981
FZNT31 KNHC 190919
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
519 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 NEAR 24.8N 72.0W AT 5 AM EDT, AND
IS MOVING NORTHWEST AT 6 KT. MAXIMUM SUSTAINED WINDS ARE 100 KT
WITH GUSTS TO 120 KT, AND THE MINIMUM CENTRAL PRESSURE IS
955 MB. ERIN WILL MOVE TO 26.1N 72.7W THIS AFTERNOON, 28.1N
73.5W WED MORNING, 30.3N 74.0W WED AFTERNOON, AND CONTINUE
NORTHWARD AWAY FROM THE CARIBBEAN THROUGH THE WEEKEND. OUTER
BANDS OF ERIN WILL PRODUCE LOCALIZED AREAS OF HEAVY RAINFALL
ACROSS PORTIONS OF THE NE, NORTH-CENTRAL AND NW CARIBBEAN
THROUGH TONIGHT. 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 BASIN WED EVENING THROUGH SAT AS HIGH PRESSURE
BUILDS IN THE WAKE OF ERIN.
NW CARIBBEAN W OF 85W
TODAY
E WINDS LESS THAN 10 KT IN THE MORNING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
TONIGHT
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
WED
SE WINDS LESS THAN 10 KT IN THE MORNING, BECOMING
VARIABLE 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 15 KT. SEAS 2 FT OR LESS.
FRI
SE WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO 3 FT
IN THE AFTERNOON.
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
S OF 18N, E WINDS LESS THAN 10 KT, INCREASING TO
10 TO 15 KT AFTER MIDNIGHT. ELSEWHERE, SW WINDS 10 TO 15 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 4 TO 6 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 3 TO 5 FT WITHIN 90 NM OF
COAST OF COLOMBIA, AND 2 FT OR LESS ELSEWHERE.
WED
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
WED NIGHT
NE WINDS 15 TO 25 KT. SEAS 5 TO 7 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 15 KT. SEAS 3 TO 4 FT.
THU NIGHT
NW WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT.
FRI
SW WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
FRI NIGHT
W WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
GULF OF VENEZUELA, E WINDS 10 TO 15 KT, DIMINISHING TO
LESS THAN 10 KT IN THE AFTERNOON. ELSEWHERE, 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 5 FT.
WED
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
WED NIGHT
E WINDS 15 TO 25 KT. 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 10 TO
20 KT ELSEWHERE. 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 2 FT OR LESS GULF OF
VENEZUELA, AND 3 TO 5 FT ELSEWHERE.
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 15 KT. SEAS 3 TO 5 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 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 5 TO 7 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 4 FT.
TONIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
WED
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED NIGHT
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
THU
E WINDS 10 TO 15 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 24.8N 72.0W AT 5 AM EDT, AND
IS MOVING NORTHWEST AT 6 KT. MAXIMUM SUSTAINED WINDS ARE 100 KT
WITH GUSTS TO 120 KT, AND THE MINIMUM CENTRAL PRESSURE IS
955 MB. ERIN WILL MOVE TO 26.1N 72.7W THIS AFTERNOON, 28.1N
73.5W WED MORNING, 30.3N 74.0W WED AFTERNOON, 32.6N 73.4W THU
MORNING, 34.6N 71.4W THU AFTERNOON, AND 36.5N 68.4W FRI MORNING.
ERIN WILL CHANGE LITTLE IN INTENSITY AS IT MOVES NEAR 39.5N 61.0W
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 WEEKEND. THIS
SYSTEM SHOULD MOVE WESTWARD TO WEST-NORTHWESTWARD AT ABOUT 20 KT
ACROSS THE CENTRAL TROPICAL ATLANTIC 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 10 TO 15 FT.
TONIGHT
NE WINDS 20 TO 30 KT. SEAS 13 TO 18 FT.
WED
TROPICAL STORM CONDITIONS POSSIBLE. N WINDS 20 TO 30 KT.
SEAS 16 TO 21 FT.
WED NIGHT
TROPICAL STORM CONDITIONS POSSIBLE. NW WINDS 20 TO
30 KT. SEAS 15 TO 20 FT, SUBSIDING TO 12 TO 17 FT AFTER
MIDNIGHT.
THU
NW WINDS 15 TO 25 KT. SEAS 9 TO 14 FT.
THU NIGHT
W WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 8 TO 11 FT.
FRI
NW WINDS LESS THAN 10 KT. SEAS 7 TO 10 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 7 TO 9 FT.
SAT
S WINDS LESS THAN 10 KT. SEAS 7 TO 9 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 55 TO 65 KT IN THE AFTERNOON,SEAS 17 TO
22 FT, BUILDING TO 18 TO 28 FT IN THE AFTERNOON. ELSEWHERE, SE
WINDS 30 TO 40 KT, SEAS 13 TO 18 FT.
TONIGHT
HURRICANE CONDITIONS EXPECTED. E WINDS 85 TO 95 KT W
OF 70W, AND SE 30 TO 40 KT ELSEWHERE. SEAS 24 TO 34 FT W OF 70W,
AND 13 TO 18 FT ELSEWHERE.
WED
HURRICANE CONDITIONS EXPECTED. W OF 70W, SE WINDS 85 TO
95 KT, SHIFTING TO SW 90 TO 100 KT IN THE AFTERNOON. ELSEWHERE,
S WINDS 25 TO 35 KT. SEAS 27 TO 37 FT W OF 70W, AND 13 TO 18 FT
ELSEWHERE.
WED NIGHT
HURRICANE CONDITIONS EXPECTED. W OF 70W, SW WINDS
80 TO 100 KT, DIMINISHING TO 55 TO 65 KT AFTER MIDNIGHT,SEAS
23 TO 33 FT, SUBSIDING TO 17 TO 27 FT AFTER MIDNIGHT. ELSEWHERE,
S WINDS 30 TO 40 KT, SEAS 12 TO 17 FT.
THU
TROPICAL STORM CONDITIONS POSSIBLE. W WINDS 35 TO 45 KT
W OF 70W, AND S 30 TO 40 KT ELSEWHERE. SEAS 13 TO 18 FT W OF
70W, AND 11 TO 16 FT ELSEWHERE.
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 10 TO 15 FT.
FRI NIGHT
W OF 70W, NW WINDS 10 TO 15 KT, SHIFTING TO N AFTER
MIDNIGHT. ELSEWHERE, W WINDS 15 TO 25 KT. SEAS 9 TO 12 FT W OF
70W, AND 10 TO 15 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
..TROPICAL STORM WARNING
TODAY
TROPICAL STORM CONDITIONS POSSIBLE. NW WINDS 25 TO
35 KT. SEAS 8 TO 11 FT.
TONIGHT
W WINDS 20 TO 30 KT. SEAS 8 TO 11 FT.
WED
W WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
WED NIGHT
SW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
THU
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI
SW WINDS 10 TO 15 KT, SHIFTING TO NW IN THE AFTERNOON.
SEAS 3 TO 5 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. W OF 70W, NE WINDS 85 TO 95 KT,
SHIFTING TO SW IN THE AFTERNOON. ELSEWHERE, S WINDS 35 TO 45 KT.
SEAS 24 TO 34 FT W OF 70W, AND 14 TO 19 FT ELSEWHERE.
TONIGHT
HURRICANE CONDITIONS EXPECTED. W OF 70W, SW WINDS
85 TO 95 KT, DIMINISHING TO 60 TO 70 KT AFTER MIDNIGHT,SEAS
19 TO 29 FT, SUBSIDING TO 17 TO 22 FT AFTER MIDNIGHT. ELSEWHERE,
S WINDS 30 TO 40 KT, SEAS 11 TO 16 FT.
WED
TROPICAL STORM CONDITIONS EXPECTED. W OF 70W, SW 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 20 TO 30 KT, SEAS 8 TO 13 FT.
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
9 TO 14 FT W OF 70W, AND 7 TO 10 FT ELSEWHERE.
THU
S WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
THU NIGHT
S WINDS 10 TO 20 KT. SEAS 6 TO 9 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 7 TO 10 FT.
TONIGHT
S WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
WED
S WINDS 10 TO 20 KT. SEAS 5 TO 7 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 5 TO 6 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
WED
E WINDS 10 TO 20 KT. SEAS 6 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 8 FT.
FRI NIGHT
SE WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT
SE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page