003  
FZNT31 KNHC 070229  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1029 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 MID-WEEK. 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 FRI, INCLUDING IN THE  
TROPICAL N ATLANTIC, BEFORE INCREASING SLIGHTLY THIS WEEKEND.  
WINDS WILL START TO INCREASE TO FRESH IN THE CENTRAL CARIBBEAN  
AND OFF COLOMBIA FRI NIGHT, THEN TO FRESH TO STRONG SAT THROUGH  
THE REMAINDER OF THE UPCOMING WEEKEND AS THE PRESSURE GRADIENT  
TIGHTENS.  
 
NW CARIBBEAN W OF 85W  
   
OVERNIGHT  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
WED  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
WED NIGHT  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 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  
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 5 FT.    
SUN  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SUN NIGHT  
VARIABLE WINDS LESS THAN 10 KT, BECOMING  
NE LESS THAN 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
OVERNIGHT  
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 5 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  
   
OVERNIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED  
WITHIN 90 NM OF COAST OF COLOMBIA, E WINDS 10 TO 15 KT,  
DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON. ELSEWHERE, E  
WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED NIGHT  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 4 FT.    
THU  
WITHIN 90 NM OF COAST OF COLOMBIA, E WINDS 10 TO 15 KT,  
DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON. ELSEWHERE, 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 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  
   
OVERNIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
WED  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.    
WED NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.    
THU  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT IN THE MORNING,  
SUBSIDING TO 2 FT OR LESS.    
THU NIGHT  
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS,  
BUILDING TO 3 FT AFTER MIDNIGHT.    
FRI  
VARIABLE WINDS LESS THAN 10 KT, BECOMING E LESS THAN  
10 KT IN THE AFTERNOON. SEAS 3 FT IN THE MORNING, SUBSIDING TO  
2 FT OR LESS.    
FRI NIGHT  
NE WINDS LESS THAN 10 KT. SEAS 3 FT.   
SAT  
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 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  
N WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
OVERNIGHT  
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED  
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN  
THE AFTERNOON. SEAS 3 TO 4 FT.    
WED NIGHT  
GULF OF VENEZUELA, NE WINDS LESS THAN 10 KT.  
ELSEWHERE, E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 FT.    
THU  
GULF OF VENEZUELA, E WINDS LESS THAN 10 KT. ELSEWHERE, E  
WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN THE  
AFTERNOON. SEAS 2 FT OR LESS GULF OF VENEZUELA, AND 3 TO 4 FT  
ELSEWHERE.    
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 5 FT.    
SAT  
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
SAT NIGHT  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 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  
   
OVERNIGHT  
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  
E 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 3 TO 5 FT.    
SAT  
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
SAT NIGHT  
E WINDS 10 TO 20 KT. SEAS 4 TO 6 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  
   
OVERNIGHT  
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 5 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 3 TO 5 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 LOW CENTERED NEAR  
26N64.5W 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 WED NIGHT 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 AND INTO THE UPCOMING WEEKEND.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
OVERNIGHT  
S WINDS LESS THAN 10 KT. SEAS 3 FT.    
WED  
S WINDS 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 LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN THE  
AFTERNOON. SEAS 4 TO 5 FT.    
FRI NIGHT  
S WINDS 10 TO 15 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 4 FT.    
SUN  
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SUN NIGHT  
SE 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  
   
OVERNIGHT  
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 NE 10 TO 20 KT  
ELSEWHERE. SEAS 4 TO 6 FT W OF 70W, AND 7 TO 10 FT ELSEWHERE.    
WED NIGHT  
NE 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  
NE 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 LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SAT NIGHT  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SUN  
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
SUN NIGHT  
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.  
 
BAHAMAS N OF 22N  
   
OVERNIGHT  
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.    
WED NIGHT  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 FT.    
THU  
E WINDS LESS THAN 10 KT. SEAS 3 FT.    
THU NIGHT  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 FT.    
FRI  
SE WINDS 10 TO 15 KT. SEAS 3 FT.    
FRI NIGHT  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 FT.    
SAT  
SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.    
SAT NIGHT  
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.    
SUN  
SE WINDS 10 TO 15 KT. SEAS 3 FT.    
SUN NIGHT  
E WINDS 10 TO 15 KT. SEAS 3 FT.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
OVERNIGHT  
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 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 LESS THAN 10 KT. SEAS 3 TO 4 FT.    
SAT NIGHT  
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  
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
OVERNIGHT  
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED  
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
WED NIGHT  
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 3 TO 4 FT.    
THU  
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
THU NIGHT  
NE WINDS LESS THAN 10 KT, SHIFTING TO E AFTER  
MIDNIGHT. 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  
   
OVERNIGHT  
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 4 TO 5 FT.    
THU  
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.    
THU NIGHT  
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. 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 5 TO 7 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 15 TO 20 KT. SEAS 6 TO 7 FT.  
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