863  
FZNT32 KNHC 220231  
OFFN21  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1031 PM EDT THU SEP 21 2017  
 
MARINE WEATHER HF VOICE BROADCAST FOR THE GULF OF MEXICO  
 
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 THE GULF OF MEXICO  
   
SYNOPSIS
 
A THERMAL TROUGH WILL DEVELOP EACH EVENING OVER THE  
NW YUCATAN PENINSULA, MOVE W-NW ACROSS THE SW GULF OVERNIGHT AND  
DISSIPATE OVER THE SW GULF WATERS BY LATE EACH MORNING. HIGH  
PRESSURE WILL PREVAIL ELSEWHERE THROUGH TUE.  
 
GULF OF MEXICO N OF 26N W OF 87W  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
FRI
 
E WINDS 10 KT. SEAS 3 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
SAT
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
SUN NIGHT
 
SE WINDS 10 KT. SEAS 3 FT.    
MON
 
SE WINDS 10 KT. SEAS 3 FT.    
MON NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 FT.    
TUE
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE NIGHT
 
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO  
3 FT AFTER MIDNIGHT.  
 
GULF OF MEXICO FROM 22N TO 26N W OF 87W  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
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 3 FT IN THE MORNING,  
SUBSIDING TO 2 FT OR LESS.    
SAT NIGHT
 
E WINDS 10 KT. SEAS 2 FT OR LESS, BUILDING TO 3 FT  
AFTER MIDNIGHT.    
SUN
 
SE WINDS LESS THAN 10 KT. SEAS 3 FT IN THE MORNING,  
SUBSIDING TO 2 FT OR LESS.    
SUN NIGHT
 
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 2 FT OR LESS, BUILDING TO 3 FT AFTER  
MIDNIGHT.    
MON
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
MON NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.  
 
SW GULF OF MEXICO S OF 22N W OF 87W  
   
OVERNIGHT
 
E WINDS LESS THAN 10 KT WITHIN 60 NM OF COAST OF  
VERACRUZ, AND NE 10 TO 15 KT ELSEWHERE. SEAS 2 FT OR LESS,  
BUILDING TO 3 FT AFTER MIDNIGHT.    
FRI
 
WITHIN 60 NM OF COAST OF VERACRUZ, SE 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.    
FRI NIGHT
 
WITHIN 60 NM OF COAST OF VERACRUZ, E WINDS LESS  
THAN 10 KT. ELSEWHERE, NE WINDS LESS THAN 10 KT, INCREASING TO  
10 TO 15 KT AFTER MIDNIGHT. SEAS 2 FT OR LESS, BUILDING TO 3 FT  
AFTER MIDNIGHT.    
SAT
 
WITHIN 60 NM OF COAST OF VERACRUZ, SE WINDS LESS THAN  
10 KT. ELSEWHERE, 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.    
SAT NIGHT
 
NE WINDS LESS THAN 10 KT, SHIFTING TO E AFTER  
MIDNIGHT. SEAS 2 FT OR LESS.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.    
SUN NIGHT
 
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT  
AFTER MIDNIGHT. SEAS 2 FT OR LESS, BUILDING TO 3 FT AFTER  
MIDNIGHT.    
MON
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
MON NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TUE NIGHT
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.  
 
GULF OF MEXICO E OF 87W  
   
OVERNIGHT
 
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
FRI
 
NE WINDS 10 KT. SEAS 2 FT OR LESS.    
FRI NIGHT
 
NE WINDS 10 KT. SEAS 2 FT OR LESS, BUILDING TO 3 FT  
AFTER MIDNIGHT.    
SAT
 
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT NIGHT
 
E WINDS 10 KT. SEAS 2 FT OR LESS, BUILDING TO 3 FT  
AFTER MIDNIGHT.    
SUN
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SUN NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
MON
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.   
MON NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
TUE
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
TUE NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.  
 
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