468
FZNT31 KNHC 152109
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
509 PM EDT FRI AUG 15 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
HURRICANE ERIN IS NEAR 18.9N 57.6W AT 5 PM EDT, AND
IS MOVING WEST-NORTHWEST AT 15 KT. MAXIMUM SUSTAINED WINDS ARE
65 KT WITH GUSTS TO 80 KT, AND THE MINIMUM CENTRAL PRESSURE IS
993 MB. ERIN WILL MOVE TO NEAR 19.6N 59.9W LATE TONIGHT AND TO
NEAR 20.4N 62.7W SAT AFTERNOON WITH MAXIMUM SUSTAINED WINDS
90 KT GUSTS 110 KT. ERIN IS FORECAST TO CONTINUE TO STRENGTHEN
AS IT NEARS 21.2N 65.1W LATE SAT NIGHT WITH MAXIMUM SUSTAINED
WINDS 105 KT GUSTS 120 KT, AND REMAIN AS A MAJOR HURRICANE
DURING THE WEEKEND WHILE IT MOVES ACROSS THE WATERS NORTH OF THE
GREATER ANTILLES. ELSEWHERE IN THE WAKE OF ERIN, HIGH PRESSURE
WILL MAINTAIN MODERATE TO MOSTLY FRESH EASTERLY WINDS WILL
PREVAIL THROUGH EARLY NEXT WEEK ALONG WITH SLIGHT TO MODERATE
SEAS.
NW CARIBBEAN W OF 85W
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
SAT
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
SUN
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN NIGHT
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
MON
E WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
MON NIGHT
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
TUE
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
TUE NIGHT
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
WED
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TONIGHT
NE WINDS 10 TO 15 KT S OF 18N, AND E 15 TO 25 KT
ELSEWHERE. SEAS 3 TO 4 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
SAT NIGHT
NE WINDS 10 TO 20 KT. SEAS 3 FT IN THE EVENING,
SUBSIDING TO 2 FT OR LESS.
SUN
N WINDS LESS THAN 10 KT S OF 18N, AND NE 10 TO 15 KT
ELSEWHERE. SEAS 2 FT OR LESS.
SUN NIGHT
NW WINDS LESS THAN 10 KT S OF 18N, AND NE 10 TO
15 KT ELSEWHERE. SEAS 2 FT OR LESS.
MON
NE WINDS LESS THAN 10 KT, SHIFTING TO W IN THE AFTERNOON.
SEAS 2 FT OR LESS.
MON NIGHT
W WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
TUE
S WINDS LESS THAN 10 KT S OF 18N, AND NW 10 TO 15 KT
ELSEWHERE. SEAS 2 FT OR LESS.
TUE NIGHT
S WINDS LESS THAN 10 KT S OF 18N, AND W 10 TO 15 KT
ELSEWHERE. SEAS 2 FT OR LESS.
WED
SE WINDS LESS THAN 10 KT S OF 18N, AND SW 10 TO 15 KT
ELSEWHERE. SEAS 2 FT OR LESS.
CARIBBEAN FROM 11N TO 15N W OF 72W
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN NIGHT
WITHIN 90 NM OF COAST OF COLOMBIA, SW TO W WINDS 10
TO 15 KT. ELSEWHERE, NW WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT.
MON
SW WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT.
MON NIGHT
W WINDS LESS THAN 10 KT, SHIFTING TO NE AFTER
MIDNIGHT. SEAS 2 TO 3 FT.
TUE
VARIABLE WINDS LESS THAN 10 KT, BECOMING SE LESS THAN
10 KT IN THE AFTERNOON. SEAS 2 TO 3 FT.
TUE NIGHT
E WINDS LESS THAN 10 KT. SEAS 2 TO 3 FT.
WED
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SW CARIBBEAN S OF 11N
TONIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
NW TO N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT NIGHT
NW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN
W WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN NIGHT
W WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
MON NIGHT
SW WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 TO 4 FT.
TUE
SE WINDS LESS THAN 10 KT. SEAS 2 TO 4 FT.
TUE NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING E LESS
THAN 10 KT LATE. SEAS 2 TO 4 FT.
WED
NE WINDS LESS THAN 10 KT. SEAS 2 TO 4 FT.
CARIBBEAN BETWEEN 64W AND 72W
TONIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
SAT
GULF OF VENEZUELA, NE WINDS 10 TO 15 KT. ELSEWHERE, E
WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
SAT NIGHT
NE WINDS LESS THAN 10 KT GULF OF VENEZUELA, AND E
10 TO 15 KT ELSEWHERE. SEAS 3 FT.
SUN
GULF OF VENEZUELA, VARIABLE WINDS LESS THAN 10 KT,
BECOMING SW LESS THAN 10 KT IN THE AFTERNOON. ELSEWHERE, S WINDS
10 TO 20 KT. SEAS 3 TO 4 FT.
SUN NIGHT
VARIABLE WINDS LESS THAN 10 KT GULF OF VENEZUELA,
AND S 10 TO 20 KT ELSEWHERE. SEAS 2 FT OR LESS GULF OF
VENEZUELA, AND 3 TO 4 FT ELSEWHERE.
MON
GULF OF VENEZUELA, VARIABLE WINDS LESS THAN 10 KT,
BECOMING NW LESS THAN 10 KT IN THE AFTERNOON. ELSEWHERE, S WINDS
10 TO 15 KT. SEAS 2 FT OR LESS GULF OF VENEZUELA, AND 3 TO 4 FT
ELSEWHERE.
MON NIGHT
NE WINDS LESS THAN 10 KT GULF OF VENEZUELA, AND SE
10 TO 15 KT ELSEWHERE. GULF OF VENEZUELA, SEAS 2 FT OR LESS.
ELSEWHERE, SEA 2 TO 3 FT.
TUE
GULF OF VENEZUELA, VARIABLE WINDS LESS THAN 10 KT,
BECOMING N LESS THAN 10 KT IN THE AFTERNOON,SEAS 2 FT OR LESS.
ELSEWHERE, SE WINDS 10 TO 15 KT, SEAS 3 TO 4 FT.
TUE NIGHT
NE WINDS LESS THAN 10 KT GULF OF VENEZUELA, AND E
10 TO 15 KT ELSEWHERE. SEAS 3 FT.
WED
NE WINDS LESS THAN 10 KT GULF OF VENEZUELA, AND E 10 TO
15 KT ELSEWHERE. SEAS 3 TO 4 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
..TROPICAL STORM WARNING
TONIGHT
TROPICAL STORM CONDITIONS POSSIBLE. W WINDS 45 TO
55 KT, BECOMING SW 20 TO 30 KT AFTER MIDNIGHT. SEAS 6 TO 8 FT.
SAT
TROPICAL STORM CONDITIONS POSSIBLE. S WINDS 20 TO 30 KT.
SEAS 5 TO 7 FT.
SAT NIGHT
SE WINDS 20 TO 30 KT. SEAS 4 TO 6 FT.
SUN
SE WINDS 15 TO 25 KT. SEAS 4 TO 6 FT.
SUN NIGHT
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
MON
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TONIGHT
S 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 4 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
MON
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
HURRICANE ERIN IS NEAR 18.9N 57.6W AT 5 PM EDT, AND
IS MOVING WEST-NORTHWEST AT 15 KT. MAXIMUM SUSTAINED WINDS ARE
65 KT WITH GUSTS TO 80 KT, AND THE MINIMUM CENTRAL PRESSURE IS
993 MB. ERIN WILL MOVE TO NEAR 19.6N 59.9W LATE TONIGHT AND TO
NEAR 20.4N 62.7W SAT AFTERNOON WITH MAXIMUM SUSTAINED WINDS
90 KT GUSTS 110 KT. ERIN IS FORECAST TO CONTINUE TO STRENGTHEN
AS IT NEARS 21.2N 65.1W LATE SAT NIGHT WITH MAXIMUM SUSTAINED
WINDS 105 KT GUSTS 120 KT, MOVE TO NEAR 22.3N 67.1W SUN AFTERNOON
WITH MAXIMUM SUSTAINED WINDS 115 KT GUSTS 140 KT, TO NEAR 23.4N
68.5W LATE SUN NIGHT AND TO NEAR 24.8N 69.5W MON AFTERNOON WITH
MAXIMUM SUSTAINED WINDS 125 KT GUSTS 150 KT. ERIN IS FORECAST TO
CHANGE LITTLE IN INTENSITY AS IT MOVES TO NEAR 27.9N 70.6W TUE
AFTERNOON AND LIFT NORTH OF THE AREA EARLY WED. LONG PERIOD EAST
TO SOUTHEAST SWELL WILL SPREAD TO THE WESTERN ATLANTIC BEGINNING
LATE SUN AND INTO NEXT WEEK. OTHERWISE, HIGH PRESSURE WILL WEAKEN
OVER THE WESTERN PART OF THE AREA THROUGH THE WEEKEND AS ERIN
LIFTS NORTHWARD. A TIGHT GRADIENT BETWEEN THE CYCLONIC FLOW
ASSOCIATED WITH ERIN AND A HIGH PRESSURE THAT SURGES SOUTHWARD
OFF THE SOUTHEAST U.S. COAST WILL LEAD TO FRESH NORTH TO
NORTHEAST WINDS OVER THE WATERS EAST OF NORTHERN FLORIDA TO NEAR
74W EARLY NEXT WEEK.
ATLC WATERS FROM 27N TO 31N W OF 77W
TONIGHT
S WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SAT
S WINDS LESS THAN 10 KT, SHIFTING TO NW IN THE AFTERNOON.
SEAS 2 FT OR LESS.
SAT NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN NIGHT
N TO NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
MON
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE
N WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
TUE NIGHT
N WINDS 15 TO 25 KT. SEAS 8 TO 12 FT.
WED
N WINDS 15 TO 25 KT. SEAS 9 TO 12 FT, BUILDING TO 10 TO
15 FT IN THE AFTERNOON.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TONIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SAT
W OF 70W, SE WINDS LESS THAN 10 KT, INCREASING TO 10 TO
15 KT IN THE AFTERNOON. ELSEWHERE, E WINDS 10 TO 15 KT. SEAS
3 TO 4 FT.
SAT NIGHT
N WINDS LESS THAN 10 KT W OF 70W, AND E 10 TO 15 KT
ELSEWHERE. SEAS 3 TO 4 FT W OF 70W, AND 4 TO 6 FT ELSEWHERE.
SUN
NW WINDS LESS THAN 10 KT W OF 70W, AND SE 10 TO 15 KT
ELSEWHERE. SEAS 4 TO 6 FT W OF 70W, AND 6 TO 9 FT ELSEWHERE.
SUN NIGHT
TROPICAL STORM CONDITIONS POSSIBLE. NE WINDS 10 TO
20 KT. SEAS 6 TO 9 FT W OF 70W, AND 8 TO 11 FT ELSEWHERE.
MON
HURRICANE CONDITIONS POSSIBLE.
MON NIGHT
HURRICANE CONDITIONS POSSIBLE.
TUE
HURRICANE CONDITIONS POSSIBLE.
TUE NIGHT
HURRICANE CONDITIONS POSSIBLE.
WED
NW WINDS 95 TO 115 KT W OF 70W, AND S 90 TO 110 KT
ELSEWHERE. SEAS 18 TO 28 FT W OF 70W, AND 16 TO 21 FT ELSEWHERE.
BAHAMAS N OF 22N
TONIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
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 TO 4 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON
N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON NIGHT
N WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE
NW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE NIGHT
NW WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED
W WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
..HURRICANE WARNING
TONIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT
TROPICAL STORM CONDITIONS POSSIBLE. E WINDS 10 TO 20 KT.
SEAS 4 TO 6 FT W OF 70W, AND 6 TO 9 FT ELSEWHERE.
SAT NIGHT
HURRICANE CONDITIONS POSSIBLE. W OF 70W, NE WINDS
10 TO 15 KT, SEAS 5 TO 7 FT. ELSEWHERE, NE WINDS 15 TO 25 KT,
INCREASING TO 35 TO 45 KT AFTER MIDNIGHT,SEAS 7 TO 10 FT,
BUILDING TO 9 TO 14 FT AFTER MIDNIGHT.
SUN
TROPICAL STORM CONDITIONS EXPECTED. W OF 70W, NE WINDS
10 TO 20 KT, SEAS 7 TO 10 FT. ELSEWHERE, NE WINDS 55 TO 65 KT,
BECOMING E 85 TO 105 KT IN THE AFTERNOON,SEAS 12 TO 17 FT,
BUILDING TO 16 TO 21 FT IN THE AFTERNOON.
SUN NIGHT
HURRICANE CONDITIONS POSSIBLE. NE WINDS 20 TO
30 KT W OF 70W, AND E 95 TO 115 KT ELSEWHERE. W OF 70W, SEAS
8 TO 11 FT, BUILDING TO 9 TO 14 FT AFTER MIDNIGHT. ELSEWHERE,
SEAS 17 TO 22 FT.
MON
HURRICANE CONDITIONS POSSIBLE.
MON NIGHT
HURRICANE CONDITIONS POSSIBLE.
TUE
HURRICANE CONDITIONS POSSIBLE.
TUE NIGHT
HURRICANE CONDITIONS POSSIBLE.
WED
SW WINDS 20 TO 30 KT W OF 70W, AND S 20 TO 30 KT
ELSEWHERE. W OF 70W, SEAS 10 TO 15 FT. ELSEWHERE, SEAS 9 TO
14 FT, SUBSIDING TO 8 TO 11 FT IN THE AFTERNOON.
ATLC WATERS S OF 22N W OF 65W
..HURRICANE WARNING
TONIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT
TROPICAL STORM CONDITIONS POSSIBLE. NE WINDS 10 TO
20 KT. SEAS 5 TO 7 FT.
SAT NIGHT
TROPICAL STORM CONDITIONS EXPECTED. NE WINDS 20 TO
30 KT, INCREASING TO 80 TO 90 KT AFTER MIDNIGHT. SEAS 7 TO
10 FT, BUILDING TO 8 TO 13 FT AFTER MIDNIGHT.
SUN
HURRICANE CONDITIONS EXPECTED. N WINDS 90 TO 100 KT.
SEAS 9 TO 14 FT.
SUN NIGHT
HURRICANE CONDITIONS POSSIBLE. NW WINDS 35 TO
45 KT, BECOMING W 20 TO 30 KT AFTER MIDNIGHT. SEAS 8 TO 11 FT.
MON
TROPICAL STORM CONDITIONS POSSIBLE.
MON NIGHT
SW WINDS 20 TO 30 KT. SEAS 7 TO 10 FT.
TUE
SW WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
TUE NIGHT
S WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED
S WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
..HURRICANE WARNING
TONIGHT
TROPICAL STORM CONDITIONS. E WINDS 55 TO 70 KT. SEAS
9 TO 14 FT.
SAT
TROPICAL STORM CONDITIONS EXPECTED. SE WINDS 65 TO
80 KT. SEAS 11 TO 16 FT.
SAT NIGHT
HURRICANE CONDITIONS EXPECTED. SE WINDS 80 TO
90 KT, INCREASING TO 80 TO 100 KT AFTER MIDNIGHT. SEAS 11 TO
16 FT.
SUN
TROPICAL STORM CONDITIONS EXPECTED. SE WINDS 40 TO
50 KT, DIMINISHING TO 25 TO 35 KT IN THE AFTERNOON. SEAS 8 TO
13 FT, SUBSIDING TO 6 TO 9 FT IN THE AFTERNOON.
SUN NIGHT
TROPICAL STORM CONDITIONS POSSIBLE. SE WINDS 20 TO
30 KT. SEAS 6 TO 9 FT.
MON
SE WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
MON NIGHT
SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE
SE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
WED
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
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