High Seas Forecast
Issued by NWS
Issued by NWS
402 FZNT01 KWBC 200933 HSFAT1 HIGH SEAS FORECAST FOR METAREA IV NWS OCEAN PREDICTION CENTER WASHINGTON DC 1030 UTC FRI SEP 20 2024 CCODE/1:31:04:01:00/AOE/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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). THE NATIONAL WEATHER SERVICE IS ACCEPTING PUBLIC COMMENTS UNTIL OCTOBER 16 2024 ON A PROPOSAL TO REPLACE FEET WITH METERS WHEN DESCRIBING SEAS IN A VARIETY OF NATIONAL MARINE CENTER TEXT AND GRAPHICAL PRODUCTS FOR THE HIGH SEAS AREAS ONLY. TO LEARN MORE PLEASE VISIT (WEB ADDRESS LOWERCASE) HTTPS://OCEAN.WEATHER.GOV/PROPOSED-METERS.PHP 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 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, VOLCANIC ASH, AND ANYTHING TROPICAL (INCLUDING A DEPRESSION). LESSER CONDITIONS WILL BE INCLUDED FOR WARNING CONDITIONS AND TO PRESERVE CONTINUITY WHERE APPROPRIATE. 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 20. 24 HOUR FORECAST VALID 0600 UTC SEP 21. 48 HOUR FORECAST VALID 0600 UTC SEP 22. .WARNINGS. ...STORM WARNING... .LOW 54N44W 999 MB MOVING S 10 KT. WITHIN 420 NM N...300 NM NW AND 240 NM W QUADRANTS WINDS 30 TO 45 KT. SEAS 10 TO 19 FT. ELSEWHERE WITHIN 540 NM NE...360 NM NW...300 NM W...180 NM S AND 180 NM SE QUADRANTS WINDS 20 TO 30 KT. SEAS TO 12 FT. .24 HOUR FORECAST LOW 51N43W 1002 MB. WITHIN 120 NM W AND NW OF LINE FROM 57N44W TO 58N41W TO 62N38W WINDS 45 TO 60 KT. SEAS 15 TO 26 FT. ELSEWHERE WITHIN AN AREA BOUNDED BY 65N35W...63N35W ...60N40W...57N43W...52N48W...52N51W...56N50W...64N43W...65N35W WINDS 30 TO 45 KT. SEAS 10 TO 20 FT. ALSO WITHIN 420 NM W AND SW SEMICIRCLES WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. .48 HOUR FORECAST LOW ABSORBED AND CONDITIONS DESCRIBED WITH LOW 53N40W 997 MB. ...STORM WARNING... .LOW 46N47W 1009 MB MOVING NE 25 KT. FROM 43N TO 47N BETWEEN 42W AND 53W WINDS TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST LOW 52N41W 997 MB. WITHIN 180 NM N SEMICIRCLE AND 240 NM E QUADRANT WINDS 25 TO 40 KT. SEAS 9 TO 15 FT. .48 HOUR FORECAST LOW 53N40W 997 MB. FROM 58N TO 61N BETWEEN 42W AND 46W WINDS 40 TO 55 KT. SEAS 12 TO 24 FT. ELSEWHERE WITHIN AN AREA BOUNDED BY 62N40W...57N40W...52N47W...52N53W...57N52W ...59N46W...62N42W...62N40W WINDS 30 TO 45 KT. SEAS 10 TO 21 FT. ALSO WITHIN 540 NM N...540 NM W AND 300 NM S SEMICIRCLES WINDS 20 TO 30 KT. SEAS 9 TO 13 FT. ...GALE WARNING... .COMPLEX LOW WITH MAIN LOW 39N69W 1004 MB NEARLY STATIONARY AND SECONDARY LOW 41N65W MOVING E 20 KT. WITHIN 180 NM NW SEMICIRCLE OF MAIN LOW...ALSO WITHIN 180 NM N SEMICIRCLE AND 240 NM SE QUADRANT OF SECONDARY LOW WINDS 25 TO 35 KT. SEAS TO 12 FT. .24 HOUR FORECAST MAIN LOW 40N69W 1004 MB AND SECONDARY LOW 41N55W 1009 MB. WITHIN 180 NM N AND W SEMICIRCLES OF MAIN LOW WINDS 25 TO 40 KT. SEAS 10 TO 15 FT. ELSEWHERE FROM 40N TO 44N BETWEEN 53W AND 71W WINDS 20 TO 30 KT. SEAS TO 12 FT. .48 HOUR FORECAST MAIN LOW 39N66W 1002 MB AND SECONDARY LOW 41N48W 1005 MB. FROM 40N TO 44N BETWEEN 57W AND 69W WINDS 25 TO 35 KT. SEAS 9 TO 14 FT. ELSEWHERE WITHIN 300 NM W SEMICIRCLE OF MAIN LOW...AND FROM 38N TO 43N BETWEEN 44W AND 51W WINDS 20 TO 30 KT. SEAS TO 12 FT. .SYNOPSIS AND FORECAST. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 56N TO 59N E OF 40W. .24 HOUR FORECAST CONDITIONS IMPROVED. .48 HOUR FORECAST DENSE FOG FROM 55N TO 57N BETWEEN 40W AND 44W. .FORECASTER SHAW. 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 0600 UTC FRI SEP 20. 24 HOUR FORECAST VALID 0600 UTC SAT SEP 21. 48 HOUR FORECAST VALID 0600 UTC SUN SEP 22. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC LOW PRES NEAR 27N44W 1007 MB. WITHIN 31N43W TO 29N53W TO 28N47W TO 26N41W TO 27N41W TO 31N43W E WINDS 20 TO 30 KT. SEAS 8 TO 11 FT. ELSEWHERE...WITHIN 30N42W TO 31N56W TO 28N60W TO 26N58W TO 27N48W TO 25N42W TO 30N42W WINDS 20 KT OR LESS. SEAS 8 TO 10 FT IN NE TO E SWELL. .24 HOUR FORECAST LOW PRES NEAR 27N44W 1007 MB. WITHIN 29N37W TO 30N39W TO 30N41W TO 29N42W TO 28N40W TO 27N38W TO 29N37W E TO SE WINDS 20 TO 30 KT. SEAS 8 TO 10 FT. ELSEWHERE...WITHIN 29N37W TO 31N41W TO 29N59W TO 27N56W TO 28N48W TO 27N37W TO 29N37W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN E SWELL. .48 HOUR FORECAST LOW PRES NEAR 27N44W 1007 MB. WITHIN 31N38W TO 31N41W TO 28N41W TO 28N40W TO 28N38W TO 31N38W SE WINDS 20 TO 30 KT. SEAS 8 TO 9 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER KONARIK. NATIONAL HURRICANE CENTER.