FZNT01 KWBC 210405 HSFAT1 HIGH SEAS FORECAST FOR METAREA IV NWS OCEAN PREDICTION CENTER WASHINGTON DC 0430 UTC THU MAY 21 2026 CCODE/1:31:04:01:00/AOE/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 MAY 21. 24 HOUR FORECAST VALID 0000 UTC MAY 22. 48 HOUR FORECAST VALID 0000 UTC MAY 23. .WARNINGS. ..STORM WARNING... .LOW 53N62W 993 MB MOVING E 15 KT AND TURNING NE AFTER 24 HOURS. WITHIN 300 NM SW QUADRANT AND FROM 57N TO 60N BETWEEN 42W AND 49W WINDS 25 TO 35 KT. SEAS 2.5 TO 4 M...EXCEPT SW QUADRANT TO 2.5 M. .24 HOUR FORECAST LOW 54N49W 982 MB. WITHIN 300 NM W AND SW QUADRANTS...AND FROM 57N TO 60N BETWEEN 43W AND 53W WINDS 35 TO 50 KT. SEAS 3.5 TO 7 M...HIGHEST N OF 57N. ELSEWHERE WITHIN 420 NM SW SEMICIRCLE...AND FROM 56N TO 61N BETWEEN 40W AND 59W WINDS 25 TO 40 KT. SEAS 2.5 TO 5 M. .48 HOUR FORECAST LOW 56N41W 982 MB. WITHIN 120 NM NW OF A LINE FROM 56N44W TO 62N38W WINDS 40 TO 55 KT. SEAS 5.5 TO 8.5 M. ELSEWHERE WITHIN 240 NM NW OF A LINE FROM 52N54W TO 59N40W TO 62N35W...AND WITHIN 420 NM SE...AND 480 NM S AND SW QUADRANTS WINDS 25 TO 40 KT. SEAS 2.5 TO 7 M. ...GALE WARNING... .LOW E OF AREA NEAR 52N28W 986 MB MOVING N 10 KT. E OF A LINE FROM 52N46W TO 45N40W TO 41N35W WINDS 20 TO 30 KT. SEAS 3 TO 4.5 M. .24 HOUR FORECAST LOW E OF AREA NEAR 55N30W 992 MB. CONDITIONS MOVED E OF AREA. .SYNOPSIS AND FORECAST. .LOW 40N43W 1009 MB MOVING SE 25 KT. FROM 34N TO 43N BETWEEN 41W AND 68W WINDS TO 25 KT. SEAS TO 3 M. .24 HOUR FORECAST LOW MOVED E OF AREA. FROM 42N TO 48N E OF 57W WINDS TO 25 KT. SEAS TO 3 M. .48 HOUR FORECAST CONDITIONS MOVED E OF AREA. .48 HOUR FORECAST FROM 36N TO 40N W OF 67W WINDS 20 T0 30 KT. SEAS TO 3 M. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 42N TO 52N BETWEEN 54W AND 62W AND FROM 58N TO 65N BETWEEN 49W AND 59W. .24 HOUR FORECAST DENSE FOG FROM 52N TO 60N W OF 43W. .48 HOUR FORECAST DENSE FOG FROM 50N TO 57N BETWEEN 46W AND 57W. .FORECASTER ROWLAND. 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 0000 UTC THU MAY 21. 24 HOUR FORECAST VALID 0000 UTC FRI MAY 22. 48 HOUR FORECAST VALID 0000 UTC SAT MAY 23. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC WITHIN 21N71W TO 21N72W TO 21N73W TO 20N73W TO 20N72W TO 20N70W TO 21N71W E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST LITTLE CHANGE. .36 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .ATLC WITHIN 31N35W TO 31N44W TO 29N40W TO 28N35W TO 31N35W WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NW TO N SWELL. .18 HOUR FORECAST CONDITIONS IMPROVE. WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. .CARIBBEAN WITHIN 13N68W TO 15N72W TO 15N75W TO 13N77W TO 11N75W TO 12N69W TO 13N68W NE TO E WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M. $$ .FORECASTER CHRISTENSEN. NATIONAL HURRICANE CENTER.