FZNT01 KWBC 230946 HSFAT1 HIGH SEAS FORECAST FOR METAREA IV NWS OCEAN PREDICTION CENTER WASHINGTON DC 1030 UTC THU APR 23 2026 CCODE/2:31:04:01:00/AOE/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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). SECURITE NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS SYNOPSIS VALID 0600 UTC APR 23. 24 HOUR FORECAST VALID 0600 UTC APR 24. 48 HOUR FORECAST VALID 0600 UTC APR 25. .WARNINGS. ...HURRICANE FORCE WIND WARNING... .LOW 39N70W 1010 MB MOVING E 20 KT AND RAPIDLY INTENSIFYING. WITHIN 240 NM S AND 360 NM SW QUADRANTS WINDS 25 TO 35 KT. SEAS TO 3 M. ELSEWHERE WITHIN 360 NM SE AND 540 NM SW QUADRANTS WINDS TO 25 KT. SEAS TO 2.5 M. .12 HOUR FORECAST LOW 39N61W 1000 MB. WITHIN 180 NM SE AND 300 NM SW QUADRANTS WINDS 35 TO 50 KT. SEAS 3 TO 6 M. .18 HOUR FORECAST LOW 41N57W 994 MB. WITHIN 180 NM SW SEMICIRCLE WINDS 50 TO 65 KT. SEAS 4 TO 7.5 M. .24 HOUR FORECAST LOW 41N56W 984 MB. WITHIN 120 NM SW SEMICIRCLE WINDS 50 TO 65 KT. SEAS 5 TO 8 M. ALSO WITHIN 150 NM SW SEMICIRCLE WINDS 35 TO 50 KT. SEAS 4 TO 7 M. ELSEWHERE WITHIN 240 NM NE...420 NM SE...540 NM SW...AND 180 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. OTHERWISE S OF 44N BETWEEN 50W AND 68W WINDS TO 25 KT. SEAS TO 3 M. .48 HOUR FORECAST LOW 45N50W 982 MB. WITHIN 240 NM S SEMICIRCLE WINDS 35 TO 45 KT. SEAS 4 TO 6.5 M. ALSO WITHIN 420 NM NE...780 NM SE AND S...360 NM SW...AND 240 NM NW QUADRANTS WINDS 25 TO 35 KT. SEAS 3 TO 5.5 M. ELSEWHERE FROM 40N TO 50N E OF 61W...AND S OF 40N E OF 66W WINDS TO 25 KT. SEAS 2.5 TO 3.5 M. ...GALE WARNING... .LOW 38N45W 1006 MB MOVING NE 10 KT. FROM 33N TO 39N BETWEEN 50W AND 46W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M. ELSEWHERE S OF 42N BETWEEN 47W AND 67W WINDS TO 25 KT. SEAS TO 3 M. .24 HOUR FORECAST LOW 40N36W 1000 MB. WITHIN 420 NM W SEMICIRCLE WINDS 20 TO 30 KT. SEAS 3 TO 4.5 M. ELSEWHERE S OF 50N E OF 50W WINDS TO 25 KT. SEAS 2.5 TO 4 M. .36 HOUR FORECAST COMBINED LOW 52N35W 999 MB. FROM 57N TO 61N BETWEEN 40W AND 49W AREA OF NE WINDS 25 TO 40 KT. SEAS 3 TO 4.5 M. .48 HOUR FORECAST LOW E OF AREA AND REMAINING CONDITIONS DESCRIBED WITH HURRICANE FORCE WIND WARNING ABOVE. ...GALE WARNING... .COMPLEX LOW E OF AREA WITH FIRST CENTER 45N25W 980 MB MOVING N 10 KT AND SECOND CENTER 49N26W 988 MB MOVING NW 25 KT THEN TURNING SW AFTER 12 HOURS. FROM 38N TO 57N E OF 40W WINDS 20 TO 30 KT. SEAS 3 TO 5.5 M. ELSEWHERE S OF 58N E OF 43W WINDS TO 25 KT. SEAS 2.5 TO 3.5 M. .24 HOUR FORECAST COMPLEX LOW E OF AREA WITH MEAN CENTER NEAR 49N30W 991 MB. WITHIN 720 NM NW AND 420 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 2.5 TO 4.5 M...HIGHEST NEAR 55N38W. .48 HOUR FORECAST COMBINED LOW 53N38W 1002 MB. WITHIN 90 NM EITHER SIDE OF A LINE FROM 60N41W TO 57N50W AREA OF NE WINDS 30 TO 40 KT. SEAS 3 TO 5 M. ALSO FROM 55N TO 60N W OF 40W...AND N OF 60N W OF 54W WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. ELSEWHERE N OF 50N W OF 35W WINDS TO 25 KT. SEAS TO 3.5 M. .SYNOPSIS AND FORECAST. .COMPLEX LOW WITH FIRST CENTER 50N54W 1002 MB MOVING NW 10 KT AND SECOND CENTER 45N46W 1005 MB MOVING SE 10 KT. WITHIN 780 NM N...AND 360 NM NE AND SW QUADRANTS OF FIRST CENTER...AND WITHIN 300 NM SW QUADRANT OF SECOND CENTER WINDS 20 TO 30 KT. SEAS 2.5 TO 3.5 M. .24 HOUR FORECAST FIRST CENTER WELL INLAND. REMAINING LOW 43N40W 1004 MB. CONDITIONS DESCRIBED WITH LOW 40N36W IN WARNINGS SECTION ABOVE. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM WITHIN 240 NM EITHER SIDE OF A LINE FROM 40N46W TO 54N54W TO 67N50W...AND N OF 41N W OF 66W. .24 HOUR FORECAST DENSE FOG FROM 38N TO 47N BETWEEN 53W AND 68W...AND FROM 50N TO 57N E OF 41W. .48 HOUR FORECAST DENSE FOG WITHIN AN AREA BOUNDED BY A LINE FROM 45N64W TO 40N50W TO 44N40W TO 50N35W TO 62N35W TO 53N64W TO 45N64W. .LIGHT FREEZING SPRAY WITHIN THE GULF OF SAINT LAWRENCE N OF 46N BETWEEN 57W AND 62W...AND NW OF A LINE FROM 59N59W TO 65N52W. .24 HOUR FORECAST LIGHT FREEZING SPRAY N OF 53N W OF 53W. .48 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY N OF 61N W OF 53W. .FORECASTER ANDERSON. 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 0600 UTC THU APR 23. 24 HOUR FORECAST VALID 0600 UTC FRI APR 24. 48 HOUR FORECAST VALID 0600 UTC SAT APR 25. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC WITHIN 31N49W TO 31N63W TO 27N64W TO 24N71W TO 20N70W TO 21N60W TO 31N49W NE WINDS 20 TO 25 KT. SEAS 2.5 TO 3.0 M. .24 HOUR FORECAST WITHIN 31N35W TO 31N42W TO 30N49W TO 27N48W TO 28N46W TO 30N44W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL. .48 HOUR FORECAST WITHIN 31N35W TO 31N42W TO 28N45W TO 24N42W TO 25N37W TO 27N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL. .ATLC WITHIN 31N35W TO 31N37W TO 29N36W TO 29N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN N SWELL. .24 HOUR FORECAST CONDITIONS MERGED. .ATLC 30 HOUR FORECAST WITHIN 31N55W TO 31N65W TO 30N63W TO 30N58W TO 31N55W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .48 HOUR FORECAST WITHIN 31N48W TO 31N61W TO 29N59W TO 28N52W TO 31N48W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW SWELL. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .FORECASTER AL. NATIONAL HURRICANE CENTER. $$