440  
FZNT32 KNHC 131738  
OFFN21  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
138 PM EDT TUE MAY 13 2025  
 
MARINE WEATHER HF VOICE BROADCAST FOR THE GULF OF AMERICA  
 
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
 
HIGH PRESSURE OVER THE SOUTHEASTERN GULF SHOULD  
STEADILY STRENGTHEN THIS AFTERNOON THROUGH WED THEN DRIFT  
EASTWARD TOWARDS THE FLORIDA PENINSULA WHERE IT WILL PREVAIL  
THROUGH THE WEEKEND. THIS WILL TIGHTEN THE PRESSURE GRADIENT  
AGAINST BUILDING LOWER PRESSURE OVER THE FAR WESTERN GULF AND  
WILL LEAD TO FRESH TO STRONG SOUTHERLY WINDS AND MODERATE TO  
ROUGH SEAS THROUGH SAT.  
 
GULF OF AMERICA N OF 26N W OF 87W  
   
TONIGHT
 
S WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
WED
 
S WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
WED NIGHT
 
S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.   
THU
 
S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
THU NIGHT
 
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
FRI
 
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SAT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 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
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
GULF OF AMERICA FROM 22N TO 26N W OF 87W  
   
TONIGHT
 
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
WED
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
WED NIGHT
 
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
THU
 
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
THU NIGHT
 
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
FRI
 
SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
FRI NIGHT
 
SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT
 
SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
SUN
 
SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SUN NIGHT
 
SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.  
 
SW GULF OF AMERICA S OF 22N W OF 87W  
   
TONIGHT
 
E 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 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO  
3 TO 4 FT AFTER MIDNIGHT.    
THU
 
SE WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.    
THU NIGHT
 
E WINDS 10 TO 15 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 10 TO 20 KT. SEAS 3 TO 5 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 
GULF OF AMERICA E OF 87W  
   
TONIGHT
 
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
WED
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
WED NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
THU
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
THU NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
FRI
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.   
FRI NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SUN
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.   
SUN NIGHT
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.  
 
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