000 FZNT31 KNHC 212100 OFFN20 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 500 PM EDT SAT APR 21 2012 MARINE WEATHER HF VOICE BROADCAST FOR THE TROPICAL N ATLANTIC FROM 07N TO 22N BETWEEN 55W AND 64W...THE SW N ATLC S OF 31N W OF 65W INCLUDING BAHAMAS...AND THE CARIBBEAN SEA. 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. SYNOPSIS FOR CARIBBEAN SEA AND TROPICAL N ATLC FROM 07N TO 19N BETWEEN 55W AND 64W .SYNOPSIS...SOUTHERLY FLOW IS GRADUALLY INCREASING OVER THE NW CARIBBEAN AHEAD OF A COLD FRONT MOVING INTO THE YUCATAN CHANNEL LATE THIS AFTERNOON. THE FRONT WILL REACH FROM CENTRAL CUBA TO THE GULF OF HONDURAS SUN...THEN WEAKEN AND SLOW AS IT REACHES FROM FROM E CUBA TO NE HONDURAS EARLY MON...THEN BECOMES DIFFUSE FROM THE WINDWARD PASSAGE TO NICARAGUA MON NIGHT. FRESH N FLOW WILL DOMINATE THE WESTERN CARIBBEAN TUE INTO WED WITH WINDS BECOMING EASTERLY OVER THE EXTREME NW WATERS WED NIGHT INTO THU. EASTERLY TRADES WILL CONTINUE E OF THE FRONT THROUGH THE PERIOD. NW CARIBBEAN W OF 85W .TONIGHT...S WINDS LESS THAN 10 KT...BECOMING W TO NW 10 TO 20 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. .SUN...W TO NW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .SUN NIGHT THROUGH MON NIGHT...N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .TUE THROUGH THU...NE TO E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. CARIBBEAN N OF 15N BETWEEN 72W AND 85W .TONIGHT...SE TO S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .SUN...S TO SW WINDS 10 TO 15 KT...BECOMING SW 10 TO 20 KT IN THE AFTERNOON. SEAS 4 TO 6 FT. .SUN NIGHT THROUGH MON NIGHT...N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .TUE THROUGH THU...NE TO E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. CARIBBEAN FROM 11N TO 15N W OF 70W .TONIGHT...E TO SE WINDS LESS THAN 10 KT...EXCEPT E 10 TO 15 KT WITHIN 90 NM OF COAST OF COLOMBIA. SEAS 3 TO 5 FT. .SUN...E TO SE WINDS LESS THAN 10 KT IN THE MORNING...BECOMING VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT. .SUN NIGHT THROUGH MON NIGHT...N WINDS 10 TO 20 KT...EXCEPT N TO NE LESS THAN 10 KT WITHIN 90 NM OF COAST OF COLOMBIA. SEAS 3 TO 5 FT. .TUE THROUGH THU...NE TO E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. SW CARIBBEAN S OF 11N .TONIGHT...VARIABLE WINDS 10 KT OR LESS. SEAS 2 TO 4 FT. .SUN...VARIABLE WINDS 10 KT OR LESS. SEAS 2 TO 4 FT. .SUN NIGHT THROUGH MON NIGHT...N WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. .TUE THROUGH THU...N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. CARIBBEAN BETWEEN 64W AND 72W .TONIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .SUN...E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .SUN NIGHT THROUGH MON NIGHT...E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .TUE THROUGH THU...NE TO E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO 19N W OF 55W .TONIGHT...E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT. .SUN...E TO SE WINDS 10 TO 15 KT...DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON. SEAS 3 TO 5 FT. .SUN NIGHT THROUGH MON NIGHT...E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .TUE THROUGH THU...NE TO E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO 15N W OF 55W .TONIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .SUN...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .SUN NIGHT THROUGH MON NIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .TUE THROUGH THU...NE TO E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...INCREASING SOUTHERLY WINDS OVER THE WATERS W OF 75W WILL CONTINUE TONIGHT AHEAD OF A STRENGTHENING LOW PRES SYSTEM AND ASSOCIATED COLD FRONT OVER THE GULF OF MEXICO. THE COLD FRONT WILL MOVE OFF THE SE UNITED STATES COAST SUN MORNING AS THE LOW TRACKS NE ALONG THE COAST AND CONTINUES TO STRENGTHEN. THE FRONT WILL REACH FROM 31N74W TO CENTRAL CUBA AROUND SUNRISE MON...THEN WEAKEN AS IT REACHES FROM 31N67W TO HISPANIOLA AROUND SUNRISE TUE AND FROM 23N65W TO THE MONA PASSAGE AROUND WED. REMNANTS OF THE FRONT WILL DRIFT W WED NIGHT INTO THU OVER THE FAR SE WATERS AS HIGH PRES BUILDS E TO W ALONG 28N. ATLC WATERS FROM 27N TO 31N W OF 77W .TONIGHT...SE TO S WINDS 15 TO 20 KT...BECOMING S 15 TO 25 KT AFTER MIDNIGHT. SEAS 6 TO 9 FT. .SUN...SW WINDS 15 TO 25 KT. SEAS 8 TO 11 FT. .SUN NIGHT THROUGH MON NIGHT...NW WINDS 15 TO 25 KT. SEAS 7 TO 10 FT. .TUE THROUGH THU...S TO SW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W .TONIGHT...SE TO S WINDS 10 TO 15 KT...BECOMING 10 TO 20 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. .SUN...SE TO S WINDS 15 TO 25 KT. SEAS 6 TO 9 FT. .SUN NIGHT THROUGH MON NIGHT...W WINDS 15 TO 25 KT. SEAS 8 TO 11 FT. .TUE THROUGH THU...SE TO S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. BAHAMAS N OF 22N .TONIGHT...SE TO S WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .SUN...S TO SW WINDS 15 TO 25 KT...BECOMING SW 10 TO 20 KT IN THE AFTERNOON. SEAS 4 TO 6 FT. .SUN NIGHT THROUGH MON NIGHT...NW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .TUE THROUGH THU...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS .TONIGHT...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .SUN...SE TO S WINDS 15 TO 20 KT. SEAS 5 TO 7 FT. .SUN NIGHT THROUGH MON NIGHT...SW TO W WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .TUE THROUGH THU...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. ATLC WATERS S 0F 22N W OF 65W .TONIGHT...E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .SUN...SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .SUN NIGHT THROUGH MON NIGHT...SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .TUE THROUGH THU...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W .TONIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. .SUN...E TO SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. .SUN NIGHT THROUGH MON NIGHT...E TO SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. .TUE THROUGH THU...NE TO E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.