####018007394####
FZNT01 KWBC 201610

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV 

NWS OCEAN PREDICTION CENTER WASHINGTON DC 

1630 UTC SAT APR 20 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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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 1200 UTC APR 20. 

24 HOUR FORECAST VALID 1200 UTC APR 21. 

48 HOUR FORECAST VALID 1200 UTC APR 22. 



.WARNINGS... 



...STORM WARNING... 

.INLAND LOW 58N67W 984 MB MOVING NE 20 KT. W OF A LINE FROM 

62N57W TO 56N52W TO 47N60W WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.

.18 HOUR FORECAST LOW 61N64W 979 MB. WITHIN 420 NM E AND NE 

QUADRANTS WINDS 35 TO 50 KT. SEAS 12 TO 20 FT. 

.24 HOUR FORECAST LOW 65N64W 994 MB. N OF 60N W OF 48W WINDS 30 

TO 45 KT. SEAS 11 TO 22 FT. ELSEWHERE N OF 52N W OF 46W WINDS 20 

TO 30 KT. SEAS 9 TO 17 FT.

.48 HOUR FORECAST LOW N OF AREA. N OF 63N W OF GREENLAND WINDS 

20 TO 30 KT. SEAS TO 12 FT. 



...GALE WARNING... 

.COMPLEX LOW WITH ONE CENTER 49N38W 1003 MB MOVING SE 20 KT AND 

A SECOND CENTER 45N33W 1006 MB MOVING NE 20 KT WILL TURN NW 

AFTER 12 HOURS. WITHIN 300 NM NW SEMICIRCLE OF FIRST CENTER 

WINDS 25 TO 35 KT. SEAS 9 TO 16 FT. ELSEWHERE WITHIN 540 NM N 

AND NE...480 NM SW...AND 420 NM NW QUADRANTS OF FIRST 

CENTER...AND WITHIN 600 NM S AND SW QUADRANTS OF SECOND CENTER 

WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.

.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 52N35W 1002 MB. 

WITHIN 180 NM SW AND 240 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 

9 TO 15 FT. ELSEWHERE FROM 39N TO 57N E OF 42W WINDS TO 25 KT. 

SEAS 8 TO 13 FT.

.48 HOUR FORECAST LOW AND CONDITIONS E OF AREA. 



...GALE WARNING... 

.COMPLEX LOW WITH MAIN CENTER 39N70W 1013 MB MOVING NE 30 KT. 

WITHIN 420 NM E AND SE QUADRANTS WINDS TO 25 KT. SEAS TO 9 FT.

.18 HOUR FORECAST LOW 46N60W 1003 MB. WITHIN 120 NM NE...AND 300 

NM S AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS TO 12 FT.

.24 HOUR FORECAST LOW 50N59W 1003 MB. WITHIN 420 NM S AND SE 

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

36N TO 52N BETWEEN 50W AND 60W WINDS 20 TO 30 KT. SEAS TO 12 FT. 

.48 HOUR FORECAST LOW DISSIPATED WITH NEW LOW INLAND 53N65W 997 

MB. WITHIN 180 NM N AND NE OF A LINE FROM 58N43W TO 58N51W TO 

64N56W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE N OF 57N 

BETWEEN 40W AND 59W WINDS 20 TO 30 KT. SEAS TO 12 FT.



...GALE WARNING...

.24 HOUR FORECAST LOW 31N37W 1011 MB. FROM 31N TO 34N E OF 43W 

WINDS TO 25 KT. SEAS TO 9 FT.

.48 HOUR FORECAST LOW E OF AREA 32N34W 1004 MB. FROM 31N TO 36N 

E OF 38W WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE FROM 31N 

TO 38N E OF 43W WINDS TO 25 KT. SEAS TO 11 FT.



...GALE WARNING... 

.36 HOUR FORECAST LOW 35N71W 1005 MB. WITHIN 180 NM S AND SE 

QUADRANTS WINDS 25 TO 35 KT. SEAS TO 11 FT.

.48 HOUR FORECAST LOW 38N63W 1006 MB. WITHIN 300 NM E AND 

NE...420 NM S...AND 180 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 8 

TO 15 FT. ELSEWHERE N OF 31N...WITHIN 420 NM E AND NE...360 NM 

SE...840 NM SW...AND 240 NM NW QUADRANTS...AND WITHIN 240 NM E 

AND SE OF A FRONT TO EXTEND FROM 40N53W TO 46N47W TO 52N49W 

WINDS 20 TO 30 KT. SEAS 8 TO 13 FT.



.SYNOPSIS AND FORECAST. 



.LOW 64N36W 996 MB MOVING NE 20 KT. WITHIN 540 NM S AND SW 

QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 FT.

.24 HOUR FORECAST LOW E OF AREA. N OF 59N E OF 44W SW WINDS TO 

25 KT. SEAS TO 11 FT.

.48 HOUR FORECAST CONDITIONS DESCRIBED IN SECOND GALE WARNING 

ABOVE. 



.N OF 65N BETWEEN THE W COAST OF GREENLAND AND 57W S WINDS TO 25 

KT. SEAS TO 9 FT.

.24 HOUR FORECAST CONDITIONS DESCRIBED IN STORM WARNING ABOVE.



.LIGHT TO MODERATE FREEZING SPRAY N OF 62N W OF GREENLAND AND N 

OF 63N E OF GREENLAND. 

.24 HOUR FORECAST CONDITIONS DIMINISHED. 



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 47N TO 51N 

BETWEEN 38W AND 43W.

.24 HOUR FORECAST DENSE FOG WITHIN 240 NM W OF A LINE FROM 

43N56W TO 55N53W TO 63N47W.

.48 HOUR FORECAST DENSE FOG FROM 44N TO 50N BETWEEN 46W AND 

53W...FROM 60N TO 62N BETWEEN 37W AND 48W...AND WITHIN 120 NM W 

OF A LINE FROM 53N47W TO 60N50W TO 64N56W. 



.FORECASTER MILLS. 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 SAT APR 20.

24 HOUR FORECAST VALID 1200 UTC SUN APR 21.

48 HOUR FORECAST VALID 1200 UTC MON APR 22.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.ATLC LOW PRES NEAR 25N53W 1014 MB WITH TROUGH TO NEAR 21N54W.

WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. WINDS HIGHER IN AND 

NEAR SCATTERED TSTMS FROM 24N TO 27N BETWEEN 40W AND 52W.

.24 HOUR FORECAST LOW PRES NEAR 30.5N37.5W 1009 MB. WITHIN 

28N40W TO 31N41W TO 31N42W TO 28N44W TO 26N44W TO 27N41W TO 

28N40W S TO SW WINDS 20 TO 25 KT...EXCEPT NW TO N WINDS 20 TO 25 

KT N OF 27N BETWEEN 41W AND 44W. SEAS 8 TO 9 FT.

.42 HOUR FORECAST LOW PRES JUST NE OF AREA NEAR 32N34W 1004 MB. 

WITHIN 31N35W TO 31N39W TO 27N41W TO 26N39W TO 29N35W TO 31N35W 

NW TO N WINDS 20 TO 30 KT. SEAS 8 TO 10 FT.

.48 HOUR FORECAST LOW PRES JUST NE OF AREA NEAR 32N34W 1004 MB. 

LITTLE CHANGE IN CONDITIONS.



.CARIBBEAN WITHIN 18N70W TO 18N71W TO 18N72W TO 17N72W TO 17N71W

TO 17N70W TO 18N70W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8

FT.

.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.18 HOUR FORECAST WITHIN 18N70W TO 18N71W TO 18N72W TO 17N72W TO 

17N71W TO 17N70W TO 18N70W NE TO E WINDS 20 TO 25 KT. SEAS LESS 

THAN 8 FT.

.24 HOUR FORECAST LITTLE CHANGE.

.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.



.GULF OF MEXICO 12 HOUR FORECAST WITHIN 22N87W TO 22N89W TO 

22N90W TO 21N90W TO 22N88W TO 22N87W NE TO E WINDS 20 TO 25 KT.

SEAS LESS THAN 8 FT.

.24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.36 HOUR FORECAST WITHIN 22N87W TO 22N89W TO 22N90W TO 21N90W TO 

22N88W TO 22N87W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.

.48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.



.GULF OF MEXICO 27 HOUR FORECAST COLD FRONT FROM 30N87W TO 

28N93W TO 26N97W. WITHIN 29N93W TO 30N93W TO 29N96W TO 28N97W TO 

26N97W TO 27N96W TO 29N93W N TO NE WINDS 20 TO 25 KT. SEAS LESS 

THAN 8 FT.

.42 HOUR FORECAST COLD FRONT FROM 30N83W TO 24N96W TO 21N97W. 

WITHIN 28N91W TO 30N92W TO 30N95W TO 26N97W TO 21N98W TO 28N91W 

N TO NE WINDS 20 TO 25 KT. SEAS TO 8 FT.

.48 HOUR FORECAST COLD FRONT FROM 27N82W TO 24N91W TO 19N95W. 

WITHIN 23N97W TO 25N95W TO 25N97W TO 22N98W TO 21N97W TO 19N96W 

TO 23N97W...INCLUDING WITHIN 60 NM OF COAST OF VERACRUZ...NW TO 

N WINDS 20 TO 25 KT. SEAS 8 FT.



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



$$

.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.