High Seas Forecast
Issued by NWS

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128 FZNT01 KWBC 211554 HSFAT1 HIGH SEAS FORECAST FOR METAREA IV NWS OCEAN PREDICTION CENTER WASHINGTON DC 1630 UTC SAT OCT 21 2017 CCODE/1:31:04:01:00/AOW/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES.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). THE U.S. COAST GUARD IS CURRENTLY EXPERIENCING DEGRADATION IN IMAGE QUALITY OF ALL HFFAX PRODUCTS. TROUBLESHOOTING OF THE PROBLEM IS TAKING PLACE. PAN PAN NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W SYNOPSIS VALID 1200 UTC OCT 21 24 HOUR FORECAST VALID 1200 UTC OCT 22 48 HOUR FORECAST VALID 1200 UTC OCT 23 .WARNINGS. ...HURRICANE FORCE WIND WARNING... .LOW 47N40W 963 MB MOVING NE 25 KT. WITHIN 90 NM SW...240 NM NE...AND 180 NM SE QUADRANTS WINDS 50 TO 65 KT. SEAS 15 TO 28 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 180 NM NW...360 NM NE...540 NM SE...660 NM S...AND 480 NM SW QUADRANTS WINDS 30 TO 45 KT. SEAS 12 TO 22 FT. ALSO WITHIN 720 NM N AND 840 NM S QUADRANTS WINDS 20 TO 30 KT. SEAS 9 TO 18 FT. .06 HOUR FORECAST LOW 51N38W 952 MB. WITHIN 120 NM NE AND S SEMICIRCLES WINDS 60 TO 80 KT. SEAS 21 TO 36 FT. .24 HOUR FORECAST LOW 56N36W 948 MB. WITHIN 360 NM NW SEMICIRCLE...AND 420 NM S AND 480 NM SW QUADRANTS WINDS 40 TO 55 KT...HIGHEST NW SEMICIRCLE. SEAS 20 TO 32 FT. ELSEWHERE E OF A LINE FROM 62N42W TO 57N47W TO 49N47W WINDS 30 TO 40 KT. SEAS 15 TO 28 FT. ALSO WITHIN 540 NM N AND 1140 NM SW QUADRANTS WINDS 20 TO 30 KT. SEAS 9 TO 18 FT. .48 HOUR FORECAST LOW E OF AREA 56N31W 962 MB. FROM 55N TO 62N BETWEEN 38W AND 42W AREA OF N TO NW WINDS 40 TO 50 KT. SEAS 15 TO 25 FT. ELSEWHERE WITHIN 540 NM NW AND 1020 NM SW QUADRANTS WINDS 25 TO 40 KT. SEAS 15 TO 30 FT...HIGHEST WITHIN 720 NM SW QUADRANT. ...STORM WARNING... .LOW 55N51W 984 MB MOVING E 20 KT. WITHIN 420 NM NW QUADRANT WINDS 40 TO 50 KT. SEAS 12 TO 22 FT. ELSEWHERE OVER FORECAST WATERS WITHIN 720 NM NW...960 NM S...AND 840 NM SW QUADRANTS... AND BETWEEN 240 NM AND 480 NM NE QUADRANT WINDS 25 TO 40 KT. SEAS 9 TO 18 FT. .24 HOUR FORECAST LOW DISSIPATED. FROM 49N TO 56N BETWEEN 49W AND 55W AND FROM 60N TO 64N BETWEEN 52W AND 56W WINDS 40 TO 50 KT. SEAS 15 TO 28 FT...HIGHEST FROM 49N TO 56N BETWEEN 49W AND 55W. ELSEWHERE EXCEPT AS DESCRIBED WITH LOW 56N36W ABOVE...N OF 40N E OF 60W WINDS 25 TO 40 KT. SEAS 9 TO 18 FT. .48 HOUR FORECAST...EXCEPT AS DESCRIBED WITH LOW 56N31W ABOVE...E OF A LINE FROM 64N57W TO 50N53W AND W OF 44W WINDS 25 TO 35 KT. SEAS 11 TO 22 FT. .SYNOPSIS AND FORECAST. .48 HOUR FORECAST OVER FORECAST WATERS S OF 34N BETWEEN 50W AND 66W AREA OF NE TO E WINDS TO 25 KT. SEAS TO 8 FT. .48 HOUR FORECAST...EXCEPT AS DESCRIBED IN WARNINGS SECTION ABOVE...FROM 35N TO 40N E OF 55W WINDS TO 25 KT. SEAS 8 TO 15 FT. .LIGHT TO MODERATE FREEZING SPRAY W OF A LINE FROM 60N64W TO 67N60W. .24 HOUR FORECAST LIGHT TO MODERATE FREEZING SPRAY W OF A LINE FROM 61N63W TO 67N60W. .48 HOUR FORECAST CONDITIONS DIMINISHED. .48 HOUR FORECAST HIGH 41N62W 1033 MB. .FORECASTER FIGURSKEY. 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 1200 UTC SAT OCT 21. 24 HOUR FORECAST VALID 1200 UTC SUN OCT 22. 48 HOUR FORECAST VALID 1200 UTC MON OCT 23. .WARNINGS. .NONE. .SYNOPSIS AND FORECAST. .ATLC FROM 25N TO 27N W OF 77W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .12 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .ATLC TROPICAL WAVE FROM 21N46W TO 16N47W TO 10N48W. WITHIN AREA BOUNDED BY 20N38W TO 18N35W TO 12N39W TO 16N45W NE TO E WINDS 20 TO 25 KT. SEAS 10 TO 12 FT. ELSEWHERE E OF LINE FROM 22N45W TO 15N49W TO 07N43W WINDS 20 KT OR LESS. SEAS 8 TO 11 FT IN MIXED NE AND SE SWELL. .24 HOUR FORECAST TROPICAL WAVE ALONG 54W/55W S OF 21N. FROM 08N TO 16N BETWEEN 39W AND 49W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .48 HOUR FORECAST TROPICAL WAVE ALONG 58W/59W S OF 20N. FROM 09N TO 13N BETWEEN 44W AND 53W WINDS 20 KT OR LESS. SEAS 8 TO 9 FT IN MIXED SWELL. .ATLC 06 HOUR FORECAST S OF 21N BETWEEN 71W AND 73W E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .12 HOUR FORECAST S OF 21N BETWEEN 71W AND 75W...INCLUDING ENTRANCE TO WINDWARD PASSAGE...E WINDS 20 TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .36 HOUR FORECAST S OF 21N BETWEEN 71W AND 75W...INCLUDING ENTRANCE TO WINDWARD PASSAGE...E WINDS 20 TO 25 KT. SEAS TO 8 FT. .48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN N OF LINE FROM 11N65W TO 11N76W TO 18N80W AND S OF LINE FROM 14N65W TO 18N71W TO 18N80W E WINDS 20 TO 30 KT. SEAS 8 TO 12 FT. .24 HOUR FORECAST FROM 11N TO 18N BETWEEN 66W AND 82W E WINDS 20 TO 25 KT. SEAS 8 TO 12 FT. .48 HOUR FORECAST FROM 11N TO 18N BETWEEN 69W AND 82W E WINDS 20 TO 25 KT. SEAS 8 TO 11 FT. .CARIBBEAN 36 HOUR FORECAST S OF 17.5N W OF 86W...INCLUDING THE GULF OF HONDURAS...E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .GULF OF MEXICO 36 HOUR FORECAST COLD FRONT FROM 30N93W TO 26N97W. W OF FRONT N WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST COLD FRONT FROM 30N87W TO 24N90W TO 18N94W. S OF 24N W OF 94W N TO NW WINDS 20 TO 30 KT. SEAS TO 9 FT...HIGHEST NEAR 19.5N95.5W. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. $$ .FORECASTER MCELROY. NATIONAL HURRICANE CENTER.

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