136
FZNT31 KNHC 131503
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1103 AM EDT WED AUG 13 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
TROPICAL STORM ERIN IS NEAR 16.3N 43.4W AT 11 AM
EDT, AND IS MOVING WEST AT 15 KT. MAXIMUM SUSTAINED WINDS ARE
40 KT WITH GUSTS TO 50 KT, AND THE MINIMUM CENTRAL PRESSURE IS
1004 MB. ERIN WILL MOVE TO 16.3N 45.6W THIS EVENING, 16.6N 48.6W
THU MORNING, 17.4N 51.5W THU EVENING, STRENGTHEN TO A HURRICANE
NEAR 18.2N 54.3W FRI MORNING, 19.0N 57.2W FRI EVENING, AND 19.9N
60.0W SAT MORNING. ERIN WILL CHANGE LITTLE IN INTENSITY AS IT
MOVES TO 21.7N 64.6W BY EARLY SUN. ELSEWHERE, A TROPICAL WAVE
OVER THE NORTHWEST CARIBBEAN ALONG 88W WILL BRING SHOWERS AND
THUNDERSTORMS TO THE YUCATAN PENINSULA AND ADJACENT WATERS TODAY
AS IT MOVES INLAND. THE THUNDERSTORMS MAY PRODUCE FREQUENT
LIGHTNING, LOCALLY HEAVY RAINFALL, GUSTY WINDS, AND ROUGH SEAS.
NW CARIBBEAN W OF 85W
THIS AFTERNOON
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
THU
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
SAT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
SUN
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
THIS AFTERNOON
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT S OF 18N,
AND 3 TO 4 FT ELSEWHERE.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT S OF 18N, AND
3 FT ELSEWHERE.
THU
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR
LESS ELSEWHERE.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT S OF 18N, AND
2 FT OR LESS ELSEWHERE.
FRI
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR
LESS ELSEWHERE.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT S OF 18N, AND
2 FT OR LESS ELSEWHERE.
SAT
E WINDS 10 TO 20 KT. SEAS 3 FT.
SAT NIGHT
NE WINDS LESS THAN 10 KT S OF 18N, AND NE 10 TO
20 KT ELSEWHERE. SEAS 3 FT IN THE EVENING, SUBSIDING TO 2 FT OR
LESS.
SUN
E WINDS LESS THAN 10 KT S OF 18N, AND E 10 TO 15 KT
ELSEWHERE. SEAS 2 FT OR LESS.
CARIBBEAN FROM 11N TO 15N W OF 72W
THIS AFTERNOON
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
TONIGHT
NE WINDS 20 TO 30 KT. SEAS 5 TO 7 FT.
THU
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
THU NIGHT
NE WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
SAT
WITHIN 90 NM OF COAST OF COLOMBIA, E WINDS 10 TO 15 KT,
DIMINISHING TO LESS THAN 10 KT IN THE AFTERNOON. ELSEWHERE, 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 LESS THAN 10 KT. SEAS 3 FT.
SW CARIBBEAN S OF 11N
THIS AFTERNOON
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TONIGHT
NE WINDS 15 TO 25 KT. SEAS 4 TO 6 FT.
THU
NE WINDS 15 TO 25 KT, SHIFTING TO SE 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 6 FT.
THU NIGHT
N WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
FRI NIGHT
NW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SAT
N WINDS 10 TO 15 KT, SHIFTING TO NW IN THE AFTERNOON.
SEAS 3 TO 4 FT.
SAT NIGHT
NW WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN
W WINDS LESS THAN 10 KT. SEAS 3 FT.
CARIBBEAN BETWEEN 64W AND 72W
THIS AFTERNOON
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
TONIGHT
NE WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 3 TO 5 FT.
THU
E WINDS 10 TO 20 KT. GULF OF VENEZUELA, SEAS 3 FT IN THE
MORNING, SUBSIDING TO 2 FT OR LESS. ELSEWHERE, SEAS 3 TO 5 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 2 FT OR LESS GULF OF VENEZUELA,
AND 3 TO 5 FT ELSEWHERE.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
SAT
N WINDS LESS THAN 10 KT GULF OF VENEZUELA, AND E 10 TO
20 KT ELSEWHERE. SEAS 2 FT OR LESS GULF OF VENEZUELA, AND 3 TO
4 FT ELSEWHERE.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS GULF OF
VENEZUELA, AND 3 TO 4 FT ELSEWHERE.
SUN
GULF OF VENEZUELA, SE WINDS LESS THAN 10 KT IN THE
MORNING, BECOMING VARIABLE WINDS LESS THAN 10 KT. ELSEWHERE, SE
WINDS 10 TO 15 KT. SEAS 2 FT OR LESS GULF OF VENEZUELA, AND 3 FT
ELSEWHERE.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
..HURRICANE WARNING
THIS AFTERNOON
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU NIGHT
TROPICAL STORM CONDITIONS POSSIBLE. NE WINDS 10 TO
15 KT. SEAS 4 TO 6 FT.
FRI
HURRICANE CONDITIONS POSSIBLE. NE WINDS 15 TO 25 KT,
BECOMING N 55 TO 65 KT IN THE AFTERNOON. SEAS 4 TO 6 FT.
FRI NIGHT
HURRICANE CONDITIONS POSSIBLE.
SAT
HURRICANE CONDITIONS POSSIBLE.
SAT NIGHT
HURRICANE CONDITIONS POSSIBLE.
SUN
TROPICAL STORM CONDITIONS POSSIBLE.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
THIS AFTERNOON
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
THU
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
S WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
SAT
S 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.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
TROPICAL STORM ERIN IS NEAR 16.3N 43.4W AT 11 AM
EDT, AND IS MOVING WEST AT 15 KT. MAXIMUM SUSTAINED WINDS ARE 40
KT WITH GUSTS TO 50 KT, AND THE MINIMUM CENTRAL PRESSURE IS 1004
MB. ERIN WILL MOVE TO 16.3N 45.6W THIS EVENING, 16.6N 48.6W THU
MORNING, 17.4N 51.5W THU EVENING, STRENGTHEN TO A HURRICANE NEAR
18.2N 54.3W FRI MORNING, 19.0N 57.2W FRI EVENING, AND 19.9N 60.0W
SAT MORNING. ERIN WILL CHANGE LITTLE IN INTENSITY AS IT MOVES TO
21.7N 64.6W BY EARLY SUN. ELSEWHERE, A WEAK PRESSURE GRADIENT
WILL RESULT IN GENTLE TO MODERATE WINDS AND MAINLY SLIGHT SEAS
THROUGH LATE WEEK.
ATLC WATERS FROM 27N TO 31N W OF 77W
THIS AFTERNOON
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
TONIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT.
THU
SW WINDS 10 TO 15 KT. SEAS 3 FT.
THU NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT.
FRI
SW WINDS 10 TO 15 KT. SEAS 3 FT.
FRI NIGHT
S WINDS 10 KT. SEAS 3 FT IN THE EVENING, SUBSIDING
TO 2 FT OR LESS.
SAT
SW WINDS 10 KT, SHIFTING TO NW IN THE AFTERNOON. SEAS
2 FT OR LESS.
SAT NIGHT
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
SUN
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 2 FT OR LESS.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
THIS AFTERNOON
W OF 70W, SW WINDS LESS THAN 10 KT. ELSEWHERE,
SW WINDS 10 TO 15 KT, SHIFTING TO SE IN THE AFTERNOON. SEAS 3 TO
4 FT.
TONIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
THU
S WINDS LESS THAN 10 KT. SEAS 3 FT.
THU NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI
S WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
SAT
SE WINDS LESS THAN 10 KT, SHIFTING TO NW IN THE
AFTERNOON. SEAS 3 FT.
SAT NIGHT
NW WINDS LESS THAN 10 KT W OF 70W, AND NE 10 TO
15 KT ELSEWHERE. SEAS 3 TO 5 FT.
SUN
TROPICAL STORM CONDITIONS POSSIBLE. W WINDS LESS THAN
10 KT W OF 70W, AND SE 10 TO 15 KT ELSEWHERE. SEAS 3 TO 4 FT W
OF 70W, AND 5 TO 7 FT ELSEWHERE.
BAHAMAS N OF 22N
THIS AFTERNOON
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
TONIGHT
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
THU
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
FRI
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
SAT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
SUN
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
THIS AFTERNOON
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TONIGHT
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 5 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
TROPICAL STORM CONDITIONS POSSIBLE.
SAT NIGHT
HURRICANE CONDITIONS POSSIBLE.
SUN
HURRICANE CONDITIONS POSSIBLE.
ATLC WATERS S OF 22N W OF 65W
THIS AFTERNOON
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU
E WINDS 10 TO 15 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
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
SAT
TROPICAL STORM CONDITIONS POSSIBLE.
SAT NIGHT
HURRICANE CONDITIONS POSSIBLE.
SUN
HURRICANE CONDITIONS POSSIBLE.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
..TROPICAL STORM WARNING
THIS AFTERNOON
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
THU NIGHT
TROPICAL STORM CONDITIONS POSSIBLE. NE WINDS 10 TO
20 KT. SEAS 5 TO 7 FT.
FRI
HURRICANE CONDITIONS POSSIBLE. NE WINDS 15 TO 25 KT,
INCREASING TO 40 TO 50 KT IN THE AFTERNOON. SEAS 7 TO 10 FT.
FRI NIGHT
HURRICANE CONDITIONS POSSIBLE.
SAT
HURRICANE CONDITIONS POSSIBLE.
SAT NIGHT
HURRICANE CONDITIONS POSSIBLE.
SUN
HURRICANE CONDITIONS POSSIBLE.
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