000 FZNT31 KNHC 210811 OFFN20 MARINE WEATHER HF VOICE BROADCAST NWS NATIONAL HURRICANE CENTER MIAMI FL 411 AM EDT TUE MAR 21 2017 MARINE WEATHER HF VOICE BROADCAST FOR THE TROPICAL N ATLANTIC FROM 07N TO 22N BETWEEN 55W AND 64W...THE SW N ATLANTIC 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...STRONG NOCTURNAL TRADES FORECAST ALONG THE NW COAST OF COLOMBIA THIS WEEK. THE PRESSURE GRADIENT WILL STRENGTHEN THU WITH STRONG TO NEAR GALE FORCE NORTHEASTERLY FLOW EXPECTED ACROSS THE NW AND N CENTRAL CARIBBEAN THROUGH EARLY SAT. NW CARIBBEAN W OF 85W .TODAY...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .TONIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .WED...E WINDS LESS THAN 10 KT...SHIFTING TO NE IN THE AFTERNOON. SEAS 3 TO 4 FT. .WED NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .THU...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .THU NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .FRI...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .FRI NIGHT...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .SAT...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. CARIBBEAN N OF 15N BETWEEN 72W AND 85W .TODAY...NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .TONIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .WED...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .WED NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .THU...NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT. .THU NIGHT...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .FRI...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .FRI NIGHT...NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .SAT...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .SAT NIGHT...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. CARIBBEAN FROM 11N TO 15N W OF 72W .TODAY...NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .TONIGHT...NE WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA...AND NE 10 TO 20 KT ELSEWHERE. SEAS 4 TO 6 FT. .WED...E WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF COLOMBIA... AND NE 10 TO 15 KT ELSEWHERE. SEAS 5 TO 7 FT. .WED NIGHT...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .THU...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .THU NIGHT...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .FRI...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .FRI NIGHT...NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .SAT...NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .SAT NIGHT...NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. SW CARIBBEAN S OF 11N .TODAY...NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .TONIGHT...N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .WED...NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .WED NIGHT...N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .THU...NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .THU NIGHT...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .FRI...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .FRI NIGHT...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .SAT...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .SAT NIGHT...NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. CARIBBEAN BETWEEN 64W AND 72W .TODAY...E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .TONIGHT...NE WINDS 15 TO 20 KT GULF OF VENEZUELA... AND E 10 TO 15 KT ELSEWHERE. SEAS 3 TO 5 FT. .WED...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .WED NIGHT...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .THU...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .THU NIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .FRI...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .FRI NIGHT...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .SAT...E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO 19N W OF 55W .TODAY...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .TONIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .WED...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .WED NIGHT...E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .THU...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT. .THU NIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .FRI...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .FRI NIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .SAT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT. OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO 15N W OF 55W .TODAY...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .TONIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. .WED...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .WED NIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT. .THU...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT. .THU NIGHT...E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT. .FRI...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .FRI NIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .SAT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .SAT NIGHT...E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT. SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS .SYNOPSIS...A WEAKENING COLD FRONT ACROSS THE TROPICAL WATERS N OF THE VIRGIN ISLANDS WILL BEGIN TO DRIFT NW ON WED. A SECOND COLD FRONT WILL ENTER THE FAR NW WATERS TONIGHT...REACH FROM BERMUDA TO CENTRAL FLORIDA ON WED NIGHT...THEN WASH OUT ALONG 25N ON THU. STRONG TO NEAR GALE FORCE POST FRONTAL NE TO E WINDS WILL BEGIN TO DIMINISH FROM THE N ON SAT. ATLC WATERS FROM 27N TO 31N W OF 77W .TODAY...W WINDS LESS THAN 10 KT...SHIFTING TO SW IN THE AFTERNOON. SEAS 5 TO 7 FT. .TONIGHT...SW WINDS 10 TO 20 KT. SEAS 5 TO 6 FT. .WED...W WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .WED NIGHT...NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT. .THU...NE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT. .THU NIGHT...E WINDS 15 TO 25 KT. SEAS 8 TO 10 FT. .FRI...E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT. .FRI NIGHT...E WINDS 15 TO 25 KT. SEAS 7 TO 10 FT. .SAT...SE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT. .SAT NIGHT...SE WINDS 15 TO 20 KT. SEAS 6 TO 9 FT. ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W .TODAY...NW WINDS LESS THAN 10 KT W OF 70W...AND NW 10 TO 15 KT ELSEWHERE. SEAS 6 TO 9 FT W OF 70W...AND 8 TO 12 FT ELSEWHERE. .TONIGHT...W OF 70W...W WINDS LESS THAN 10 KT...SHIFTING TO SW AFTER MIDNIGHT. ELSEWHERE...SW WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT. .WED...SW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT. .WED NIGHT...NW WINDS 15 TO 25 KT. SEAS 6 TO 9 FT. .THU...NE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT. .THU NIGHT...NE WINDS 15 TO 25 KT. SEAS 8 TO 12 FT. .FRI...NE WINDS 15 TO 25 KT. SEAS 8 TO 13 FT. .FRI NIGHT...E WINDS 15 TO 25 KT. SEAS 8 TO 13 FT. .SAT...E WINDS 15 TO 25 KT. SEAS 8 TO 11 FT. .SAT NIGHT...E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT. BAHAMAS N OF 22N .TODAY...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .TONIGHT...E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .WED...NE WINDS LESS THAN 10 KT...INCREASING TO 10 TO 15 KT IN THE AFTERNOON. SEAS 3 TO 4 FT. .WED NIGHT...NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. .THU...NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. .THU NIGHT...NE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT. .FRI...NE WINDS 15 TO 25 KT. SEAS 6 TO 8 FT. .FRI NIGHT...E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT. .SAT...E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT. .SAT NIGHT...E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT. ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS .TODAY...NE WINDS 10 KT. SEAS 7 TO 9 FT. .TONIGHT...NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT. .WED...E WINDS LESS THAN 10 KT W OF 70W...AND E 10 TO 15 KT ELSEWHERE. SEAS 6 TO 8 FT. .WED NIGHT...W OF 70W...NE WINDS LESS THAN 10 KT...SHIFTING TO N AFTER MIDNIGHT. ELSEWHERE...NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT. .THU...NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .THU NIGHT...NE WINDS 15 TO 25 KT. SEAS 8 TO 11 FT. .FRI...NE WINDS 20 TO 30 KT. SEAS 9 TO 14 FT. .FRI NIGHT...NE WINDS 25 TO 30 KT. SEAS 11 TO 14 FT. .SAT...E WINDS 20 TO 30 KT. SEAS 10 TO 14 FT. .SAT NIGHT...E WINDS 20 TO 25 KT. SEAS 10 TO 13 FT. ATLC WATERS S OF 22N W OF 65W .TODAY...NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .TONIGHT...E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT. .WED...E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT. .WED NIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .THU...NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT. .THU NIGHT...NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT. .FRI...NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT. .FRI NIGHT...NE WINDS 15 TO 25 KT. SEAS 7 TO 10 FT...BUILDING TO 8 TO 13 FT AFTER MIDNIGHT. .SAT...NE WINDS 15 TO 25 KT. SEAS 9 TO 14 FT. .SAT NIGHT...NE WINDS 15 TO 25 KT. SEAS 8 TO 13 FT. ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W .TODAY...E WINDS LESS THAN 10 KT. SEAS 5 TO 6 FT. .TONIGHT...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .WED...E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT. .WED NIGHT...SE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT. .THU...SE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT. .THU NIGHT...E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT. .FRI...E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT. .FRI NIGHT...E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT. .SAT...E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT. .SAT NIGHT...E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.