FZNT01 KWBC 180958 HSFAT1 HIGH SEAS FORECAST FOR METAREA IV NWS OCEAN PREDICTION CENTER WASHINGTON DC 1030 UTC MON SEP 18 2023 CCODE/2:31:04:11:00/AOE+AOW/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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). FROM OCTOBER 15 TO APRIL 1, DUE TO THE CLIMATOLOGY OF THE NORTH ATLANTIC AND THE FREQUENCY AND VOLUME OF WEATHER HAZARDS, ALONG WITH CUSTOMER FEEDBACK, HIGH SEAS FORECASTS N OF 31N WILL BE LIMITED TO WINDS OF 25 TO 35 KNOTS AND HIGHER, AND SEAS OF 12 FEET OR GREATER, ALONG WITH FREEZING SPRAY, DENSE FOG, AND VOLCANIC ASH. LESSER CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO PRESERVE CONTINUITY WHERE APPROPRIATE. SEND FEEDBACK VIA HTTPS://OCEAN.WEATHER.GOV/CONTACT/INDEX.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 SEP 18. 24 HOUR FORECAST VALID 0600 UTC SEP 19. 48 HOUR FORECAST VALID 0600 UTC SEP 20. .WARNINGS. ...HURRICANE WARNING... .24 HOUR FORECAST...EXCEPT WHERE NOTED BELOW IN PART 2 IN ASSOCIATION WITH HURRICANE NIGEL FROM 31N TO 35N BETWEEN 47W AND 58W WINDS 20 TO 33 KT. SEAS TO 12 FT. .48 HOUR FORECAST HURRICANE NIGEL NEAR 33.1N 55.0W. MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 140 NM NE QUADRANT...150 NM SE QUADRANT...100 NM SW QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM OF CENTER WITH SEAS TO 36 FT. ELSEWHERE FROM 31N TO 37N BETWEEN 49W AND 60W WINDS 20 TO 33 KT. SEAS TO 12 FT. ...GALE WARNING ... .N OF 60N AND E OF THE GREENLAND COAST WINDS 25 TO 40 KT. SEAS 12 TO 24 FT. ELSEWHERE N OF 54N E OF 46W WINDS TO 25 KT. SEAS 9 TO 16 FT. .24 HOUR FORECAST LOW E OF AREA NEAR 62N29W 988 MB. WITHIN 360 NM W AND NW QUADRANTS WINDS 30 TO 45 KT. SEAS 15 TO 27 FT. ELSEWHERE N OF 53N E OF 44W WINDS 25 TO 35 KT. SEAS 10 TO 18 FT. .48 HOUR FORECAST LOW E OF AREA NEAR 54N25W 988 MB. WITHIN 600 NM W AND SW QUADRANTS AND 720 NM N QUADRANTS WINDS 25 TO 40 KT. SEAS 12 TO 24 FT. ...GALE WARNING... .LOW 51N53W 992 MB MOVING E 30 KT. WITHIN 360 NM S AND SE AND 360 NM N QUADRANTS WINDS 25 TO 35 KT. SEAS 8 TO 13 FT. ELSEWHERE FROM 45N TO 58N BETWEEN 35W AND 60W WINDS 20 TO 30 KT. SEAS TO 12 FT. .24 HOUR FORECAST LOW E OF AREA NEAR 53N25W 984 MB. FROM 42N TO 54N E OF 45W WINDS 25 TO 35 KT. SEAS 10 TO 18 FT. .48 HOUR FORECAST CONDITIONS E OF AREA. ...GALE WARNING... .FROM 31N TO 39N BETWEEN 70W AND 78W WINDS 25 TO 35 KT. SEAS TO 9 FT. .24 HOUR FORECAST LOW 42N69W 1004 MB. WITHIN 240 NM E AND 480 NM SE QUADRANTS WINDS 25 TO 35 KT. SEAS 9 TO 15 FT. ELSEWHERE WITHIN 360 NM SW QUADRANT WINDS 20 TO 30 KT. SEAS TO 11 FT. .48 HOUR FORECAST LOW 48N63W 1000 MB. WITHIN 180 NM N...480 NM E...AND 240 NM S QUADRANTS WINDS 25 TO 35 KT. SEAS TO 11 FT. .SYNOPSIS AND FORECAST. .LOW 36N44W 1008 MB MOVING NE 10 KT. WITHIN 300 NM OF CENTER...EXCEPT 480 NM NE QUADRANT WINDS 20 TO 30 KT. SEAS 8 TO 14 FT .24 HOUR FORECAST LOW 38N41W 1012 MB. WITHIN 300 NM SE SEMICIRCLE AND 180 NM NW SEMICIRCLE WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. .48 HOUR FORECAST LOW E OF AREA NEAR 38N34W 1014 MB. WITHIN 240 NM W SEMICIRCLE WINDS 20 TO 30 KT. SEAS TO 11 FT. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 44N TO 54N BETWEEN 35W AND 56W. .24 HOUR FORECAST DENSE FOG N OF 60N E OF GREENLAND. .48 HOUR FORECAST DENSE FOG FROM 43N TO 47N BETWEEN 54W AND 58W. .FORECASTER ACHORN. OCEAN PREDICTION CENTER. NWS NATIONAL HURRICANE CENTER MIAMI FL ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF MEXICO SYNOPSIS VALID 0600 UTC MON SEP 18. 24 HOUR FORECAST VALID 0600 UTC TUE SEP 19. 48 HOUR FORECAST VALID 0600 UTC WED SEP 20. .WARNINGS. ...ATLC HURRICANE WARNING... .TROPICAL STORM NIGEL NEAR 26.5N 50.7W 984 MB AT 0900 UTC SEP 18 MOVING NW OR 325 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 140 NM NE QUADRANT...90 NM SE QUADRANT...50 NM SW QUADRANT...AND 120 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM S SEMICIRCLE...210 NM NE QUADRANT AND 150 NM NW QUADRANT WITH SEAS TO 26 FT. ELSEWHERE WITHIN 240 NM N SEMICIRCLE....270 NM SE QUADRANT AND 180 NM SW QUADRANT WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. .24 HOUR FORECAST HURRICANE NIGEL NEAR 29.1N 53.3W. MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM NW AND SE QUADRANTS...140 NM NE QUADRANT AND 90 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM OF CENTER OF NIGEL...EXCEPT 240 NM NE QUADRANT WITH SEAS TO 38 FT. ELSEWHERE WITHIN 300 NM NE QUADRANT...270 NM SE QUADRANT...180 NM SW QUADRANT AND 240 NM NW QUADRANT WINDS 20 TO 33 KT. SEAS 10 TO 16 FT. REMAINDER OF AREA FROM 20N TO 31N BETWEEN 44W AND 61W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE NIGEL N OF AREA NEAR 33.1N 55.0W. MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM W SEMICIRCLE...140 NM NE QUADRANT AND 150 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 240 NM OF CENTER WITH SEAS TO 36 FT. ELSEWHERE WITHIN 300 NM OF CENTER OF NIGEL WINDS 20 TO 33 KT. SEAS 10 TO 18 FT. REMAINDER OF AREA FROM 25N TO 31N BETWEEN 47W AND 66W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .72 HOUR FORECAST HURRICANE NIGEL NEAR 38.5N 50.8W. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST HURRICANE NIGEL NEAR 44.5N 37.3W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. .120 HOUR FORECAST POST-TROPICAL EXTRATROPICAL NIGEL NEAR 51.5N 21.5W. MAXIMUM SUSTAINED WINDS 50 KT GUSTS 60 KT. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. .SYNOPSIS AND FORECAST. .ATLC 18 HOUR FORECAST FROM 20N TO 27N BETWEEN 35W AND 39W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST TROPICAL WAVE ALONG 40W S OF 22N. FROM 20N TO 25N E OF 43W WINDS 20 KT OR LESS. SEAS TO 8 FT IN DECAYING NE SWELL. .CARIBBEAN FROM 11N TO 13N BETWEEN 69W AND 73W...INCLUDING THE GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST LITTLE CHANGE. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER. $$