FZNT01 KWBC 210340

HSFAT1



HIGH SEAS FORECAST FOR METAREA IV

NWS OCEAN PREDICTION CENTER WASHINGTON DC

0430 UTC SUN JUN 21 2026



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SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS 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).



FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE 

THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).



SECURITE



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



ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS



SYNOPSIS VALID 0000 UTC JUN 21. 

24 HOUR FORECAST VALID 0000 UTC JUN 22.

48 HOUR FORECAST VALID 0000 UTC JUN 23.



.WARNINGS.



...GALE WARNING... 

.LOW 42N51W 1000 MB MOVING NE 35 KT. WITHIN 300 NM E AND SE

SEMICIRCLES WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE

CONDITIONS DESCRIBED BELOW WITH SECOND GALE WARNING.

.24 HOUR FORECAST LOW DISSIPATED AND ASSOCIATED CONDITIONS MERGED

WITH LOW 53N43W DESCRIBED BELOW.



...GALE WARNING... 

.COMPLEX LOW WITH FIRST CENTER 48N59W 989 MB MOVING E 10

KT...SECOND CENTER 49N54W 990 MB MOVING NE 05 KT...AND THIRD

CENTER 48N47W 994 MB MOVING N 15 KT. FROM 35N TO 55N BETWEEN 37W

AND 70W WINDS 25 TO 35 KT. SEAS TO 4 M.

.06 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 50N45W 990 MB.

WITHIN 300 NM NE AND 420 NM SE QUADRANTS WINDS 25 TO 40 KT. SEAS

2.5 TO 4.5 M.

.24 HOUR FORECAST COMPLEX LOW WITH MAIN CENTER 53N43W 991 MB.

FROM 45N TO 60N E OF 55W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.

ELSEWHERE FROM 34N TO 45N E OF 58W WINDS LESS THAN 25 KT. SEAS TO

3 M.

.48 HOUR FORECAST LOW 54N38W 999 MB WITH OTHER CENTERS

DISSIPATED. FROM 45N TO 60N E OF 48W WINDS TO 25 KT. SEAS TO 4 M.



.SYNOPSIS AND FORECAST.



.24 HOUR FORECAST LOW 64N56W 1003 MB. FROM 60N TO 66N W OF 49W

WINDS TO 25 KT. SEAS TO 2.5 M.

.48 HOUR FORECAST LOW 61N55W 1008 MB. BETWEEN 90 NM AND 240 NM W

SEMICIRCLE WINDS TO 25 KT. SEAS TO 2.5 M. 



.48 HOUR FORECAST FROM 35N TO 44N W OF 72W WINDS TO 25 KT. SEAS

LESS THAN 2.5 M.



.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 53N

BETWEEN 41W AND 58W AND N OF 65N W OF GREENLAND.

.24 HOUR FORECAST DENSE FOG FROM 48N TO 51N BETWEEN 46W AND 55W

AND FROM 62N TO 66N BETWEEN 51W AND 61W.

.48 HOUR FORECAST DENSE FOG WITHIN 60 NM NW OF A LINE FROM 55N43W

TO 57N40W TO 58N35W AND FROM 60N TO 65N BETWEEN 53W AND 61W.



.FORECASTER JOSEPH. OCEAN PREDICTION CENTER.



NWS NATIONAL HURRICANE CENTER MIAMI FL



ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND

GULF OF AMERICA



SYNOPSIS VALID 0000 UTC SUN JUN 21.

24 HOUR FORECAST VALID 0000 UTC MON JUN 22.

48 HOUR FORECAST VALID 0000 UTC TUE JUN 23.



.WARNINGS.



.NONE.



.SYNOPSIS AND FORECAST.



.ATLC WITHIN 15N55W TO 16N57W TO 16N59W TO 13N59W TO 13N57W TO

14N55W TO 15N55W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN E SWELL. 

.24 HOUR FORECAST WITHIN 14N56W TO 14N60W TO 13N61W TO 12N60W TO

10N56W TO 10N54W TO 14N56W WINDS 20 KT OR LESS. SEAS TO 2.5 M IN

E SWELL.

.48 HOUR FORECAST WITHIN 13N48W TO 15N53W TO 17N60W TO 12N61W TO

09N59W TO 08N54W TO 12N48W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M 

IN E SWELL.



.ATLC WITHIN 20.5N70.5W TO 20.5N71W TO 20.5N72W TO 20N72W TO 

20N71.5W TO 20N70.5W TO 20.5N70.5W E WINDS 20 TO 25 KT. SEAS LESS

THAN 2.5 M.

.12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.18 HOUR FORECAST WITHIN 20.5N70.5W TO 20.5N71W TO 20.5N72W TO 

20N72W TO 20N71.5W TO 20N70.5W TO 20.5N70.5W E WINDS 20 TO 25 KT.

SEAS LESS THAN 2.5 M.

.24 HOUR FORECAST LITTLE CHANGE.

.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.42 HOUR FORECAST WITHIN 20.5N70.5W TO 20.5N71W TO 20.5N72W TO 

20N72W TO 20N71.5W TO 20N70.5W TO 20.5N70.5W E WINDS 20 TO 25 KT.

SEAS LESS THAN 2.5 M.

.48 HOUR FORECAST LITTLE CHANGE.



.CARIBBEAN WITHIN 15N71W TO 16N72W TO 17N77W TO 13N79W TO 11N78W

TO 11N70W TO 15N71W NE TO E WINDS 20 TO 25 KT...EXCEPT 25 TO 30

KT IN THE GULF OF VENEZUELA. SEAS 2.5 TO 3 M...EXCEPT LESS THAN 

2.5 M IN THE GULF OF VENEZUELA.

.24 HOUR FORECAST WITHIN 16N70W TO 17N72W TO 16N79W TO 14N81W TO

11N80W TO 12N72W TO 11N70W TO 16N70W...INCLUDING IN THE GULF OF 

VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 TO 3 M...EXCEPT 

LESS THAN 2.5 M IN THE GULF OF VENEZUELA.

.48 HOUR FORECAST WITHIN 15N68W TO 18N71W TO 17N77W TO 13N79W TO

11N78W TO 11N69W TO 15N68W...INCLUDING IN THE GULF OF 

VENEZUELA...E WINDS 20 TO 30 KT. SEAS 2.5 TO 30 M...EXCEPT LESS 

THAN 2.5 M IN THE GULF OF VENEZUELA.



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

16N85W TO 17N85W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.

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

16N85W TO 17N85W...INCLUDING IN THE GULF OF HONDURAS...E TO SE 

WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.

.48 HOUR FORECAST LITTLE CHANGE.



.GULF OF AMERICA 24 HOUR FORECAST WITHIN 23N88W TO 24N90W TO

21N92W TO 20N92W TO 20N91W TO 21N90W TO 23N88W...INCLUDING

WITHIN 60 NM OF COAST OF CAMPECHE...NE TO E WINDS 20 TO 25 KT. 

SEAS LESS THAN 2.5 M.

.36 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.48 HOUR FORECAST WITHIN 23N88W TO 24N90W TO 21N92W TO 20N92W TO

20N91W TO 21N90W TO 23N88W...INCLUDING WITHIN 60 NM OF COAST OF 

CAMPECHE...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.



.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.





.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.



$$