731
FZNT31 KNHC 191504
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1104 AM EDT TUE AUG 19 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 N OF AREA NEAR 25.6N 72.4W AT
11 AM EDT, AND IS MOVING NORTHWEST AT 8 KT. MAXIMUM SUSTAINED
WINDS ARE 90 KT WITH GUSTS TO 110 KT, AND THE MINIMUM CENTRAL
PRESSURE IS 961 MB. MODERATE TO FRESH SE WINDS OVER THE CENTRAL
AND EASTERN CARIBBEAN WILL BECOME EASTERLY BY THIS EVENING AS
ERIN CONTINUES TO LIFT NORTHWARD AWAY FROM THE REGION. MODERATE
TO FRESH TRADE WINDS AND MODERATE SEAS ARE THEN EXPECTED TONIGHT
THROUGH THE WEEKEND, INCREASING TO STRONG SPEEDS OVER THE SOUTH-
CENTRAL CARIBBEAN WED EVENING THROUGH SAT AS HIGH PRESSURE
BUILDS IN THE WAKE OF ERIN. A TROPICAL WAVE LOCATED OVER THE
CENTRAL TROPICAL ATLANTIC CONTINUES TO PRODUCE A BROAD AREA OF
DISORGANIZED SHOWERS AND THUNDERSTORMS. ENVIRONMENTAL CONDITIONS
APPEAR CONDUCIVE FOR GRADUAL DEVELOPMENT OF THIS SYSTEM, AND A
TROPICAL DEPRESSION COULD FORM TOWARD THE END OF THE WEEK OR
THIS WEEKEND. THIS SYSTEM SHOULD MOVE WESTWARD TO WEST-NORTHWESTWARD
AT ABOUT 20 MPH AND APPROACH THE VICINITY OF THE LEEWARD ISLANDS
ON FRIDAY.
NW CARIBBEAN W OF 85W
TODAY
NE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
WED
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
THU
SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 2 FT OR LESS.
FRI
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TODAY
S OF 18N, SE WINDS LESS THAN 10 KT, INCREASING TO 10 TO
15 KT IN THE AFTERNOON. ELSEWHERE, NW WINDS 10 TO 20 KT. SEAS
2 FT OR LESS.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 2 FT OR LESS.
WED
SE WINDS 10 TO 20 KT. SEAS 2 FT OR LESS.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT S OF 18N, AND
2 FT OR LESS 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 4 TO 6 FT S OF 18N, AND
2 FT OR LESS ELSEWHERE.
SAT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TODAY
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 2 FT OR LESS, BUILDING TO
3 FT AFTER MIDNIGHT.
WED
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
WED NIGHT
NE WINDS 15 TO 25 KT. SEAS 6 TO 8 FT WITHIN 90 NM
OF COAST OF COLOMBIA, AND 3 TO 5 FT ELSEWHERE.
THU
E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT WITHIN 90 NM OF COAST
OF COLOMBIA, AND 4 TO 6 FT ELSEWHERE.
THU NIGHT
E WINDS 15 TO 25 KT. SEAS 4 TO 6 FT.
FRI
E 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 3 TO 5 FT.
SW CARIBBEAN S OF 11N
TODAY
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
WED
NE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
WED NIGHT
N WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO
3 FT AFTER MIDNIGHT.
THU
NW WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
SW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
SE WINDS 10 TO 20 KT. SEAS 2 FT OR LESS GULF OF
VENEZUELA, AND 3 TO 4 FT ELSEWHERE.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
WED
E WINDS 10 TO 20 KT GULF OF VENEZUELA, AND E 15 TO 25 KT
ELSEWHERE. SEAS 3 TO 5 FT.
WED NIGHT
E WINDS 20 TO 30 KT GULF OF VENEZUELA, AND E 15 TO
25 KT ELSEWHERE. SEAS 4 TO 6 FT.
THU
E WINDS 15 TO 25 KT. SEAS 4 TO 6 FT.
THU NIGHT
NE WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 15 TO
25 KT ELSEWHERE. SEAS 4 TO 6 FT.
FRI
NE WINDS 15 TO 25 KT GULF OF VENEZUELA, AND E 10 TO 20 KT
ELSEWHERE. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
SAT
SE WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
TODAY
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
WED
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU NIGHT
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
SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT
SE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TODAY
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
WED
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
THU
E 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 3 TO 5 FT.
FRI NIGHT
SE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
HURRICANE ERIN IS NEAR 25.6N 72.4W AT 11 AM EDT, AND
IS MOVING NORTHWEST AT 8 KT. MAXIMUM SUSTAINED WINDS ARE 90 KT
WITH GUSTS TO 110 KT, AND THE MINIMUM CENTRAL PRESSURE IS
961 MB. ERIN WILL MOVE TO 27.0N 73.1W THIS EVENING, 29.1N 73.9W
WED MORNING, 31.4N 73.6W WED EVENING, 33.7N 72.4W THU MORNING,
35.6N 70.0W THU EVENING, AND 37.3N 66.6W FRI MORNING. ERIN WILL
CHANGE LITTLE IN INTENSITY AS IT MOVES TO NEAR 40.3N 58.7W EARLY
SAT. SWELLS GENERATED BY ERIN WILL AFFECT THE BAHAMAS, BERMUDA,
THE EAST COAST OF THE UNITED STATES, AND ATLANTIC CANADA DURING
THE NEXT SEVERAL DAYS. THESE ROUGH OCEAN CONDITIONS ARE EXPECTED
TO CAUSE LIFE-THREATENING SURF AND RIP CURRENTS. OTHERWISE, A
TROPICAL WAVE LOCATED OVER THE CENTRAL TROPICAL ATLANTIC
CONTINUES TO PRODUCE A BROAD AREA OF DISORGANIZED SHOWERS AND
THUNDERSTORMS. ENVIRONMENTAL CONDITIONS APPEAR CONDUCIVE FOR
GRADUAL DEVELOPMENT OF THIS SYSTEM, AND A TROPICAL DEPRESSION
COULD FORM TOWARD THE END OF THE WEEK OR THIS WEEKEND. THIS
SYSTEM SHOULD MOVE WESTWARD TO WEST-NORTHWESTWARD AT ABOUT 20 MPH
AND APPROACH THE VICINITY OF THE LEEWARD ISLANDS ON FRIDAY.
ATLC WATERS FROM 27N TO 31N W OF 77W
TODAY
NE WINDS 10 TO 20 KT. SEAS 9 TO 14 FT.
TONIGHT
N WINDS 20 TO 30 KT. SEAS 10 TO 15 FT.
WED
N WINDS 20 TO 30 KT. SEAS 13 TO 18 FT.
WED NIGHT
NW WINDS 20 TO 30 KT. SEAS 11 TO 16 FT.
THU
NW WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
THU NIGHT
W WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 7 TO 10 FT.
FRI
NW WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
SAT
S WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
..HURRICANE WARNING
TODAY
TROPICAL STORM CONDITIONS. W OF 70W, E WINDS 35 TO
45 KT, INCREASING TO 50 TO 60 KT IN THE AFTERNOON. ELSEWHERE, SE
WINDS 30 TO 40 KT. SEAS 16 TO 21 FT W OF 70W, AND 10 TO 15 FT
ELSEWHERE.
TONIGHT
HURRICANE CONDITIONS EXPECTED. E WINDS 80 TO 90 KT W
OF 70W, AND SE 30 TO 40 KT ELSEWHERE. SEAS 20 TO 30 FT W OF 70W,
AND 11 TO 16 FT ELSEWHERE.
WED
HURRICANE CONDITIONS EXPECTED. W OF 70W, SE WINDS 80 TO
90 KT, SHIFTING TO SW IN THE AFTERNOON. ELSEWHERE, S WINDS 25 TO
35 KT. SEAS 21 TO 31 FT W OF 70W, AND 11 TO 16 FT ELSEWHERE.
WED NIGHT
HURRICANE CONDITIONS EXPECTED. W OF 70W, SW WINDS
80 TO 90 KT, DIMINISHING TO 55 TO 65 KT AFTER MIDNIGHT,SEAS
17 TO 27 FT, SUBSIDING TO 16 TO 21 FT AFTER MIDNIGHT. ELSEWHERE,
S WINDS 30 TO 40 KT, SEAS 10 TO 15 FT.
THU
TROPICAL STORM CONDITIONS POSSIBLE. W OF 70W, W WINDS
35 TO 45 KT, DIMINISHING TO 25 TO 35 KT IN THE AFTERNOON,SEAS
14 TO 19 FT, SUBSIDING TO 11 TO 16 FT IN THE AFTERNOON.
ELSEWHERE, S WINDS 30 TO 40 KT, SEAS 11 TO 16 FT.
THU NIGHT
SW WINDS 20 TO 30 KT. SEAS 10 TO 15 FT.
FRI
W WINDS 10 TO 20 KT W OF 70W, AND SW 20 TO 30 KT
ELSEWHERE. SEAS 8 TO 13 FT W OF 70W, AND 10 TO 15 FT ELSEWHERE.
FRI NIGHT
W OF 70W, NW WINDS 10 TO 15 KT, SHIFTING TO N AFTER
MIDNIGHT. ELSEWHERE, W WINDS 15 TO 25 KT. SEAS 8 TO 12 FT W OF
70W, AND 10 TO 14 FT ELSEWHERE.
SAT
S WINDS LESS THAN 10 KT W OF 70W, AND S 10 TO 15 KT
ELSEWHERE. SEAS 8 TO 12 FT W OF 70W, AND 10 TO 14 FT ELSEWHERE.
BAHAMAS N OF 22N
TODAY
TROPICAL STORM CONDITIONS POSSIBLE. NW WINDS 20 TO
30 KT. SEAS 7 TO 10 FT.
TONIGHT
W WINDS 20 TO 30 KT. SEAS 6 TO 9 FT.
WED
W WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
WED NIGHT
SW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
THU
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI
SW WINDS 10 TO 15 KT, SHIFTING TO NW IN THE AFTERNOON.
SEAS 3 TO 4 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
..HURRICANE WARNING
TODAY
HURRICANE CONDITIONS. SW WINDS 80 TO 90 KT W OF 70W,
AND S 35 TO 45 KT ELSEWHERE. SEAS 17 TO 27 FT W OF 70W, AND
11 TO 16 FT ELSEWHERE.
TONIGHT
HURRICANE CONDITIONS EXPECTED. W OF 70W, SW WINDS
80 TO 90 KT, DIMINISHING TO 65 TO 75 KT AFTER MIDNIGHT,SEAS
16 TO 21 FT, SUBSIDING TO 12 TO 17 FT AFTER MIDNIGHT. ELSEWHERE,
S WINDS 30 TO 40 KT, SEAS 9 TO 14 FT.
WED
TROPICAL STORM CONDITIONS EXPECTED. W OF 70W, SW WINDS
40 TO 50 KT, DIMINISHING TO 25 TO 35 KT IN THE AFTERNOON.
ELSEWHERE, S WINDS 20 TO 30 KT. SEAS 9 TO 14 FT W OF 70W, AND
7 TO 10 FT ELSEWHERE.
WED NIGHT
W OF 70W, SW WINDS 20 TO 30 KT. ELSEWHERE, S WINDS
20 TO 30 KT, DIMINISHING TO 10 TO 20 KT AFTER MIDNIGHT. SEAS
7 TO 10 FT.
THU
S WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
THU NIGHT
S WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
FRI
S WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
FRI NIGHT
S WINDS LESS THAN 10 KT W OF 70W, AND E 10 TO 15 KT
ELSEWHERE. SEAS 6 TO 9 FT.
SAT
SE WINDS LESS THAN 10 KT W OF 70W, AND E 10 TO 15 KT
ELSEWHERE. SEAS 7 TO 10 FT.
ATLC WATERS S OF 22N W OF 65W
TODAY
S WINDS 20 TO 30 KT. SEAS 6 TO 9 FT.
TONIGHT
S WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
WED
S WINDS 10 TO 20 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
E WINDS 10 TO 20 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 4 TO 6 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
SE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
WED
E WINDS 10 TO 20 KT. SEAS 5 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
THU
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
FRI NIGHT
SE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
SAT
SE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
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