####018006770####
FZNT01 KWBC 290425 CCA

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

0430 UTC MON APR 29 2024 



CCODE/1:31:04:01:00/AOE/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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 0000 UTC APR 29. 

24 HOUR FORECAST VALID 0000 UTC APR 30. 

48 HOUR FORECAST VALID 0000 UTC MAY 01. 



.WARNINGS. 



...GALE WARNING... 

.LOW 38N54W 997 MB MOVING NE 10 KT THEN TURNING NW 15 KT AFTER 

24 HOURS. WITHIN 420 NM SW SEMICIRCLE...AND 300 NM E AND NE OF 

FRONT FROM 42N51W TO 36N46W TO 31N46W WINDS 25 TO 40 KT. SEAS 12 

TO 23 FT. 

.24 HOUR FORECAST COMPLEX LOW WITH MAIN  LOW 41N49W 996 MB AND 

SECOND LOW 45N54W 994 MB. WITHIN 240 NM NE AND 300 NM SE 

QUADRANTS OF MAIN LOW AND 360 NM NW QUADRANT OF SECOND LOW 25 TO 

40 KT. SEAS 8 TO 19 FT. ELSEWHERE WITHIN 180 NM E AND NE OF 

FRONT FROM 48N48W TO 40N40W TO 31N42W WINDS 25 TO 35 KT. SEAS 9 

TO 16 FT. 

.48 HOUR FORECAST LOW 45N53W 996 MB. WITHIN 300 NM W AND 360 NM 

SW QUADRANTS...AND 240 NM E AND NE OF FRONT FROM 49N46W TO 

44N38W TO 38N37W WINDS 25 TO 35 KT. SEAS 8 TO 15 FT. 



...GALE WARNING... 

.N OF 64N BETWEEN 52W AND 56W AREA OF S WINDS 25 TO 35 KT. SEAS 

8 TO 13 FT. 

.12 HOUR FORECAST LOW 62N57W 1012 MB. WITHIN 180 NM W 

SEMICIRCLE...AND N OF 58N BETWEEN 48W AND 55W WINDS 25 TO 40 KT. 

SEAS 8 TO 14 FT.

.24 HOUR FORECAST LOW 68N55W 1014 MB N OF AREA. N OF 66N W OF 

GREENLAND WINDS 20 TO 30 KT. SEAS TO 9 FT. 

.30 HOUR FORECAST LOW AND CONDITIONS N OF AREA. 



...GALE WARNING... 

.24 HOUR FORECAST NEW LOW 35N59W 1009 MB. N OF 31N...WITHIN 420 

NM SW QUADRANT WINDS 20 TO 30 KT. SEAS TO 12 FT. 

.48 HOUR FORECAST LOW 35N48W 1004 MB. WITHIN 300 NM S AND SE 

QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. 



...HEAVY FREEZING SPRAY WARNING... 

.LIGHT TO MODERATE FREEZING SPRAY W OF A LINE FROM 60N58W TO 

66N56W. 

.24 HOUR FORECAST MODERATE TO HEAVY FREEZING SPRAY W OF A LINE 

FROM 62N56W TO 65N56W. ELSEWHERE LIGHT TO MODERATE FREEZING 

SPRAY W OF A LINE FROM 57N59W TO 64N53W TO 67N56W. 

.48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF A LINE 

FROM 60N60W TO 62N50W.  



.SYNOPSIS AND FORECAST. 



.WITHIN 90 NM NW OF A LINE FROM 58N41W TO 63N36W WINDS 20 TO 30 

KT. SEAS 8 TO 12 FT. 

.12 HOUR FORECAST LOW AND CONDITIONS E OF AREA. 



.48 HOUR FORECAST WITHIN 120 NM SE OF A LINE FROM 63N35W TO 

60N44W WINDS 20 TO 30 KT. SEAS TO 9 FT. 



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 90 NM W AND 

NW OF A LINE FROM 60N60W TO 62N55W TO 64N53W TO 60N55W...AND 

FROM 41N TO 49N BETWEEN 45W AND 58W.

.24 HOUR FORECAST DENSE FOG N OF 61N BETWEEN 50W AND 55W...AND 

FROM 43N TO 54N BETWEEN 44W AND 57W...AND FROM 55N TO 58N 

BETWEEN 52W AND 57W.  

.48 HOUR FORECAST DENSE FOG FROM 44N TO 54N BETWEEN 40W AND 

59W...AND FROM 55N TO 59N W OF 50W.  



.FORECASTER ROWLAND. 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 0000 UTC MON APR 29.

24 HOUR FORECAST VALID 0000 UTC TUE APR 30.

48 HOUR FORECAST VALID 0000 UTC WED MAY  1.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.ATLC COLD FRONT FROM 31N45W TO 21N66W. WITHIN 31N49W TO 31N59W 

TO 30N57W TO 30N49W TO 31N49W W TO NW WINDS 20 TO 25 KT. SEAS 10 

TO 13 FT. ELSEWHERE WITHIN 31N40W TO 31N45W TO 30N44W TO 29N41W 

TO 30N40W TO 31N40W SE TO S WINDS 20 TO 25 KT. SEAS 9 TO 10 FT. 

REMAINDER OF AREA WITHIN 31N37W TO 30N71W TO 25N77W TO 19N65W TO 

31N37W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL.

.24 HOUR FORECAST STATIONARY FRONT FROM 31N42W TO 20N61W. WITHIN

31N49W TO 31N63W TO 30N59W TO 29N54W TO 30N50W TO 31N49W W WINDS

20 TO 25 KT. SEAS 11 TO 14 FT. ELSEWHERE WITHIN 31N36W TO 31N67W

TO 26N77W TO 19N68W TO 18N61W TO 24N47W TO 31N36W WINDS 20 KT OR

LESS. SEAS 8 TO 11 FT IN N SWELL.

.48 HOUR FORECAST STATIONARY FRONT DISSIPATED. WITHIN 31N44W TO 

31N56W TO 29N57W TO 29N53W TO 30N45W TO 31N44W W WINDS 20 TO 25 

KT. SEAS 10 TO 13 FT. ELSEWHERE WITHIN 31N35W TO 31N65W TO 27N59W

TO 19N67W TO 19N59W TO 23N47W TO 31N35W WINDS 20 KT OR LESS. 

SEAS 8 TO 10 FT IN NW TO N SWELL.



.ATLC 12 HOUR FORECAST WITHIN 30N35W TO 30N36W TO 29N36W TO

26N36W TO 26N35W TO 30N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NE

TO E SWELL.

.24 HOUR FORECAST WITHIN 26N35W TO 25N36W TO 24N36W TO 21N36W TO

20N35W TO 26N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL.

.48 HOUR FORECAST WITHIN 22N35W TO 21N38W TO 14N37W TO 10N39W TO

07N37W TO 07N35W TO 22N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NE

SWELL.



.ATLC AND CARIBBEAN WITHIN 20N71W TO 21N72W TO 21N75W TO 20N75W

TO 20N77W TO 18N75W TO 20N71W NE TO E WINDS 20 TO 25 KT. SEAS 

LESS THAN 8 FT.

.24 HOUR FORECAST WITHIN 20N71W TO 21N73W TO 20N74W TO 20N76W TO

19N76W TO 19N74W TO 20N71W NE TO E WINDS 20 TO 25 KT. SEAS LESS 

THAN 8 FT.

.48 HOUR FORECAST LITTLE CHANGE.



.GULF OF MEXICO WITHIN 31N88W TO 28N97W TO 20N93W TO 23N80W TO 

31N88W E TO SE WINDS 20 TO 25 KT. SEAS 8 TO 10 FT.

.24 HOUR FORECAST WITHIN 22N88W TO 23N88W TO 22N91W TO 19N93W TO

19N91W TO 21N90W TO 22N88W NE TO E WINDS 20 TO 25 KT. SEAS LESS 

THAN 8 FT.

.48 HOUR FORECAST LITTLE CHANGE.



.CARIBBEAN WITHIN 17N85W TO 18N86W TO 18N87W TO 16N87W TO 17N86W

TO 16N84W TO 17N85W E WINDS 20 TO 30 KT. SEAS LESS THAN 8

FT. ELSEWHERE WITHIN 21N84W TO 21N86W TO 19N85W TO 20N84W TO 

21N84W WINDS 20 KT OR LESS. SEAS 8 FT IN E SWELL.

.24 HOUR FORECAST WITHIN 17N85W TO 18N86W TO 18N87W TO 16N87W TO

17N86W TO 16N84W TO 17N85W E WINDS 20 TO 25 KT. SEAS LESS THAN 8

FT.

.48 HOUR FORECAST WITHIN 17N85W TO 17N86W TO 17N87W TO 16N87W TO

16N84W TO 17N85W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.



.CARIBBEAN WITHIN 18N70W TO 18N71W TO 18N73W TO 17N73W TO 17N71W

TO 18N70W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.24 HOUR FORECAST LITTLE CHANGE.

.48 HOUR FORECAST LITTLE CHANGE.



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



$$

.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.