337  
FZNT31 KNHC 131737  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
137 PM EDT TUE MAY 13 2025  
 
MARINE WEATHER HF VOICE BROADCAST FOR THE TROPICAL N ATLANTIC  
FROM 07N TO 19N W OF 55W, THE N ATLANTIC FROM 19N TO  
31N W OF 55W INCLUDING THE 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 ATLANTIC FROM  
07N TO 19N W OF 55W  
   
SYNOPSIS  
HIGH PRESSURE N OF BERMUDA ISLAND WILL CONTINUE TO  
SUPPORT STRONG TO NEAR GALE-FORCE NE TO E WINDS OFFSHORE  
COLOMBIA THROUGH LATE WED ALONG WITH MODERATE TO ROUGH SEAS. THE  
HIGH PRESSURE WILL LIFT N AND THEN SE TOWARDS THE CENTRAL  
ATLANTIC SUBTROPICAL WATERS, WHICH WILL KEEP MAINLY MODERATE TO  
FRESH TRADES ACROSS THE CENTRAL AND EASTERN CARIBBEAN WED NIGHT  
THROUGH THU NIGHT, AND GENTLE TO MODERATE EASTERLY WINDS THE  
REMAINDER OF THE FORECAST PERIOD. MODERATE TO FRESH TRADES AND  
MODERATE TO ROUGH SEAS WILL PREVAIL OVER THE TROPICAL ATLANTIC  
WATERS AND PASSAGES THROUGH SAT NIGHT. OTHERWISE, PULSING FRESH  
TO STRONG E WINDS ARE FORECAST IN THE GULF OF HONDURAS FROM LATE  
WED THROUGH SAT NIGHT.  
 
NW CARIBBEAN W OF 85W  
   
THIS AFTERNOON  
E WINDS LESS THAN 10 KT. SEAS 3 FT.    
TONIGHT  
E WINDS 10 TO 15 KT. SEAS 3 FT.    
WED  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED NIGHT  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
THU  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
THU NIGHT  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
FRI  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
SAT  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
SAT NIGHT  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
THIS AFTERNOON  
E WINDS 10 TO 20 KT S OF 18N, AND E LESS THAN  
10 KT ELSEWHERE. SEAS 4 TO 6 FT.    
TONIGHT  
E WINDS 10 TO 20 KT S OF 18N, AND E LESS THAN 10 KT  
ELSEWHERE. SEAS 4 TO 6 FT.    
WED  
E WINDS 10 TO 20 KT S OF 18N, AND E LESS THAN 10 KT  
ELSEWHERE. S OF 18N, SEAS 4 TO 6 FT. ELSEWHERE, SEAS 3 TO 4 FT  
IN THE MORNING, SUBSIDING TO 2 FT OR LESS.    
WED NIGHT  
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT  
ELSEWHERE. SEAS 4 TO 6 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.    
THU  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
THU NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
SAT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
THIS AFTERNOON  
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
TONIGHT  
NE WINDS 20 TO 25 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 6 TO 9 FT.    
WED  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
WED NIGHT  
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 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 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT  
AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
SAT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.  
 
SW CARIBBEAN S OF 11N  
   
THIS AFTERNOON  
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.    
TONIGHT  
NE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
WED  
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
WED NIGHT  
N WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
THU  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
THU NIGHT  
W WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI  
W WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE  
WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT IN THE MORNING,  
SUBSIDING TO 2 FT OR LESS.    
SAT NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
THIS AFTERNOON  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
WED  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 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 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.  
 
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO  
19N W OF 55W  
   
THIS AFTERNOON  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
WED  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 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 20 KT. SEAS 6 TO 8 FT.    
FRI  
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
FRI NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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.  
 
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO  
15N W OF 55W  
   
THIS AFTERNOON  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
WED  
E WINDS 10 TO 15 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 5 TO 7 FT.    
THU NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
FRI  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
FRI NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SAT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SAT NIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.  
 
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS  
FRESH TO STRONG S TO SE WINDS AND ROUGH SEAS TO 8 FT  
WILL LINGER THROUGH THIS EVENING ACROSS THE OFFSHORE WATERS NE  
OF FREEPORT, N OF 28N BETWEEN 74W AND 77W, ASSOCIATED WITH THE  
REMNANTS OF A STATIONARY FRONT. AS THE FRONT LIFTS NORTHEASTWARD  
INTO THE WESTERN ATLANTIC TONIGHT AND WED, WINDS WILL BECOME SW  
BEHIND THE FRONT AND WEAKEN. FARTHER SOUTH, PULSING FRESH TO  
STRONG E WINDS ARE EXPECTED EACH AFTERNOON AND EVENING OFFSHORE  
OF NORTHERN HISPANIOLA THROUGH THU. ELSEWHERE, MODERATE TO  
LOCALLY FRESH TRADE WINDS AND ROUGH SEAS IN MIXED NE AND SE SWELL  
WILL PREVAIL SOUTH OF 25N THIS WEEK, INCLUDING ACROSS THE  
ATLANTIC PASSAGES INTO THE EASTERN CARIBBEAN.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
THIS AFTERNOON  
SW WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
TONIGHT  
SW WINDS LESS THAN 10 KT, SHIFTING TO S AFTER  
MIDNIGHT. SEAS 4 TO 6 FT.    
WED  
SW WINDS 10 TO 15 KT, SHIFTING TO W IN THE AFTERNOON.  
SEAS 3 TO 5 FT.    
WED NIGHT  
S WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 4 FT.    
THU  
SW WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 4 FT.    
THU NIGHT  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI  
SW WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 4 FT.    
FRI NIGHT  
SW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 4 FT.    
SAT  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT NIGHT  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
THIS AFTERNOON  
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT W OF 70W,  
AND 4 TO 5 FT ELSEWHERE.    
TONIGHT  
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT W OF 70W, AND  
4 FT ELSEWHERE.    
WED  
S WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED NIGHT  
S WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.   
THU  
S WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 4 TO 5 FT.    
THU NIGHT  
S WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
FRI  
SW WINDS LESS THAN 10 KT. SEAS 4 FT.    
FRI NIGHT  
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT  
SW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN  
THE AFTERNOON. SEAS 3 TO 4 FT.    
SAT NIGHT  
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
BAHAMAS N OF 22N  
   
THIS AFTERNOON  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
TONIGHT  
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED  
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED NIGHT  
E WINDS LESS THAN 10 KT, SHIFTING TO SE AFTER  
MIDNIGHT. SEAS 3 TO 4 FT.    
THU  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
THU NIGHT  
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS,  
BUILDING TO 3 FT AFTER MIDNIGHT.    
FRI  
E WINDS LESS THAN 10 KT. SEAS 3 FT.    
FRI NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 FT.    
SAT  
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT NIGHT  
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
THIS AFTERNOON  
SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
TONIGHT  
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED  
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED NIGHT  
SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
THU  
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
THU NIGHT  
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
FRI  
SE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
FRI NIGHT  
E WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.   
SAT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT NIGHT  
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
THIS AFTERNOON  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
WED  
E WINDS 10 TO 15 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 4 TO 6 FT.    
THU NIGHT  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
FRI NIGHT  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN THE  
AFTERNOON. SEAS 3 TO 5 FT.    
SAT NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
THIS AFTERNOON  
E WINDS 15 TO 20 KT. SEAS 6 TO 7 FT.    
TONIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.    
WED  
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.    
WED NIGHT  
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.    
THU  
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.    
THU NIGHT  
E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.    
FRI  
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.    
FRI NIGHT  
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.    
SAT  
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SAT NIGHT  
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.  
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