966
FZNT31 KNHC 200346
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1146 PM EDT WED MAR 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
BUILDING RIDGE NORTH OF THE AREA WILL SUSTAIN FRESH
TO STRONG EASTERLY TRADE WINDS OVER THE CENTRAL CARIBBEAN
THROUGH THE FORECAST PERIOD. THE RESULTANT PRESSURE GRADIENT
BETWEEN THE AFOREMENTIONED RIDGE AND LOWER PRESSURE OVER
COLOMBIA WILL LEAD TO THE DEVELOPMENT OF NEAR GALE-FORCE WINDS
ACROSS THE SOUTH- CENTRAL WATERS FRI NIGHT THROUGH MON NIGHT,
WITH PULSING GALES AT NIGHT OFFSHORE COLOMBIA FRI THROUGH SUN.
ROUGH TO VERY ROUGH SEAS ARE EXPECTED WITH THE STRONGEST WINDS
FRI NIGHT THROUGH THE MIDDLE OF NEXT WEEK. FRESH TO OCCASIONALLY
STRONG NE WINDS IN THE WINDWARD PASSAGE AND THE LEE OF CUBA WILL
DIMINISH THU MORNING. LOOKING AHEAD, THE TAIL OF A COLD FRONT
WILL ENTER THE NW CARIBBEAN EARLY FRI AND DISSIPATE FRI EVENING.
THE AFOREMENTIONED BUILDING HIGH PRESSURE WILL RESULT IN FRESH
TO STRONG NE WINDS RESUMING IN THE WINDWARD PASSAGE AND THE LEE
OF CUBA FRI EVENING THROUGH SUN NIGHT, AND EAST WINDS OF THE
SAME SPEED AT NIGHT IN THE GULF OF HONDURAS SUN AND MON.
NW CARIBBEAN W OF 85W
OVERNIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
THU
E WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
THU NIGHT
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
MON
SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
OVERNIGHT
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
S OF 18N, NE WINDS 10 TO 15 KT. ELSEWHERE, NE WINDS
LESS THAN 10 KT, SHIFTING TO N AFTER MIDNIGHT. SEAS 3 TO 5 FT S
OF 18N, AND 2 FT OR LESS ELSEWHERE.
FRI
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
FRI NIGHT
NE WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
MON
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
..GALE WARNING
..GALE CONDITIONS POSSIBLE AT NIGHT SAT AND SUN
OVERNIGHT
NE WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 15 KT ELSEWHERE. SEAS 4 TO 6 FT.
THU
E WINDS 15 TO 20 KT WITHIN 90 NM OF COAST OF COLOMBIA,
AND NE 10 TO 15 KT ELSEWHERE. SEAS 5 TO 7 FT.
THU NIGHT
NE WINDS 15 TO 25 KT WITHIN 90 NM OF COAST OF
COLOMBIA, AND NE 10 TO 20 KT ELSEWHERE. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 25 TO 35 KT. SEAS 6 TO 9 FT.
SAT
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
SAT NIGHT
NE WINDS 25 TO 35 KT. SEAS 8 TO 11 FT.
SUN
E WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
SUN NIGHT
E WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
MON
E WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
MON NIGHT
E WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
SW CARIBBEAN S OF 11N
OVERNIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
THU
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
N WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SAT
NE WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
SAT NIGHT
NE WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
SUN
NE WINDS 15 TO 25 KT. SEAS 8 TO 11 FT.
SUN NIGHT
NE WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
MON
NE WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
CARIBBEAN BETWEEN 64W AND 72W
OVERNIGHT
NE WINDS 15 TO 20 KT GULF OF VENEZUELA, AND NE
10 TO 15 KT ELSEWHERE. SEAS 3 TO 5 FT.
THU
E WINDS 10 TO 20 KT GULF OF VENEZUELA, AND E 10 TO 15 KT
ELSEWHERE. SEAS 3 TO 4 FT GULF OF VENEZUELA, AND 4 TO 6 FT
ELSEWHERE.
THU NIGHT
E WINDS 10 TO 20 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 5 TO 7 FT.
SAT
E WINDS 15 TO 25 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 15 TO 25 KT. SEAS 6 TO 8 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
OVERNIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
THU
SE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
THU NIGHT
E WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
FRI
SE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
FRI NIGHT
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 5 TO 7 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
MON
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
OVERNIGHT
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
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
FRI NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SAT NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
A RECENT ASCAT PASS SHOWED STRONG TO GALE-FORCE
CYCLONIC WINDS COVERING MUCH OF THE SW NORTH ATLANTIC IN
ASSOCIATION WITH COMPLEX LOW PRESSURE SYSTEM LOCATED NEAR
BERMUDA. THESE WINDS ARE ALSO PRODUCING ROUGH TO VERY ROUGH SEAS
IN THE AREA DESCRIBED. WINDS AND SEAS WILL START TO DIMINISH AS
THE BROAD NON-TROPICAL SYSTEM MOVES E AND THEN LIFT N OF THE
AREA THU EVENING. FRESH TO STRONG SOUTHERLY WINDS WILL DEVELOP
OVER THE NE FLORIDA OFFSHORE WATERS ON THU AFTERNOON AHEAD OF A
STRONG COLD FRONT FORECAST TO ENTER THE NW OFFSHORE WATERS THU
EVENING. STRONG TO NEAR GALE- FORCE NW WINDS AND ROUGH TO VERY
ROUGH SEAS WILL FOLLOW THIS FRONT, WHICH IS FORECAST TO REACH
FROM 31N71W TO ANDROS ISLAND AND W CUBA FRI MORNING, AND FROM
31N57W TO THE SOUTHERN BAHAMAS SAT MORNING WHERE IT STALL BEFORE
DISSIPATING LATE SAT. HIGH PRESSURE WILL BUILD NE TO E OF THE
BAHAMAS IN THE WAKE OF THE FRONT THE REMAINDER WEEKEND. LOOKING
AHEAD, A WEAK COLD FRONT MAY ENTER THE NW OFFSHORE WATERS MON
NIGHT.
ATLC WATERS FROM 27N TO 31N W OF 77W
OVERNIGHT
NW WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
THU
SW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
THU NIGHT
W WINDS 20 TO 30 KT. SEAS 6 TO 7 FT, BUILDING TO
7 TO 10 FT AFTER MIDNIGHT.
FRI
NW WINDS 20 TO 25 KT, DIMINISHING TO 10 TO 20 KT IN THE
AFTERNOON. SEAS 8 TO 11 FT.
FRI NIGHT
N WINDS 10 TO 15 KT IN THE EVENING, BECOMING
VARIABLE WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
SAT
VARIABLE WINDS LESS THAN 10 KT, BECOMING SW LESS THAN
10 KT IN THE AFTERNOON. SEAS 3 TO 5 FT.
SAT NIGHT
S WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN
SE WINDS LESS THAN 10 KT. SEAS 3 FT.
SUN NIGHT
SE WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
MON
S WINDS 10 TO 20 KT. SEAS 3 TO 4 FT.
MON NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
OVERNIGHT
NW WINDS 15 TO 25 KT. SEAS 11 TO 16 FT.
THU
W OF 70W, NW WINDS 10 TO 20 KT. ELSEWHERE, NW WINDS 15 TO
25 KT, DIMINISHING TO 10 TO 15 KT IN THE AFTERNOON. SEAS 9 TO
14 FT, SUBSIDING TO 8 TO 11 FT IN THE AFTERNOON.
THU NIGHT
W OF 70W, W WINDS 10 TO 15 KT, SHIFTING TO SW 15 TO
25 KT AFTER MIDNIGHT. ELSEWHERE, NW WINDS 10 TO 15 KT. SEAS 7 TO
10 FT.
FRI
W OF 70W, W WINDS 15 TO 25 KT. ELSEWHERE, W WINDS 10 TO
15 KT, SHIFTING TO SW 15 TO 25 KT IN THE AFTERNOON. SEAS 8 TO
13 FT W OF 70W, AND 6 TO 8 FT ELSEWHERE.
FRI NIGHT
NW WINDS 15 TO 25 KT. SEAS 8 TO 13 FT.
SAT
N WINDS 10 TO 15 KT, SHIFTING TO S IN THE AFTERNOON. SEAS
7 TO 10 FT.
SAT NIGHT
W WINDS LESS THAN 10 KT. SEAS 6 TO 9 FT.
SUN
N WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SUN NIGHT
SE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
MON
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
BAHAMAS N OF 22N
OVERNIGHT
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
THU
N WINDS LESS THAN 10 KT IN THE MORNING, BECOMING VARIABLE
WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
THU NIGHT
W WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
FRI
NW WINDS 10 TO 20 KT. SEAS 3 TO 5 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT NIGHT
E WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN
E WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT.
MON
SE WINDS 10 TO 15 KT. SEAS 3 FT.
MON NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
OVERNIGHT
NW WINDS 10 TO 20 KT W OF 70W, AND NW 15 TO 25 KT
ELSEWHERE. SEAS 13 TO 18 FT.
THU
NW WINDS 10 TO 20 KT W OF 70W, AND W 15 TO 25 KT
ELSEWHERE. W OF 70W, SEAS 9 TO 14 FT. ELSEWHERE, SEAS 13 TO
16 FT, SUBSIDING TO 11 TO 13 FT IN THE AFTERNOON.
THU NIGHT
W WINDS 10 TO 15 KT. SEAS 8 TO 11 FT.
FRI
W WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
FRI NIGHT
NW WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
SAT
NE WINDS 10 TO 15 KT, SHIFTING TO E IN THE AFTERNOON.
SEAS 6 TO 8 FT.
SAT NIGHT
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SUN
E WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
SUN NIGHT
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
SE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
ATLC WATERS S OF 22N W OF 65W
OVERNIGHT
NW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
THU
NW WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 6 TO 9 FT.
THU NIGHT
NW WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
FRI
VARIABLE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
FRI NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
OVERNIGHT
SW WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
THU
SW WINDS 10 TO 15 KT. SEAS 7 TO 10 FT.
THU NIGHT
SW WINDS 10 TO 15 KT, SHIFTING TO W AFTER MIDNIGHT.
SEAS 8 TO 11 FT.
FRI
SW WINDS LESS THAN 10 KT. SEAS 7 TO 9 FT.
FRI NIGHT
VARIABLE WINDS LESS THAN 10 KT. SEAS 6 TO 8 FT.
SAT
E WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
MON
E WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
MON NIGHT
E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT.
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