National Weather Service Marine Forecast FZNT01 KWBC

FZNT01 KWBC 160332
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED SEP 16 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CCODE/1:31:04:01:00/AOE/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS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 SEP 16. 24 HOUR FORECAST VALID 0000 UTC SEP 17. 48 HOUR FORECAST VALID 0000 UTC SEP 18.

.WARNINGS.

STORM WARNING

.LOW 62N36W 984 MB MOVING NE 20 KT AND INTENSIFYING. WITHIN 120 NM NW AND N OF A LINE FROM 61N38W TO 65N35W WINDS 35 TO 50 KT. SEAS 3.5 TO 5.5 M. ELSEWHERE WITHIN 840 NM S...600 NM SW AND 480 NM W QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 5 M...HIGHEST S QUADRANT. .24 HOUR FORECAST LOW WELL E OF AREA 64N17W 975 MB. FROM 53N TO 60N E OF 45W AND FROM 60N TO 62N E OF GREENLAND WINDS 20 TO 30 KT. SEAS 3 TO 6 M IN MIXED SWELL...HIGHEST NEAR 59N35W. .48 HOUR FORECAST LOW WELL E OF THE AREA AND CONDITIONS DESCRIBED BELOW WITH NEW LOW 62N35W 984 MB.

GALE WARNING

.24 HOUR FORECAST NEW COMPLEX LOW WITH MAIN LOW 59N58W 994 MB. FROM 53N TO 62N E OF 43W...FROM 52N TO 58N W OF 43W AND WITHIN 120 NM W OF GREENLAND FROM 61N TO 64N WINDS 20 TO 30 KT. SEAS TO 3.5 M. .30 HOUR FORECAST COMBINED LOW 60N52W 991 MB. WITHIN 120 NW W AND NW OF A LINE FROM 55N56W TO 60N60W TO THE COAST OF LABRADOR WINDS 25 TO 35 KT. SEAS TO 3.5 M. .48 HOUR FORECAST LOW 62N35W 984 MB. WITHIN 360 NM SW AND W OF A LINE FROM 54N40W TO 63N52W WINDS 25 TO 35 KT. SEAS 3.5 TO 5.5 M...HIGHEST NEAR 56N50W. ELSEWHERE N OF 60N E OF GREENLAND...BETWEEN 240 NM AND 960 NM S QUADRANT...FROM 50N TO 58N W OF 35W...FROM 58N TO 60N W OF 44W AND N OF 60N W OF GREENLAND WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M IN MIXED SWELL.

.SYNOPSIS AND FORECAST.

.COMPLEX LOW WITH MAIN CENTER 38N61W 1016 MB MOVING NE 30 KT. WITHIN 180 NM W AND NW OF A FRONT FROM 30N69W TO THE LOW TO 42N57W WINDS 20 TO 30 KT. SEAS TO 3 M. .24 HOUR FORECAST FIRST LOW DISSIPATED WITH NEW LOW 35N63W 1020 MB. FROM 31N TO 34N W OF 70W WINDS LESS THAN 25 KT. SEAS TO 2.5 M. .48 HOUR FORECAST LOW DISSIPATED AND CONDITIONS DIMINISHED.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 120 NM NW OF A LINE FROM 44N51W TO 49N41W AND N OF 60N E OF GREENLAND. .24 HOUR FORECAST DENSE FOG WITHIN 240 NM NW OF A LINE FROM 42N58W TO 49N39W...FROM 58N TO 60N W OF 56W TO THE COAST OF LABRADOR AND WITHIN 180 NM W OF THE COAST OF GREENLAND FROM 60N TO 64N. .48 HOUR FORECAST DENSE FOG WITHIN 90 NM NW OF A LINE FROM 42N49W TO 46N39W AND N OF 64N E OF GREENLAND.

.FORECASTER FUTTERMAN. 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 WED SEP 16. 24 HOUR FORECAST VALID 0000 UTC THU SEP 17. 48 HOUR FORECAST VALID 0000 UTC FRI SEP 18.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC STATIONARY FRONT FROM 31N69W TO 28N81W. WITHIN 31N70W TO 31N80W TO 30N80W TO 30N78W TO 30N77W TO 31N71W TO 31N70W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST DISSIPATING STATIONARY FRONT FROM 31N69W TO 27N81W. WITHIN 31N70W TO 31N80W TO 28N80W TO 29N77W TO 28N75W TO 30N71W TO 31N70W NE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. .48 HOUR FORECAST FRONT DISSIPATED. CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.

.CARIBBEAN WITHIN 13N69W TO 14N72W TO 15N79W TO 12N80W TO 10N72W TO 11N69W TO 13N69W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 30 KT. SEAS 2.5 TO 3.0 M. .24 HOUR FORECAST WITHIN 14N71W TO 14N76W TO 11N76W TO 11N73W TO 10N72W TO 11N69W TO 14N71W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS 2.5 M. .48 HOUR FORECAST WITHIN 13N66W TO 14N68W TO 14N73W TO 12N75W TO 11N69W TO 11N67W TO 13N66W...INCLUDING THE GULF OF VENEZUELA...E WINDS 20 TO 25 KT. SEAS 2.5 M.

.GULF OF AMERICA 18 HOUR FORECAST STATIONARY FRONT FROM 27N82W TO 30N88W. WITHIN 30N84W TO 31N88W TO 29N90W TO 28N89W TO 28N83W TO 30N84W WINDS NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.

24 HOUR FORECAST LITTLE CHANGE
EXCEPT FOR SEAS 2.5 M. .48 HOUR FORECAST FRONT DISSIPATED. WITHIN 29N87W TO 30N89W TO 29N92W TO 27N93W TO 26N89W TO 28N86W TO 29N87W WINDS 20 KT OR LESS. SEAS 2.5 M.

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

.FORECASTER DELGADO. NATIONAL HURRICANE CENTER.