High Seas Forecast
Issued by NWS
Issued by NWS
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392 FZNT01 KWBC 152308 CCC HSFAT1 HIGH SEAS FORECAST FOR METAREA IV NWS OCEAN PREDICTION CENTER WASHINGTON DC 2230 UTC SAT NOV 15 2025 CCODE/2:31:04:01:00/AOE/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC NOV 15. 24 HOUR FORECAST VALID 1800 UTC NOV 16. 48 HOUR FORECAST VALID 1800 UTC NOV 17. .WARNINGS. ...STORM WARNING... .LOW 41N55W 996 MB MOVING NE 30 KT THEN TURNING N BY 24 HOURS AND THEN NW AFTER 36 HOURS. FROM 34N TO 40N BETWEEN 53W AND 65W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. .24 HOUR FORECAST LOW 47N44W 992 MB. FROM 42N TO 55N BETWEEN 35W AND 46W WINDS 25 TO 40 KT. SEAS 3 TO 5 M. ELSEWHERE FROM 36N TO 56N E OF 50W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. .48 HOUR FORECAST LOW 56N56W 993 MB. FROM 58N TO 61N BETWEEN 53W AND 44W WINDS 40 TO 55 KT. SEAS 4.5 TO 8 M. ELSEWHERE WITHIN 360 NM N AND 540 NM NE QUADRANTS WINDS 25 TO 40 KT. SEAS 3 TO 6 M. ELSEWHERE N OF A LINE FROM 52N35W TO 61N60W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. ...STORM WARNING... .12 HOUR FORECAST WITHIN 90 NM EITHER SIDE OF A LINE FROM 34N77W TO 35N73W TO 39N72W AREA OF S TO SW WINDS 25 TO 35 KT. SEAS TO 3.5 M. .24 HOUR FORECAST LOW 44N67W 978 MB. BETWEEN 300 NM AND 600 NM S QUADRANT WINDS 35 TO 50 KT. SEAS 4.5 TO 6 M. ALSO BETWEEN 180 NM AND 300 NM E QUADRANT AND BETWEEN 77W AND A LINE FROM 41N56W TO 32N63W WINDS 25 TO 40 KT. SEAS 3 TO 4.5 M...EXCEPT N OF 42N SEAS TO 3 M. .30 HOUR FORECAST LOW JUST INLAND 46N65W 977 MB. FRONT TO EXTEND FROM LOW TO 43N61W TO 36N68W. WITHIN 150 NM NE...E AND SE OF FRONT WINDS 35 TO 50 KT. SEAS 3.5 TO 7 M. .48 HOUR FORECAST LOW 50N63W 975 MB. FRONT TO EXTEND FROM 52N60W TO 47N51W TO 33N62W. FROM 36N TO 46N BETWEEN 57W AND 74W AND WITHIN 180 NM NE...E...AND SE OF FRONT N TO 34N WINDS 30 TO 45 KT. SEAS 3.5 TO 7 M...HIGHEST NEAR 40N60W. ALSO FROM 35N TO 47N BETWEEN 54W AND 75W...WITHIN 420 NM NE QUADRANT AND WITHIN 240 NM NE AND E OF FRONT WINDS 25 TO 40 KT. SEAS 3 TO 5.5 M. ELSEWHERE S OF 56N W OF 40W WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M. ...GALE WARNING... .INLAND LOW 51N62W 986 MB MOVING W 15 KT. WITHIN 300 NM N AND NE OF A FRONT FROM 55N62W TO 50N49W WINDS 25 TO 35 KT. SEAS 3 TO 5 M. ELSEWHERE FROM 45N TO 60N W OF 50W AND WITHIN 420 NM N OF FRONT WINDS 20 TO 30 KT. SEAS 2.5 TO 4 M...EXCEPT SEAS TO 2.5 M WITHIN THE GULF OF SAINT LAWRENCE. .24 HOUR FORECAST LOW INLAND 51N72W 987 MB. CONDITIONS DIMINISHED. ...GALE WARNING... .LOW 49N45W 999 MB MOVING NW 25 KT. WITHIN 240 NM NE SEMICIRCLE AND WITHIN 180 NM NE OF A FRONT FROM LOW TO 42N37W WINDS 25 TO 35 KT. SEAS 3 TO 4.5 M. ELSEWHERE FROM 38N TO 55N E OF 45W WINDS TO 25 KT. SEAS TO 4 M. .24 HOUR FORECAST LOW 57N57W 996 MB. FRONT TO EXTEND FROM LOW TO 58N50W TO 55N43W. WITHIN 120 NM N OF FRONT W OF 44W WINDS 35 TO 45 KT. SEAS 4 TO 5.5 M. ALSO WITHIN 300 NM N SEMICIRCLE AND WITHIN 180 NM NE OF FRONT WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. .48 HOUR FORECAST LOW DISSIPATED INLAND. CONDITIONS MERGED WITH LOW 56N56W DESCRIBED IN FIRST STORM WARNING ABOVE. ...GALE WARNING... .24 HOUR FORECAST FROM 64N TO 67N W OF 60W AREA OF N TO NE WINDS 25 TO 40 KT. SEAS TO 3.5 M. .48 HOUR FORECAST FROM 64N TO 66N W OF 60W AREA OF NE WINDS 25 TO 40 KT. SEAS 2.5 TO 4 M. .SYNOPSIS AND FORECAST...CORRECTED. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 60 NM EITHER SIDE OF A LINE FROM 57N62W TO 62N63W TO 65N59W...AND FROM 46N TO 50N BETWEEN 43W AND 47W. .24 HOUR FORECAST DENSE FOG FROM 46N TO 55N BETWEEN 42W AND 46W. .48 HOUR FORECAST DENSE FOG IN THE GULF OF SAINT LAWRENCE W OF 65W...AND WITHIN 60 NM EITHER SIDE OF A LINE FROM 44N50W TO 48N49W TO 51N55W...FROM 54N TO 58N BETWEEN 50W AND 56W...AND N OF 62N W OF 55W. .24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 64N W OF 60W AND WITHIN 60 NM OF THE W GREENLAND COAST N OF 66N. .48 HOUR FORECAST LIGHT FREEZING SPRAY N OF 65N W OF 58W AND N OF 64N E OF GREENLAND. .FORECASTER BANCROFT. OCEAN PREDICTION CENTER. NATIONAL HURRICANE CENTER MIAMI FL ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF AMERICA SYNOPSIS VALID 1800 UTC SAT NOV 15. 24 HOUR FORECAST VALID 1800 UTC SUN NOV 16. 48 HOUR FORECAST VALID 1800 UTC MON NOV 17. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC N OF 25N E OF 51W AND N OF 28N BETWEEN 51W AND 67W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW SWELL. .24 HOUR FORECAST N OF A LINE FROM 31N35W TO 26N48W TO 28N60W TO 31N62W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .48 HOUR FORECAST N OF A LINE FROM 31N38W TO 28N42W TO 28N45W TO 31N47W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .ATLC FROM 16N TO 23N E OF 43W WINDS 20 KT OR LESS. SEAS 2.5 M IN N W SWELL. .24 HOUR FORECAST FROM 13N TO 16N E OF 39W WINDS 20 KT OR LESS. SEAS 2.5 M IN N SWELL. .48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .ATLC 18 HOUR FORECAST N OF 30N BETWEEN 68W AND 80W SW TO W WINDS 20 TO 25 KT. SEAS BUILDING TO 2.5 M. .24 HOUR FORECAST N OF 30N BETWEEN 62W AND 80W SW TO W WINDS 20 TO 30 KT. SEAS 2.5 TO 3 M. .36 HOUR FORECAST N OF 29N BETWEEN 58W AND 77W SW TO W WINDS 20 TO 30 KT. SEAS 2.5 TO 3 M. .42 HOUR FORECAST COLD FRONT FROM 31N72W TO 30N80W. N OF 29N AND SE OF FRONT BETWEEN 58W AND 74W SW TO W WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M IN NW SWELL. N OF FRONT AND E OF 74W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW SWELL. .48 HOUR FORECAST COLD FRONT FROM 31N68W TO 29N80W. N OF 30N AND SE OF FRONT BETWEEN 60W AND 68W SW TO W WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M IN NW SWELL. ELSEWHERE N OF 29N AND SE OF FRONT BETWEEN 56W AND 72W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW SWELL. N OF FRONT AND E OF 72W WINDS 20 KT OR LESS. SEAS 2.5 TO 3 M IN NW SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. $$ .FORECASTER GR. NATIONAL HURRICANE CENTER.