FZNT01 KWBC 171010 HSFAT1 HIGH SEAS FORECAST FOR METAREA IV NWS OCEAN PREDICTION CENTER WASHINGTON DC 1030 UTC SUN SEP 17 2023 CCODE/2:31:04:11:00/AOE+AOW/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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 0600 UTC SEP 17. 24 HOUR FORECAST VALID 0600 UTC SEP 18. 48 HOUR FORECAST VALID 0600 UTC SEP 19. .WARNINGS. ...TROPICAL STORM WARNING ... .TROPICAL STORM MARGOT NEAR 34.0N 41.4W 1001 MB AT 0900 UTC SEP 17 MOVING W OR 280 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 150 NM NE QUADRANT...90 NM SE QUADRANT...AND 120 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 300 NM NE QUADRANT...180 NM SE QUADRANT...270 NM SW QUADRANT...AND 330 NM NW QUADRANT WITH SEAS TO 18 FT. ELSEWHERE FROM 31N TO 41N BETWEEN 35W AND 47W WINDS 20 TO 33 KT. SEAS TO 12 FT. .24 HOUR FORECAST POST-TROPICAL CYCLONE MARGOT NEAR 35.8N 43.4W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. FROM 32N TO 41N BETWEEN 37W AND 48W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT. .48 HOUR FORECAST POST-TROPICAL CYCLONE MARGOT NEAR 38.2N 39.2W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 60 NM SE QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM E SEMICIRCLE WITH SEAS TO 13 FT. ELSEWHERE FROM 34N TO 42N BETWEEN 35W AND 45W WINDS 20 TO 33 KT. SEAS TO 12 FT. .72 HOUR FORECAST POST-TROPICAL CYCLONE MARGOT NEAR 37.0N 33.5W. MAXIMUM SUSTAINED WINDS 30 KT GUSTS 40 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY ...ERRORS MAY BE LARGE. .96 HOUR FORECAST POST-TROPICAL CYCLONE MARGOT NEAR 36.5N 31.0W. MAXIMUM SUSTAINED WINDS 25 KT GUSTS 35 KT. .120 HOUR FORECAST...DISSIPATED. FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE AND INTENSITY. ...STORM WARNING ... .LOW E OF AREA 63N31W 966 MB MOVING SE 10 KT. WITHIN 240 NM NW QUADRANT WINDS 45 TO 60 KT. SEAS 22 TO 35 FT. ELSEWHERE WITHIN 480 NM SW QUADRANT WINDS 30 TO 45 KT. SEAS 12 TO 26 FT. .24 HOUR FORECAST LOW WELL E OF AREA NEAR 60N21W 974 MB. E OF A LINE FROM 60N41W TO 65N35W WINDS 30 TO 45 KT. SEAS 12 TO 24 FT. .48 HOUR FORECAST NEW LOW TO FORM NEAR 62N27W 986 MB. N OF 54N E OF 41W WINDS 30 TO 45 KT. SEAS 13 TO 26 FT. ...GALE WARNING ... .POST-TROPICAL CYCLONE LEE NEAR 46.5N 63.7W 987 MB AT 0900 UTC SEP 17 MOVING NE OR 045 DEG AT 19 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 KT. TROPICAL STORM FORCE WINDS WITHIN 210 NM NE...250 NM SE...AND 150 NM SW QUADRANTS. SEAS 12 FT OR GREATER WITHIN 480 NM NE QUADRANT...720 NM SE QUADRANT...AND 540 NM SW QUADRANT WITH SEAS TO 21 FT. ELSEWHERE FROM 38N TO 52N BETWEEN 50W AND 71W WINDS 20 TO 33 KT. SEAS TO 12 FT. .24 HOUR FORECAST POST-TROPICAL CYCLONE LEE NEAR 51.2N 52.6W. MAXIMUM SUSTAINED WINDS 35 KT GUSTS 45 KT. TROPICAL STORM FORCE WINDS WITHIN 100 NM NE QUADRANT...150 NM SE QUADRANT...60 NM SW QUADRANT...AND 60 NM NW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM N AND 360 NM S AND SE QUADRANTS WITH SEAS TO 14 FT. ELSEWHERE FROM 45N TO 57N BETWEEN 35W AND 58W WINDS 20 TO 33 KT. SEAS TO 12 FT. .48 HOUR FORECAST...DISSIPATED. ...GALE WARNING... .24 HOUR FORECAST FROM 31N TO 38N W OF 70W WINDS TO 25 KT. SEAS LESS THAN 8 FT. .42 HOUR FORECAST LOW 38N70W 1002 MB. WITHIN 240 NM E AND SE QUADRANTS WINDS 25 TO 35 KT. SEAS TO 11 FT. .48 HOUR FORECAST LOW 41N68W 1000 MB. FROM 35N TO 43N BETWEEN 61W AND 72W WINDS 20 TO 30 KT. SEAS TO 12 FT. ...GALE WARNING... .48 HOUR FORECAST NEW LOW E OF AREA 54N23W 981 MB. FROM 44N TO 54N E OF 45W WINDS 25 TO 35 KT. SEAS 9 TO 16 FT. .SYNOPSIS AND FORECAST. .48 HOUR FORECAST FROM 31N TO 34N BETWEEN 49W AND 60W WINDS TO 25 KT. SEAS TO 12 FT. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 45N TO 55N BETWEEN 42W AND 60W. .24 HOUR FORECAST DENSE FOG FROM 49N TO 54N BETWEEN 35W AND 56W. .48 HOUR FORECAST DENSE FOG N OF 60N E OF GREENLAND. .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 SUN SEP 17. 24 HOUR FORECAST VALID 0600 UTC MON SEP 18. 48 HOUR FORECAST VALID 0600 UTC TUE SEP 19. .WARNINGS. ...HURRICANE WARNING... .TROPICAL STORM NIGEL NEAR 23.0N 48.6W 1001 MB AT 0900 UTC SEP 17 MOVING NNW OR 330 DEG AT 12 KT. MAXIMUM SUSTAINED WINDS 45 KT GUSTS 55 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 150 NM NE QUADRANT...90 NM SE QUADRANT...75 NM SW QUADRANT...AND 105 NM NW QUADRANT WITH SEAS TO 15 FT. WITHIN 25N44W TO 27N47W TO 27N50W TO 24N52W TO 21N46W TO 23N44W TO 25N44W E TO SE WINDS 20 TO 33 KT. SEAS 9 TO 11 FT. WITHIN 24N41W TO 27N43W TO 28N51W TO 22N53W TO 18N50W TO 20N42W TO 24N41W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .24 HOUR FORECAST HURRICANE NIGEL NEAR 26.0N 51.0W. MAXIMUM SUSTAINED WINDS 65 KT GUSTS 80 KT. TROPICAL STORM FORCE WINDS WITHIN 90 NM NW AND SE QUADRANTS...110 NM NE QUADRANT AND 80 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 150 NM N SEMICIRCLE AND 120 NM S SEMICIRCLE WITH SEAS TO 25 FT. WITHIN 28N46W TO 30N51W TO 28N54W TO 24N53W TO 23N47W TO 25N45W TO 28N46W E TO SE WINDS 20 TO 33 KT. SEAS 12 TO 14 FT. WITHIN 31N44W TO 29N54W TO 31N58W TO 23N57W TO 20N51W TO 22N43W TO 31N44W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN MIXED SWELL. .48 HOUR FORECAST HURRICANE NIGEL NEAR 28.8N 54.0W. MAXIMUM SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS WITHIN 110 NM NW AND SE QUADRANTS...120 NM NE QUADRANT AND 90 NM SW QUADRANT. SEAS 12 FT OR GREATER WITHIN 180 NM N SEMICIRCLE AND 210 NM S SEMICIRCLE WITH SEAS TO 36 FT. WITHIN 31N49W TO 31N58W TO 28N57W TO 26N54W TO 26N52W TO 28N49W TO 31N49W S WINDS 20 TO 33 KT. SEAS 14 TO 18 FT. WITHIN 31N48W TO 26N54W TO 31N58W TO 26N62W TO 21N53W TO 24N46W TO 31N48W WINDS 20 KT OR LESS. SEAS 8 TO 12 FT IN MIXED SWELL. .72 HOUR FORECAST HURRICANE NIGEL NEAR 32.7N 55.8W. MAXIMUM SUSTAINED WINDS 100 KT GUSTS 120 KT. EXTENDED OUTLOOK...USE FOR GUIDANCE ONLY...ERRORS MAY BE LARGE. .96 HOUR FORECAST HURRICANE NIGEL NEAR 38.0N 52.0W. MAXIMUM SUSTAINED WINDS 85 KT GUSTS 105 KT. .120 HOUR FORECAST HURRICANE NIGEL NEAR 44.5N 40.0W. MAXIMUM SUSTAINED WINDS 70 KT GUSTS 85 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 WITHIN 31N52W TO 30N76W TO 25N75W TO 24N64W TO 27N63W TO 28N56W TO 31N52W...INCLUDING ATLANTIC EXPOSURES...WINDS 20 KT OR LESS. SEAS 8 FT IN N SWELL. WITHIN 31N36W TO 31N50W TO 28N49W TO 27N41W TO 27N38W TO 31N36W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN N TO NE SWELL. .12 HOUR FORECAST CONDITIONS MERGE WITH WARNING FEATURE. .CARIBBEAN WITHIN 13N70W TO 13N71W TO 12N73W TO 11N72W TO 11N70W TO 11N69W TO 13N70W...INCLUDING THE GULF OF VENEZUELA...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 RAMOS. NATIONAL HURRICANE CENTER. $$