755  
FZNT31 KNHC 061909  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
309 PM EDT TUE MAY 6 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
 
MODERATE TO FRESH EAST TO SOUTHEAST WINDS WILL PULSE  
NORTH OF HONDURAS, INCREASING TO FRESH TO STRONG SPEEDS NIGHTLY  
TONIGHT THROUGH FRI NIGHT. UNSETTLED WEATHER IS EXPECTED TO  
CONTINUE OVER THE EASTERN CARIBBEAN THROUGH MIDWEEK. WINDS WILL  
PULSE TO FRESH NIGHTLY NEAR THE WINDWARD PASSAGE. GENTLE TO  
MODERATE TRADES AND SLIGHT TO MODERATE SEAS ARE EXPECTED OVER  
THE REMAINDER OF THE BASIN THROUGH SAT, INCLUDING IN THE  
TROPICAL N ATLANTIC, BEFORE INCREASING SLIGHTLY THIS WEEKEND.  
WINDS WILL START TO INCREASE OFF COLOMBIA FRI NIGHT THROUGH THE  
UPCOMING WEEKEND AS THE PRESSURE GRADIENT TIGHTENS.  
 
NW CARIBBEAN W OF 85W  
   
TONIGHT
 
E WINDS 10 TO 20 KT. 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 3 TO 5 FT.    
THU
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
THU NIGHT
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
FRI
 
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SUN
 
SE WINDS 10 TO 15 KT, SHIFTING TO S IN THE AFTERNOON.  
SEAS 3 FT.    
SUN NIGHT
 
NE WINDS LESS THAN 10 KT. SEAS 3 FT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
TONIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
THU
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
SUN
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
TONIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED
 
E WINDS LESS THAN 10 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND E 10 TO 15 KT ELSEWHERE. SEAS 3 TO 4 FT.    
WED NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
THU
 
E WINDS LESS THAN 10 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND E 10 TO 15 KT ELSEWHERE. SEAS 3 TO 4 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
SAT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.    
SUN
 
E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.    
SUN NIGHT
 
E WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.  
 
SW CARIBBEAN S OF 11N  
   
TONIGHT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
WED
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
WED NIGHT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
THU
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
THU NIGHT
 
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
FRI
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING NE LESS THAN  
10 KT IN THE AFTERNOON. SEAS 2 FT OR LESS.    
FRI NIGHT
 
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
SUN
 
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 4 TO 6 FT.    
SUN NIGHT
 
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
TONIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED
 
GULF OF VENEZUELA, E WINDS 10 TO 15 KT, SHIFTING TO NE IN  
THE AFTERNOON. ELSEWHERE, E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
THU
 
GULF OF VENEZUELA, NE WINDS LESS THAN 10 KT. ELSEWHERE, E  
WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN THE  
AFTERNOON. SEAS 3 TO 4 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 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 4 FT.    
WED
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
WED NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
THU
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
THU NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.  
 
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO  
15N W OF 55W  
   
TONIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
WED
 
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 5 FT.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
THU
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.  
 
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS  
   
SYNOPSIS
 
THE PRESSURE GRADIENT BETWEEN A 1016 MB LOW CENTERED  
NEAR 26N64W WITH ASSOCIATED TROUGH AND HIGH PRESSURE CENTERED  
OVER THE CENTRAL ATLANTIC IS SUPPORTING FRESH TO LOCALLY STRONG  
NORTHEAST WINDS AND MODERATE TO ROUGH SEAS NORTH AND NORTHEAST OF  
THE LOW. THESE CONDITIONS WILL GRADUALLY SHIFT WESTWARD THROUGH  
MID- WEEK AS THE LOW AND TROUGH DRIFT WESTWARD. WINDS AND SEAS  
WILL START TO DECREASE MID- WEEK AS THE LOW AND TROUGH START TO  
WEAKEN. A STATIONARY FRONT ALONG AND JUST OFFSHORE THE  
SOUTHEASTERN U.S. COAST WILL GRADUALLY LIFT BACK NORTHWEST AS  
WARM FRONT THROUGH MID-WEEK, THEN MAY SLOWLY PUSH OFFSHORE AGAIN  
AT THE END OF THE WEEK.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
TONIGHT
 
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
WED
 
S WINDS LESS THAN 10 KT. SEAS 3 FT.    
WED NIGHT
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING S LESS  
THAN 10 KT AFTER MIDNIGHT. SEAS 3 FT.    
THU
 
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
THU NIGHT
 
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI
 
S WINDS 10 TO 15 KT. SEAS 4 FT.    
FRI NIGHT
 
S WINDS 10 TO 20 KT. SEAS 4 TO 5 FT.    
SAT
 
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN
 
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SUN NIGHT
 
S WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 4 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
TONIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT W OF 70W, AND  
6 TO 9 FT ELSEWHERE.    
WED
 
NE WINDS LESS THAN 10 KT W OF 70W, AND E 10 TO 20 KT  
ELSEWHERE. SEAS 4 TO 6 FT W OF 70W, AND 7 TO 10 FT ELSEWHERE.    
WED NIGHT
 
N WINDS LESS THAN 10 KT W OF 70W, AND E 10 TO 15 KT  
ELSEWHERE. SEAS 4 TO 6 FT W OF 70W, AND 6 TO 9 FT ELSEWHERE.    
THU
 
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.    
THU NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
FRI
 
SE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
FRI NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
SAT
 
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT NIGHT
 
S WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT  
AFTER MIDNIGHT. SEAS 3 TO 5 FT.    
SUN
 
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.  
 
BAHAMAS N OF 22N  
   
TONIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
WED
 
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 FT IN THE MORNING, SUBSIDING TO 2 FT OR  
LESS.    
WED NIGHT
 
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT  
AFTER MIDNIGHT. SEAS 2 FT OR LESS, BUILDING TO 3 FT AFTER  
MIDNIGHT.    
THU
 
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 FT.    
THU NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 FT.    
FRI
 
E WINDS LESS THAN 10 KT, SHIFTING TO SE IN THE AFTERNOON.  
SEAS 3 FT.    
FRI NIGHT
 
E WINDS LESS THAN 10 KT, SHIFTING TO SE AFTER  
MIDNIGHT. SEAS 3 FT.    
SAT
 
SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.    
SAT NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING  
TO 3 FT AFTER MIDNIGHT.    
SUN
 
SE WINDS 10 TO 15 KT. SEAS 3 FT.    
SUN NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 FT.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
TONIGHT
 
NE WINDS 10 TO 15 KT W OF 70W, AND N LESS THAN 10 KT  
ELSEWHERE. SEAS 4 FT W OF 70W, AND 5 TO 7 FT ELSEWHERE.    
WED
 
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
WED NIGHT
 
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
THU
 
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
THU NIGHT
 
NE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
FRI
 
SE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
FRI NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT
 
SE WINDS 10 KT. SEAS 3 TO 4 FT.    
SAT NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SUN
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
TONIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
WED NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
THU
 
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
THU NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
TONIGHT
 
E WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
WED
 
SE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.    
WED NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
THU
 
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
THU NIGHT
 
E WINDS LESS THAN 10 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 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
SUN
 
E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
E WINDS 10 TO 20 KT. SEAS 6 TO 7 FT.  
 
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