451
FZNT31 KNHC 150319
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1119 PM EDT SUN SEP 14 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
A TROPICAL WAVE ALONG 69W WILL MOVE INTO THE EASTERN
PART OF THE CENTRAL CARIBBEAN TONIGHT, THEN ACROSS THE THE
CENTRAL CARIBBEAN MON THROUGH TUE AND THROUGH THE WESTERN
CARIBBEAN TUE NIGHT THROUGH THU NIGHT. EXPECT FRESH WINDS OVER
THE CENTRAL CARIBBEAN MON THROUGH TUE IN THE WAKE OF THE
TROPICAL WAVE. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL
ACCOMPANY THE WAVE. ANOTHER TROPICAL WAVE IS EXPECTED TO ENTER
THE EASTERN CARIBBEAN TUE OR WED. FRESH TO STRONG WINDS WILL
PULSE IN THE S-CENTRAL WATERS THROUGH MID-WEEK. OTHERWISE,
GENTLE TO MODERATE TRADES, AND MOSTLY MODERATE SEAS WILL REMAIN
THROUGH THE WEEK, EXCEPT SLIGHT TO MODERATE SEAS IN THE NW
CARIBBEAN.
NW CARIBBEAN W OF 85W
OVERNIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS.
MON
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 2 FT OR LESS, BUILDING TO
3 TO 4 FT AFTER MIDNIGHT.
TUE
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
WED
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
WED NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
THU
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
FRI NIGHT
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 2 FT OR LESS.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
OVERNIGHT
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 3 FT.
MON
E WINDS 10 TO 15 KT S OF 18N, AND E LESS THAN 10 KT
ELSEWHERE. SEAS 3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
MON NIGHT
S OF 18N, E WINDS 10 TO 15 KT. ELSEWHERE, NE WINDS
LESS THAN 10 KT, INCREASING TO 10 TO 15 KT AFTER MIDNIGHT. SEAS
3 TO 5 FT S OF 18N, AND 2 FT OR LESS ELSEWHERE.
TUE
E WINDS 10 TO 15 KT. S OF 18N, SEAS 4 TO 6 FT. ELSEWHERE,
SEAS 2 FT OR LESS, BUILDING TO 3 TO 4 FT IN THE AFTERNOON.
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.
WED NIGHT
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
THU
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI
SE WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 2 FT OR LESS.
CARIBBEAN FROM 11N TO 15N W OF 72W
OVERNIGHT
NE WINDS 15 TO 20 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 15 KT ELSEWHERE. 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. SEAS 4 TO 6 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
THU
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
THU NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
S WINDS LESS THAN 10 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT.
SW CARIBBEAN S OF 11N
OVERNIGHT
N WINDS LESS THAN 10 KT. SEAS 3 FT.
MON
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TUE
N WINDS LESS THAN 10 KT, SHIFTING TO SW IN THE AFTERNOON.
SEAS 3 TO 4 FT.
TUE NIGHT
W WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
WED
W WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
WED NIGHT
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU
SW WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU NIGHT
SW WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI
SW WINDS LESS THAN 10 KT. SEAS 3 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 FT IN THE
EVENING, SUBSIDING TO 2 FT OR LESS.
CARIBBEAN BETWEEN 64W AND 72W
OVERNIGHT
NE WINDS 15 TO 20 KT GULF OF VENEZUELA, AND E 10 TO
15 KT ELSEWHERE. SEAS 3 TO 5 FT.
MON
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 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 4 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
OVERNIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
NE TO E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
OVERNIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON
E 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 3 TO 5 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.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A TROUGH EXTENDS FROM A 1009 MB LOW THAT IS N OF THE
AREA NEAR 33N34W, SOUTH-SOUTHWEST TO 31N74W, TO THE NORTHERN
BAHAMAS AND TO NEAR 24N80W. AN AREA OF SCATTERED TO NUMEROUS
SHOWERS AND THUNDERSTORMS IS TO THE E OF THE TROUGH FROM 24N TO
31N BETWEEN 63W AND 61W, AND ALSO FROM 25N TO 29N BETWEEN 55W
AND 59W. THE TROUGH WILL WEAKEN THROUGH MON, BUT AS THE LOW N OF
THE AREA LIFTS NORTHWARD DURING THE WEEK, INDICATIONS ARE THAT
IT WILL ALLOW FOR THE REMNANTS OF THE TROUGH TO SLOWLY LIFT BACK
TO THE N PROVIDING FOR ADDITIONAL SHOWER AND THUNDERSTORM
ACTIVITY OVER SOME OF THE ZONES IN THE WESTERN HALF OF THE
REGION. OTHERWISE, ATLANTIC HIGH PRESSURE WILL GENERALLY MAINTAIN
MODERATE WINDS AND SEAS ELSEWHERE ACROSS THE REGION THROUGH THE
WEEK. LOOKING AHEAD, A TROPICAL WAVE OVER THE EASTERN TROPICAL
ATLANTIC IS LIKELY TO DEVELOP INTO A TROPICAL DEPRESSION DURING
THE MIDDLE TO LATTER PART OF THIS WEEK AS THE SYSTEM MOVES WEST-
NORTHWESTWARD OVER THE CENTRAL TROPICAL ATLANTIC. REGARDLESS OF
DEVELOPMENT, EXPECT INCREASING WINDS AND BUILDING SEAS OVER THE
SOUTHEASTERN WATERS BY THE END OF THE WEEK.
ATLC WATERS FROM 27N TO 31N W OF 77W
OVERNIGHT
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
MON
N WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
MON NIGHT
NE WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
TUE
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
TUE NIGHT
NE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
WED
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
WED NIGHT
E WINDS 10 KT. SEAS 3 TO 4 FT.
THU
E WINDS 10 KT. SEAS 3 TO 4 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
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
OVERNIGHT
SW WINDS LESS THAN 10 KT W OF 70W, AND S 10 TO
15 KT ELSEWHERE. SEAS 4 TO 6 FT.
MON
W WINDS LESS THAN 10 KT W OF 70W, AND SW 10 TO 15 KT
ELSEWHERE. SEAS 4 TO 6 FT.
MON NIGHT
S WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
TUE
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
TUE NIGHT
VARIABLE WINDS LESS THAN 10 KT, BECOMING E LESS
THAN 10 KT AFTER MIDNIGHT. SEAS 4 TO 5 FT.
WED
VARIABLE WINDS LESS THAN 10 KT, BECOMING E LESS THAN
10 KT IN THE AFTERNOON. SEAS 3 TO 4 FT.
WED NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
THU
E WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
THU NIGHT
SE WINDS 10 KT. SEAS 4 TO 5 FT.
FRI
SE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
BAHAMAS N OF 22N
OVERNIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON
VARIABLE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON NIGHT
NE TO E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
WED
E WINDS 10 TO 15 KT. SEAS 3 FT.
WED NIGHT
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
SE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
OVERNIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
TUE
E WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
FRI
SE WINDS 10 TO 15 KT. SEAS 5 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 4 TO 5 FT.
ATLC WATERS S OF 22N W OF 65W
OVERNIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
MON
E 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 3 TO 5 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
WED
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
OVERNIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
MON
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 6 FT.
WED
E WINDS 10 TO 15 KT. SEAS 6 FT.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
THU
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
FRI NIGHT
NE WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
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