FZNT01 KWBC 172227 HSFAT1 HIGH SEAS FORECAST FOR METAREA IV NWS OCEAN PREDICTION CENTER WASHINGTON DC 2230 UTC SUN SEP 17 2023 CCODE/2:31:04:11:00/AOE+AOW/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 1800 UTC SEP 17. 24 HOUR FORECAST VALID 1800 UTC SEP 18. 48 HOUR FORECAST VALID 1800 UTC SEP 19. .WARNINGS. ...HURRICANE WARNING... .48 HOUR FORECAST HURRICANE NIGEL NEAR 31.0N 55.0W. MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE QUADRANT...120 NM SE QUADRANT...90 NM SW QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM OF CENTER WITH SEAS TO 39 FT. ALSO SEE PART 2 BELOW. ...GALE WARNING ... .LOW E OF AREA 61N28W 972 MB MOVING SE 15 KT. WITHIN 360 NM NW QUADRANT WINDS 30 TO 45 KT. SEAS 21 TO 28 FT. ALSO N OF A LINE FROM 55N35W TO 57N41W WINDS 25 TO 35 KT. SEAS 14 TO 24 FT. ELSEWHERE WITHIN 420 NM NW AND 540 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 15 FT. .24 HOUR FORECAST LOW WELL E OF AREA NEAR 60N17W 978 MB WITH A NEW LOW FORMING E OF AREA NEAR 61N31W 993 MB. WITHIN 300 NM W AND NW QUADRANTS OF NEW LOW WINDS 30 TO 45 KT. SEAS 15 TO 26 FT. ELSEWHERE E OF A LINE FROM 66N35W TO 55N52W WINDS 20 TO 30 KT. SEAS 8 TO 15 FT. .48 HOUR FORECAST LOW E OF AREA 59N30W 989 MB. E OF A LINE FROM 65N35W TO 61N42W TO 51N38W WINDS 30 TO 45 KT. SEAS 14 TO 25 FT...HIGHEST NEAR 63N35W. ...GALE WARNING... .POST-TROPICAL CYCLONE MARGOT NEAR 35N43W 1004 MB MOVING NW 10 KT THEN TURNING MORE NE AFTER 12 HOURS. WITHIN 120 NM NE AND E SEMICIRCLES WINDS 25 TO 35 KT. SEAS 10 TO 17 FT. ELSEWHERE FROM 31N TO 40N BETWEEN 37W AND 48W WINDS 20 TO 30 KT. SEAS TO 17 FT. .24 HOUR FORECAST POST-TROPICAL CYCLONE MARGOT NEAR 38N43W 1009 MB. WITHIN 300 NM E AND SE...180 NM NE AND N AND 120 NM W AND SW QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. .48 HOUR FORECAST POST-TROPICAL CYCLONE MARGOT NEAR 39N 36W 1010 MB. WITHIN 120 NM SE SEMICIRCLE WINDS 25 TO 35 KT. SEAS 9 TO 14 FT. ELSEWHERE FROM 34N TO 41N E OF 40W WINDS TO 25 KT. SEAS TO 10 FT. ...GALE WARNING... .POST-TROPICAL CYCLONE LEE NEAR 49N61W 991 MB MOVING NE 25 KT NEXT 12 HOURS THEN TURNING E. WITHIN 300 NM S AND SE QUADRANTS WINDS 25 TO 40 KT. SEAS 9 TO 18 FT. ELSEWHERE WITHIN 360 NM W SEMICIRCLE...540 NM SE AND E AND 480 NM NE QUADRANTS WINDS 20 TO 30 KT. SEAS 8 TO 14 FT...HIGHEST S. .24 HOUR FORECAST POST-TROPICAL CYCLONE LEE NEAR 53N45W 993 MB. WITHIN 180 NM NW SEMICIRCLE AND FROM 47N TO 52N E OF 53W WINDS 25 TO 40 KT. SEAS 9 TO 18 FT. .48 HOUR FORECAST LOW E OF AREA. FROM 43N TO 51N E OF 42W AREA OF N TO NW WINDS 20 TO 30 KT. SEAS 9 TO 16 FT IN MIXED SWELL. ...GALE WARNING... .12 HOUR FORECAST FROM 31N TO 37N W OF 73W AREA OF S TO SW WINDS TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST LOW 38N73W 1005 MB. FROM 37N TO 39N BETWEEN 67W AND 70W WINDS 25 TO 35 KT. SEAS 8 TO 11 FT. ELSEWHERE WITHIN 360 NM E AND SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT. .48 HOUR FORECAST LOW INLAND NEAR 46N67W 998 MB. WITHIN 300 NM E AND 240 NM N QUADRANTS WINDS 25 TO 35 KT. SEAS TO 9 FT. ELSEWHERE FROM 40N TO 51N BETWEEN 54W AND 72W WINDS TO 25 KT. SEAS TO 11 FT...HIGHEST NEAR 41N63W. .SYNOPSIS AND FORECAST. .48 HOUR FORECAST EXCEPT WHERE NOTED WITH HURRICANE NIGEL ABOVE...FROM 31N TO 36N BETWEEN 49W AND 61W WINDS 20 TO 33 KT. SEAS TO 12 FT. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 54N BETWEEN 42W AND 56W. .24 HOUR FORECAST DENSE FOG FROM 52N TO 54N BETWEEN 35W AND 38W...N OF 63N E OF 40W...AND FROM 42N TO 45N BETWEEN 64W AND 67W. .48 HOUR FORECAST DENSE FOG FROM 43N TO 47N BETWEEN 59W AND 65W. .FORECASTER BANCROFT. OCEAN PREDICTION CENTER. NATIONAL HURRICANE CENTER MIAMI FL ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND GULF OF MEXICO SYNOPSIS VALID 1800 UTC SUN SEP 17. 24 HOUR FORECAST VALID 1800 UTC MON SEP 18. 48 HOUR FORECAST VALID 1800 UTC TUE SEP 19. .WARNINGS. ...ATLC HURRICANE WARNING... .TROPICAL STORM NIGEL NEAR 25.1N 49.5W 994 MB AT 2100 UTC SEP 17 MOVING NW OR 325 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS 55 KT GUSTS 65 KT. TROPICAL STORM FORCE WINDS WITHIN 120 NM NE QUADRANT...60 NM SE QUADRANT...40 NM SW QUADRANT...AND 90 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 120 NM S SEMICIRCLE... 180 NM NE QUADRANT AND 150 NM NW QUADRANT WITH SEAS TO 21 FT. ELSEWHERE WITHIN 27N45W TO 29N47W TO 28N52W TO 26N53W TO 22N50W TO 23N46W TO 27N45W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 30N41W TO 28N51W TO 30N61W TO 20N50W TO 20N45W TO 23N39W TO 30N41W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .12 HOUR FORECAST HURRICANE NIGEL NEAR 26.3N 50.6W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE QUADRANT...80 NM SE QUADRANT...60 NM SW QUADRANT...AND 100 NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM E SEMICIRCLE..AND 180 NM W SEMICIRCLE WITH SEAS TO 27 FT. ELSEWHERE WITHIN 27N45W TO 30N48W TO 29N54W TO 25N55W TO 23N52W TO 23N46W TO 27N45W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 31N44W TO 29N54W TO 31N57W TO 22N57W TO 20N52W TO 22N44W TO 31N44W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .24 HOUR FORECAST HURRICANE NIGEL NEAR 27.8N 52.1W. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE QUADRANT...90 NM SE QUADRANT...80 NM SW QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 NM OF CENTER...EXCEPT 240 NM NE QUADRANT WITH SEAS TO 30 FT. ELSEWHERE WITHIN 31N48W TO 31N55W TO 26N56W TO 24N52W TO 24N49W TO 28N47W TO 31N48W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 31N42W TO 31N58W TO 25N59W TO 22N58W TO 20N52W TO 23N44W TO 31N42W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE NIGEL NEAR 31.0N 55.0W. MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT. TROPICAL STORM FORCE WINDS WITHIN 130 NM NE QUADRANT...120 NM SE QUADRANT...90 NM SW QUADRANT...AND 100 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 210 OF CENTER WITH SEAS TO 39 FT. ELSEWHERE WITHIN 31N50W TO 31N59W TO 29N59W TO 27N56W TO 27N52W TO 31N50W WINDS 20 TO 33 KT. SEAS 8 TO 12 FT. REMAINDER OF AREA WITHIN 31N47W TO 31N62W TO 28N63W TO 24N61W TO 24N55W TO 26N50W TO 31N47W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED SWELL. .72 HOUR FORECAST HURRICANE NIGEL NEAR 35.7N 54.2W. MAXIMUM SUSTAINED WINDS 90 KT GUSTS 110 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST HURRICANE NIGEL NEAR 41.3N 45.9W. MAXIMUM SUSTAINED WINDS 75 KT GUSTS 90 KT. .120 HOUR FORECAST TROPICAL STORM NIGEL NEAR 47.8N 31.7W. MAXIMUM SUSTAINED WINDS 60 KT GUSTS 75 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 WITHIN 26N35W TO 25.5N35.5W TO 25N35.5W TO 24.5N35.5W TO 23N35W TO 26N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL. .24 HOUR FORECAST WITHIN 27N35W TO 26N36W TO 24N36W TO 22N35W TO 27N35W WINDS 20 KT OR LESS. SEAS 8 FT IN NE SWELL. .48 HOUR FORECAST WITHIN 27N35W TO 26N39W TO 22N42W TO 20N42W TO 19N39W TO 19N35W TO 27N35W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN NE SWELL. .CARIBBEAN WITHIN 13N69W TO 13N73W TO 12N73W TO 12N71W TO 11N72W TO 11N69W TO 13N69W...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 LEWITSKY. NATIONAL HURRICANE CENTER.