALIA NEAR 31.0N
66.3W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM
FORCE WINDS WITHIN 160 NM NE QUADRANT...0 NM SE QUADRANT...90 NM
SW QUADRANT...AND 150 NM NW QUADRANT. SEAS 12 FT OR GREATER 
WITHIN 240 NM NE...240 NM SE...300 NM SW...AND 330 NM NW 
QUADRANTS WITH SEAS TO 20 FT. ELSEWHERE FROM 31N TO 41N BETWEEN 
60W AND 77W WINDS 20 TO 33 KT. SEAS TO 12 FT. 
.48 HOUR FORECAST TROPICAL STORM IDALIA NEAR 31.7N 63.6W.
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE
WINDS WITHIN 40 NM S SEMICIRCLE...130 NM NE QUADRANT AND 100 NM
NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM N SEMICIRCLE 
WITH SEAS TO 16 FT. ELSEWHERE FROM 31N TO 38N BETWEEN 56W AND 
72W WINDS 20 TO 33 KT. SEAS TO 12 FT. 
.72 HOUR FORECAST TROPICAL STORM IDALIA NEAR 34.6N 60.2W.
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST EXTRATROPICAL LOW IDALIA POST-TROP/EXTRATROP
NEAR 37.0N 58.7W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST EXTRATROPICAL LOW IDALIA POST-TROP/EXTRATROP
NEAR 38.5N 59.3W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. 

...STORM WARNING... 
.LOW 56N46W 964 MB MOVING NE 25 KT. WITHIN 300 NM S 
SEMICIRCLE...WITHIN 240 NM NW OF A FRONT FROM THE LOW TO 57N48W 
TO 57N42W...AND BETWEEN 300 NM AND 540 NM E QUADRANT WINDS 40 TO 
55 KT. SEAS 15 TO 24 FT. ELSEWHERE WITHIN 780 NM NE...660 NM 
SE...300 NM SW AND 420 NM NW QUADRANTS WINDS 25 TO 40 KT. SEAS 
10 TO 18 FT. 
.24 HOUR FORECAST LOW JUST E OF AREA NEAR 64N33W 959 MB. WITHIN 
480 NM SW QUADRANT WINDS 40 TO 55 KT. SEAS 20 TO 33 FT. 
ELSEWHERE WITHIN 840 NM SW AND W QUADRANTS WINDS 25 TO 40 KT. 
SEAS 11 TO 22 FT. 
.48 HOUR FORECAST LOW E OF THE AREA NEAR 65N33W 970 MB. WITHIN 
480 NM SW QUADRANT WINDS 35 TO 50 KT. SEAS 18 TO 32 FT. 
ELSEWHERE N OF A LINE FROM 60N50W TO 56N44W TO 54N35W WINDS 25 
TO 40 KT. SEAS 12 TO 20 FT. 

.SYNOPSIS AND FORECAST. 

.48 HOUR FORECAST TROPICAL DEPRESSION GERT NEAR 30.7N 52.2W.
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. FROM 31N TO 37N 
BETWEEN 56W AND 47W WINDS 20 TO 30 KT. SEAS TO 12 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 360 NM E OF 
A LINE FROM 55N50W TO 44N54W. 
.24 HOUR FORECAST DENSE FOG N OF 63N E OF GREENLAND. 
.48 HOUR FORECAST CONDITIONS IMPROVED. 

.FORECASTER MUSONDA. 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 0600 UTC FRI SEP 1.
24 HOUR FORECAST VALID 0600 UTC SAT SEP  2.
48 HOUR FORECAST VALID 0600 UTC SUN SEP  3.

.WARNINGS.

...ATLC GALE WARNING...
...ATLC TROPICAL STORM WARNING...
.POST-TROPICAL CYCLONE IDALIA NEAR 32.6N 69.8W 998 MB AT 0900 
UTC SEP 01 MOVING ESE OR 110 DEG AT 14 KT. MAXIMUM SUSTAINED 
WINDS 50 KT GUSTS 60 KT. TROPICAL STORM FORCE WINDS WITHIN 200 NM
N SEMICIRCLE AND 180 NM S SEMICIRCLE. WITHIN 31N68.5W TO 31N74W 
TO 30.5N73.5W TO 30N71.5W TO 30N70W TO 31N68.5W W WINDS 30 TO 40 
KT. SEAS 12 TO 20 FT. ELSEWHERE WITHIN 31N65W TO 31N70W TO 31N75W
TO 29N73W TO 28N69W TO 29N67W TO 31N65W W WINDS 20 TO 30 KT. 
SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 31N75W TO 31N78W TO 
29N75W TO 28N72W TO 28N70W TO 29N73W TO 31N75W WINDS 20 KT OR 
LESS. SEAS 8 TO 10 FT IN MIXED SWELL.
.12 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IDALIA NEAR 31.8N 
67.9W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.24 HOUR FORECAST POST-TROPICAL EXTRATROPICAL IDALIA NEAR 31.0N 
66.3W. MAXIMUM SUSTAINED WINDS 40 KT GUSTS 50 KT. TROPICAL STORM 
FORCE WINDS WITHIN 160 NM NE QUADRANT...0 NM SE QUADRANT...90 NM 
SW QUADRANT...AND 150 NM NW QUADRANT. WITHIN 31N67.5W TO 31N68.5W
TO 30.5N68.5W TO 30.5N68W TO 30.5N67.5W TO 31N67.5W NW TO N 
WINDS 30 TO 35 KT. SEAS 12 TO 18 FT. ELSEWHERE WITHIN 31N63W TO 
31N72W TO 28N70W TO 28N64W TO 31N63W W TO NW WINDS 20 TO 30 KT. 
SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 31N59W TO 28N70W TO 
31N73W TO 31N80W TO 25N75W TO 25N66W TO 31N59W... INCLUDING 
ATLANTIC EXPOSURES...WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN 
MIXED SWELL.
.48 HOUR FORECAST TROPICAL STORM IDALIA NEAR 31.7N 63.6W. 
MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE 
WINDS WITHIN 40 NM S SEMICIRCLE...130 NM NE QUADRANT AND 100 NM 
NW QUADRANT. SEAS 12 FT OR GREATER S OF 31N WITHIN 200 NM SW 
QUADRANT AND 105 NM SE QUADRANT WITH SEAS TO 15 FT. ELSEWHERE 
WITHIN 31N59W TO 31N68W TO 30N67W TO 28N63W TO 28N62W TO 31N59W 
WINDS 20 TO 33 KT. SEAS 10 TO 12 FT. REMAINDER OF AREA WITHIN 
31N57W TO 30N80W TO 24N74W TO 24N68W TO 28N59W TO 
31N57W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR LESS. SEAS
8 TO 10 FT IN MIXED SWELL.
.72 HOUR FORECAST TROPICAL STORM IDALIA NEAR 34.6N 60.2W. 
MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT.
EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE.
.96 HOUR FORECAST EXTRATROPICAL LOW IDALIA POST-TROP/EXTRATROP 
NEAR 37.0N 58.7W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.
.120 HOUR FORECAST EXTRATROPICAL LOW IDALIA POST-TROP/EXTRATROP 
NEAR 38.5N 59.3W. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

...ATLC TROPICAL STORM WARNING...
.TROPICAL DEPRESSION GERT NEAR 28.7N 55.0W 1008 MB AT 0900 UTC 
SEP 01 MOVING E OR 090 DEG AT 7 KT. MAXIMUM SUSTAINED WINDS 30 KT
GUSTS 40 KT. WITHIN 29N54W TO 29N56W TO 28N56W TO 27N56W TO 
27N55W TO 28N54W TO 29N54W WINDS 20 TO 30 KT. SEAS 8 FT
.12 HOUR FORECAST TROPICAL STORM GERT NEAR 28.7N 54.0W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT.
.24 HOUR FORECAST TROPICAL STORM GERT NEAR 29.1N 53.1W. MAXIMUM 
SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS 
WITHIN 0 NM N SEMICIRCLE AND 40 NM S SEMICIRCLE. WITHIN 29N52W TO
30N54W TO 28N54W TO 28N53W TO 29N52W WINDS 20 TO 33 KT. SEAS 8 
TO 11 FT.
.36 HOUR FORECAST TROPICAL DEPRESSION GERT NEAR 29.7N 52.6W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT.
.48 HOUR FORECAST TROPICAL DEPRESSION GERT NEAR 30.7N 52.2W. 
MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. WITHIN 31N50W TO 
31N53W TO 30N53W TO 29N52W TO 29N51W TO 30N50W TO 31N50W WINDS 20
TO 30 KT. SEAS 8 TO 10 FT.
.72 HOUR FORECAST TROPICAL DEPRESSION GERT NEAR 34.7N 51.7W. 
MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 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 NEAR 37.8N 57.0W 983 MB AT 0900 UTC SEP 
01
MOVING ENE OR 060 DEG AT 16 KT. MAXIMUM SUSTAINED WINDS 70 KT
GUSTS 85 KT. TROPICAL STORM FORCE WINDS N OF AREA. WITHIN 31N53W
TO 31N62W TO 29N59W TO 29N56W TO 31N53W WINDS 20 KT OR LESS. 
SEAS 8 TO 9 FT IN NW SWELL.
.12 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

.CARIBBEAN WITHIN 13N70W TO 15N72W TO 15N75W TO 14N76W TO 12N76W
TO 11N70W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...E WINDS 
20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST WITHIN 13N73W TO 14N75W TO 13N76W TO 11N76W TO
11N74W TO 12N73W TO 13N73W NE TO E WINDS 20 TO 25 KT. SEAS 8 TO 
9 FT.
.48 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS 
LESS THAN 8 FT.

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

$$
.FORECASTER AREINHART. NATIONAL HURRICANE CENTER.