High Seas Forecast
Issued by NWS

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000 FZNT01 KWBC 221744 AAA HSFAT1 HIGH SEAS FORECAST FOR METAREA IV...UPDATED NWS OCEAN PREDICTION CENTER WASHINGTON DC 1630 UTC TUE AUG 22 2017 CCODE/1:31:04:01:00/AOW/NWS/CCODE SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS UPDATED PART 2 FOR WESTERN GULF OF MEXICO SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF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). ATLANTIC ICEBERG ANALYSIS AND OUTLOOK PRODUCTS...COURTESY OF THE U.S. COAST GUARD INTERNATIONAL ICE PATROL...CAN BE FOUND ON THE OCEAN PREDICTION CENTER WEB PAGE AT HTTP://WWW.OPC.NCEP.NOAA.GOV/ATL_TAB.SHTML(LOWERCASE). SECURITE NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W SYNOPSIS VALID 1200 UTC AUG 22 24 HOUR FORECAST VALID 1200 UTC AUG 23 48 HOUR FORECAST VALID 1200 UTC AUG 24 .WARNINGS. ...GALE WARNING... .LOW 59N49W 994 MB MOVING SE 10 KT AND WEAKENING. OVER FORECAST WATERS WITHIN 180 NM N SEMICRICLE WINDS 30 TO 40 KT. SEAS 10 TO 18 FT. ELSEWHERE WITHIN 360 NM OF LOW CENTER...EXCEPT 420 NM SW QUADRANT...AND ALSO WITHIN 180 NM E OF A FRONT EXTENDING FROM 57N42W TO 50N40W WINDS 20 TO 30 KT. SEAS 8 TO 15 FT. .24 HOUR FORECAST LOW 58N47W 1007 MB. WITHIN 300 NM NE QUADRANT WINDS 25 TO 35 KT. SEAS 9 TO 15 FT. ELSEWHERE WITHIN 300 NM NM OF CENTER EXCEPT SE QUADRANT WINDS TO 25 KT. SEAS 8 TO 12 FT. .48 HOUR FORECAST LOW DISSIPATED WITH CONDITIONS DIMINISHED. .SYNOPSIS AND FORECAST. .LOW 44N43W 1012 MB MOVING NE 10 KT. WITHIN 180 NM NE AND 300 NM SE QUADRANTS WINDS TO 25 KT. SEAS TO 8 FT. .24 HOUR FORECAST LOW 46N37W 1013 MB. WITHIN 240 NM E AND 120 NM W SEMICIRCLES WINDS TO 25 KT. SEAS TO 8 FT. .48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED E OF AREA. .24 HOUR FORECAST INLAND LOW 52N72W 989 MB. OVER FORECAST WATERS W OF A LINE FROM 50N58W TO 44N58W TO 37N70W WINDS 20 TO 30 KT EXCEPT TO 25 KT S OF 43N. SEAS TO 9 FT. .48 HOUR FORECAST INLAND LOW 53N68W 996 MB. OVER FORECAST WATERS WITHIN 360 NM W OF A LINE FROM 56N48W TO 50N45W TO 43N60W TO 40N60W WINDS 20 TO 30 KT. SEAS TO 10 FT. .24 HOUR FORECAST N OF 65N BETWEEN THE WEST COAST OF GREENLAND AND 57W S WINDS 20 TO 30 KT. SEAS TO 8 FT. .48 HOUR FORECAST CONDITIONS DIMINISHED. .DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM FROM 43N TO 56N BETWEEN 44W AND 38W. .24 HOUR FORECAST DENSE FOG WITHIN 240 NM W OF A LINE FROM 50N58W TO 40N67W AND FROM 59N TO 63N W OF 44W. .48 HOUR FORECAST DENSE FOG WITHIN 240 NM W OF A LINE FROM 57N50W TO 50N46W TO 43N60W. .HIGH 32N49W 1022 MB NEARLY STATIONARY THROUGH 48 HOURS. .HIGH 32N72W 1021 MB NEARLY STATIONARY. .24 HOUR FORECAST LITTLE CHANGE. .48 HOUR FORECAST HIGH DISSIPATED. .HIGH 37N69W 1022 MB MOVING NE 20 KT . .24 HOUR FORECAST HIGH 42N49W 1020 MB. .48 HOUR FORECAST HIGH 43N46W 1024 MB. .24 HOUR FORECAST NEW HIGH 58N57W 1016 MB. .48 HOUR FORECAST HIGH 61N42W 1016 MB. .FORECASTER SIENKIEWICZ. 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 TUE AUG 22. 24 HOUR FORECAST VALID 1200 UTC WED AUG 23. 48 HOUR FORECAST VALID 1200 UTC THU AUG 24. .WARNINGS. ...GULF OF MEXICO GALE WARNING... .24 HOUR FORECAST GULF OF MEXICO LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 21N92W 1009 MB. FROM 21N TO 23N BETWEEN 90W AND 92W E TO SE WINDS 25 TO 30 KT. SEAS 8 TO 10 FT. .48 HOUR FORECAST LOW PRES...POSSIBLE TROPICAL CYCLONE...NEAR 22.5N93W 1007 MB. FROM 21N TO 25N BETWEEN 90W AND 94W WINDS 35 TO 40 KT. SEAS 8 TO 12 FT. ELSEWHERE FROM 20N TO 26N BETWEEN 89W AND 96W WINDS 20 TO 33 KT. SEAS 8 FT. .SYNOPSIS AND FORECAST. .ATLC 09 HOUR FORECAST S OF 21N BETWEEN 71W AND 73W NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .CARIBBEAN 12 HOUR FORECAST S OF 12N BETWEEN 70W AND 74W... INCLUDING WITHIN 90 NM OF COAST OF COLOMBIA AND GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .24 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .36 HOUR FORECAST S OF 12N BETWEEN 69W AND 72W...INCLUDING 90 NM OF COAST OF COLOMBIA AND GULF OF VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT. .48 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. .REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT. CONVECTION VALID AT 1545 UTC TUE AUG 22... .SCATTERED MODERATE ISOLATED STRONG CARIBBEAN AND GULF OF MEXICO FROM 20N TO 25N BETWEEN 84W AND 92W. .TROPICAL WAVE 71W/72W S OF 17N. SCATTERED MODERATE ISOLATED STRONG FROM 14N TO 17N BETWEEN 69W AND 73W. .SCATTERED MODERATE S OF 24N BETWEEN 73W AND 76W. $$ .FORECASTER MT. NATIONAL HURRICANE CENTER.

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