030  
FZNT31 KNHC 220247  
OFFN20  
 
MARINE WEATHER HF VOICE BROADCAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1047 PM EDT THU SEP 21 2017  
 
MARINE WEATHER HF VOICE BROADCAST FOR THE TROPICAL N ATLANTIC  
FROM 07N TO 22N BETWEEN 55W AND 64W, THE SW N ATLANTIC S OF  
31N W OF 65W INCLUDING 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 ATLC FROM 07N TO 19N  
BETWEEN 55W AND 64W  
   
SYNOPSIS
 
HURRICANE MARIA IS CENTERED AT 21.0N 70.2W 955 MB AT  
11 PM EDT MOVING NW OR 320 DEGREES AT 7 KT. MAXIMUM SUSTAINED  
WINDS ARE 110 KT WITH GUSTS TO 135 KT. MARIA IS FORECAST TO  
REACH NEAR 22.0N 70.8W AT 8 AM EDT FRI, WEAKEN TO 105 KT GUSTS  
TO 130 KT NEAR 23.5N 71.5W AT 8 PM EDT FRI, WEAKEN TO 100 KT  
GUSTS TO 120 KT NEAR 25.1N 72.0W AT 8 AM EDT SAT, WEAKEN TO  
95 KT GUSTS 115 KT NEAR 26.7N 72.3W AT 8 PM EDT SAT, WEAKEN TO  
90 KT GUSTS 110 KT NEAR 29.3N 72.1W AT 8 PM SUN, THEN PASS  
THROUGH 31.2N 71.0W AT 8 PM EDT MON. MODERATE TO LOCALLY FRESH  
TRADES WILL RETURN ACROSS THE AREA BY SUN EVENING. STRONG  
NOCTURNAL TRADES WILL RESUME ALONG THE NW COAST OF VENEZUELA,  
ALONG THE NE COAST OF COLOMBIA AND ACROSS THE GULF OF HONDURAS  
ON MON EVENING.  
 
NW CARIBBEAN W OF 85W  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT.    
FRI
 
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.    
FRI NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING  
TO 3 FT AFTER MIDNIGHT.    
SAT
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SAT NIGHT
 
E WINDS 10 KT. SEAS 2 FT OR LESS.    
SUN
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SUN NIGHT
 
E WINDS 10 TO 20 KT. SEAS 2 FT OR LESS, BUILDING TO  
3 FT AFTER MIDNIGHT.    
MON
 
SE WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.    
MON NIGHT
 
E WINDS 15 TO 25 KT. SEAS 3 TO 5 FT.    
TUE
 
E WINDS 15 TO 25 KT. SEAS 4 TO 6 FT.  
 
CARIBBEAN N OF 15N BETWEEN 72W AND 85W  
   
OVERNIGHT
 
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT S OF 18N, AND  
2 FT OR LESS ELSEWHERE.    
FRI
 
S OF 18N, NW WINDS LESS THAN 10 KT. ELSEWHERE, NE 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.    
FRI NIGHT
 
NE 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 10 TO 15 KT S OF 18N, AND SE LESS THAN 10 KT  
ELSEWHERE. S OF 18N, SEAS 2 FT OR LESS, BUILDING TO 3 TO 4 FT IN  
THE AFTERNOON. ELSEWHERE, SEAS 2 FT OR LESS.    
SUN NIGHT
 
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT S OF 18N, AND  
2 FT OR LESS ELSEWHERE.    
MON
 
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT S OF 18N, AND 2 FT  
OR LESS ELSEWHERE.    
MON NIGHT
 
E WINDS 10 TO 20 KT. S OF 18N, SEAS 4 TO 6 FT.  
ELSEWHERE, SEAS 2 FT OR LESS, BUILDING TO 3 FT AFTER MIDNIGHT.    
TUE
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT S OF 18N, AND 3 FT  
ELSEWHERE.  
 
CARIBBEAN FROM 11N TO 15N W OF 72W  
   
OVERNIGHT
 
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI
 
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
NW WINDS LESS THAN 10 KT IN THE EVENING, BECOMING  
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.    
SAT
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS THAN  
10 KT IN THE AFTERNOON. SEAS 2 FT OR LESS.    
SAT NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO 3 TO  
4 FT IN THE AFTERNOON.    
SUN NIGHT
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
MON
 
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.    
MON NIGHT
 
NE WINDS 10 TO 20 KT WITHIN 90 NM OF COAST OF  
COLOMBIA, AND E 15 TO 25 KT ELSEWHERE. SEAS 4 TO 6 FT.    
TUE
 
E WINDS 10 TO 20 KT WITHIN 90 NM OF COAST OF COLOMBIA,  
AND SE 15 TO 25 KT ELSEWHERE. SEAS 4 TO 6 FT.  
 
SW CARIBBEAN S OF 11N  
   
OVERNIGHT
 
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI
 
SW WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.    
FRI NIGHT
 
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.   
SAT
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS THAN  
10 KT IN THE AFTERNOON. SEAS 3 FT IN THE MORNING, SUBSIDING TO  
2 FT OR LESS.    
SAT NIGHT
 
VARIABLE WINDS LESS THAN 10 KT, BECOMING E LESS  
THAN 10 KT AFTER MIDNIGHT. SEAS 2 FT OR LESS.    
SUN
 
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.   
SUN NIGHT
 
S WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
MON
 
S WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
MON NIGHT
 
SW WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.    
TUE
 
W WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.  
 
CARIBBEAN BETWEEN 64W AND 72W  
   
OVERNIGHT
 
N WINDS 10 KT GULF OF VENEZUELA, AND SE 15 TO 25 KT  
ELSEWHERE. GULF OF VENEZUELA, SEAS 3 FT, SUBSIDING TO 2 FT OR  
LESS. ELSEWHERE, SEAS 5 TO 7 FT.    
FRI
 
VARIABLE WINDS LESS THAN 10 KT GULF OF VENEZUELA, AND SE  
10 TO 20 KT ELSEWHERE. SEAS 2 FT OR LESS GULF OF VENEZUELA, AND  
4 TO 6 FT ELSEWHERE.    
FRI NIGHT
 
SE WINDS 10 TO 20 KT. SEAS 2 FT OR LESS GULF OF  
VENEZUELA, AND 4 TO 6 FT ELSEWHERE.    
SAT
 
VARIABLE WINDS LESS THAN 10 KT GULF OF VENEZUELA, AND SE  
10 TO 20 KT ELSEWHERE. SEAS 2 FT OR LESS GULF OF VENEZUELA, AND  
4 TO 6 FT ELSEWHERE.    
SAT NIGHT
 
NE WINDS LESS THAN 10 KT GULF OF VENEZUELA, AND SE  
10 TO 20 KT ELSEWHERE. SEAS 2 FT OR LESS GULF OF VENEZUELA, AND  
4 TO 6 FT ELSEWHERE.    
SUN
 
SE WINDS 10 TO 20 KT. SEAS 2 FT OR LESS GULF OF  
VENEZUELA, AND 4 TO 6 FT ELSEWHERE.    
SUN NIGHT
 
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT GULF OF  
VENEZUELA, AND 5 TO 7 FT ELSEWHERE.    
MON
 
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT GULF OF VENEZUELA,  
AND 5 TO 7 FT ELSEWHERE.    
MON NIGHT
 
NE WINDS 10 TO 20 KT GULF OF VENEZUELA, AND E 15 TO  
25 KT ELSEWHERE. SEAS 5 TO 7 FT.    
TUE
 
E WINDS 10 TO 20 KT GULF OF VENEZUELA, AND E 15 TO 25 KT  
ELSEWHERE. SEAS 5 TO 7 FT.  
 
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO  
19N W OF 55W  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.    
FRI
 
SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SAT
 
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SAT NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
SUN NIGHT
 
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
MON
 
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
MON NIGHT
 
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
TUE
 
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 20 KT. SEAS 4 TO 6 FT.    
FRI
 
SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
FRI NIGHT
 
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
SAT
 
E WINDS 10 TO 20 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 5 TO 7 FT.    
MON
 
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
MON NIGHT
 
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
TUE
 
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.  
 
SYNOPSIS FOR THE SW N ATLC INCLUDING THE BAHAMAS  
   
SYNOPSIS
 
HURRICANE MARIA IS CENTERED AT 21.0N 70.2W 955 MB AT  
11 PM EDT MOVING NW OR 320 DEGREES AT 7 KT. MAXIMUM SUSTAINED  
WINDS ARE 110 KT WITH GUSTS TO 135 KT. MARIA IS FORECAST TO REACH  
NEAR 22.0N 70.8W AT 8 AM EDT FRI, WEAKEN TO 105 KT GUSTS TO 130  
KT NEAR 23.5N 71.5W AT 8 PM EDT FRI, WEAKEN TO 100 KT GUSTS TO  
120 KT NEAR 25.1N 72.0W AT 8 AM EDT SAT, WEAKEN TO 95 KT GUSTS  
115 KT NEAR 26.7N 72.3W AT 8 PM EDT SAT, WEAKEN TO 90 KT GUSTS  
110 KT NEAR 29.3N 72.1W AT 8 PM SUN, THEN PASS NORTH OF THE AREA  
NEAR 31.2N 71.0W AT 8 PM EDT MON.  
 
ATLC WATERS FROM 27N TO 31N W OF 77W  
   
OVERNIGHT
 
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.    
FRI
 
NE WINDS 10 TO 15 KT. SEAS 8 TO 11 FT.    
FRI NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 9 TO 14 FT.    
SAT
 
NE WINDS 10 TO 20 KT. SEAS 11 TO 16 FT.    
SAT NIGHT
 
NE WINDS 10 TO 20 KT. SEAS 12 TO 17 FT.    
SUN
 
N WINDS 10 TO 20 KT. SEAS 11 TO 16 FT.    
SUN NIGHT
 
N WINDS 10 TO 20 KT. SEAS 11 TO 14 FT.    
MON
 
N WINDS 10 TO 20 KT. SEAS 8 TO 13 FT.    
MON NIGHT
 
N WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.    
TUE
 
NW WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.  
 
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W  
   
..HURRICANE WARNING
 
 
   
OVERNIGHT
 
E WINDS 10 TO 15 KT. SEAS 9 TO 12 FT.    
FRI
 
E WINDS 10 TO 15 KT. SEAS 11 TO 16 FT W OF 70W, AND 9 TO  
13 FT ELSEWHERE.    
FRI NIGHT
 
TROPICAL STORM CONDITIONS POSSIBLE. W OF 70W, NE  
WINDS 10 TO 20 KT, INCREASING TO 20 TO 30 KT AFTER MIDNIGHT.  
ELSEWHERE, E WINDS 15 TO 25 KT. SEAS 14 TO 19 FT W OF 70W, AND  
10 TO 15 FT ELSEWHERE.    
SAT
 
TROPICAL STORM CONDITIONS EXPECTED. W OF 70W, NE WINDS  
30 TO 40 KT, INCREASING TO 45 TO 55 KT IN THE AFTERNOON,SEAS  
17 TO 22 FT, BUILDING TO 18 TO 28 FT IN THE AFTERNOON.  
ELSEWHERE, SE WINDS 25 TO 35 KT,SEAS 12 TO 17 FT.    
SAT NIGHT
 
HURRICANE CONDITIONS POSSIBLE. NE WINDS 75 TO  
85 KT W OF 70W, AND SE 30 TO 40 KT ELSEWHERE. SEAS 22 TO 32 FT W  
OF 70W, AND 13 TO 18 FT ELSEWHERE.    
SUN
 
HURRICANE CONDITIONS POSSIBLE.    
SUN NIGHT
 
HURRICANE CONDITIONS POSSIBLE.    
MON
 
HURRICANE CONDITIONS POSSIBLE.    
MON NIGHT
 
HURRICANE CONDITIONS POSSIBLE.    
TUE
 
HURRICANE CONDITIONS POSSIBLE.  
 
BAHAMAS N OF 22N  
   
..TROPICAL STORM WARNING
 
 
   
OVERNIGHT
 
TROPICAL STORM CONDITIONS POSSIBLE. NE WINDS 20 TO  
30 KT. SEAS 4 TO 6 FT.    
FRI
 
TROPICAL STORM CONDITIONS EXPECTED. NE WINDS 35 TO  
45 KT. SEAS 6 TO 9 FT.    
FRI NIGHT
 
TROPICAL STORM CONDITIONS POSSIBLE. NE WINDS 30 TO  
40 KT. SEAS 7 TO 10 FT.    
SAT
 
TROPICAL STORM CONDITIONS POSSIBLE. N WINDS 20 TO 30 KT.  
SEAS 7 TO 10 FT.    
SAT NIGHT
 
TROPICAL STORM CONDITIONS POSSIBLE. N WINDS 20 TO  
30 KT. SEAS 6 TO 9 FT.    
SUN
 
NW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SUN NIGHT
 
NW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.    
MON
 
W WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.    
MON NIGHT
 
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TUE
 
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS  
   
..HURRICANE WARNING
 
 
   
OVERNIGHT
 
TROPICAL STORM CONDITIONS. W OF 70W, NE WINDS  
50 TO 60 KT, BECOMING E 60 TO 70 KT AFTER MIDNIGHT,SEAS 16 TO  
21 FT, BUILDING TO 15 TO 25 FT AFTER MIDNIGHT. ELSEWHERE, E  
WINDS 50 TO 65 KT,SEAS 14 TO 19 FT.    
FRI
 
HURRICANE CONDITIONS EXPECTED. W OF 70W, NE WINDS 75 TO  
95 KT. ELSEWHERE, E WINDS 60 TO 70 KT, BECOMING SE 45 TO 55 KT  
IN THE AFTERNOON. SEAS 21 TO 31 FT W OF 70W, AND 15 TO 20 FT  
ELSEWHERE.    
FRI NIGHT
 
HURRICANE CONDITIONS EXPECTED. NE WINDS 75 TO  
95 KT W OF 70W, AND SE 40 TO 50 KT ELSEWHERE. SEAS 23 TO 33 FT W  
OF 70W, AND 13 TO 18 FT ELSEWHERE.    
SAT
 
HURRICANE CONDITIONS EXPECTED. W OF 70W, N WINDS 80 TO  
90 KT, SHIFTING TO W IN THE AFTERNOON. ELSEWHERE, SE WINDS 30 TO  
40 KT. SEAS 23 TO 33 FT W OF 70W, AND 12 TO 17 FT ELSEWHERE.    
SAT NIGHT
 
HURRICANE CONDITIONS POSSIBLE. SW WINDS 75 TO  
85 KT W OF 70W, AND SE 30 TO 40 KT ELSEWHERE. W OF 70W, SEAS  
20 TO 30 FT, SUBSIDING TO 16 TO 26 FT AFTER MIDNIGHT. ELSEWHERE,  
SEAS 10 TO 15 FT.    
SUN
 
HURRICANE CONDITIONS POSSIBLE.    
SUN NIGHT
 
TROPICAL STORM CONDITIONS POSSIBLE.    
MON
 
TROPICAL STORM CONDITIONS POSSIBLE.    
MON NIGHT
 
TROPICAL STORM CONDITIONS POSSIBLE.    
TUE
 
S WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.  
 
ATLC WATERS S OF 22N W OF 65W  
   
..HURRICANE WARNING
 
 
   
OVERNIGHT
 
HURRICANE CONDITIONS. E WINDS 85 TO 95 KT. SEAS  
16 TO 21 FT.    
FRI
 
HURRICANE CONDITIONS EXPECTED. S WINDS 80 TO 95 KT. SEAS  
11 TO 16 FT.    
FRI NIGHT
 
TROPICAL STORM CONDITIONS EXPECTED. S WINDS 30 TO  
40 KT, BECOMING SW 20 TO 30 KT AFTER MIDNIGHT. SEAS 8 TO 13 FT.    
SAT
 
SW WINDS 20 TO 30 KT. SEAS 7 TO 10 FT.    
SAT NIGHT
 
S WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
SUN
 
S WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.    
SUN NIGHT
 
S WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.    
MON
 
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.    
MON NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.    
TUE
 
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.  
 
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W  
   
OVERNIGHT
 
E WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.    
FRI
 
SE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.    
FRI NIGHT
 
SE WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.    
SAT
 
SE WINDS 10 TO 20 KT. SEAS 7 TO 8 FT.    
SAT NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.    
SUN
 
SE WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.    
SUN NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.    
MON
 
SE WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.    
MON NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 7 TO 8 FT.    
TUE
 
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.  
 
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