443
FZNT31 KNHC 201521
OFFN20
MARINE WEATHER HF VOICE BROADCAST
NWS NATIONAL HURRICANE CENTER MIAMI, FL
1021 AM EST FRI DEC 20 2024
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
FRESH E TO NE WINDS WILL PREVAIL ACROSS THE SOUTH-
CENTRAL THROUGH EASTERN CARIBBEAN, AS WELL AS THROUGH THE
ATLANTIC PASSAGES THROUGH MIDDAY AS A STRONG PRESSURE GRADIENT
PREVAILS BETWEEN THE COLOMBIAN LOW AND HIGH PRESSURE IN THE
CENTRAL ATLANTIC. MODERATE TO LOCALLY FRESH NE TO E WINDS WILL
DOMINATE THE BASIN THIS WEEKEND AS A NEW RIDGE BUILDS OVER THE
CARIBBEAN FROM THE NW. LOOKING AHEAD, HIGH PRESSURE WILL SLIDE
SLOWLY EASTWARD ACROSS THE WEST AND THEN CENTRAL ATLANTIC EARLY
NEXT WEEK WHILE A SERIES OF COLD FRONT WILL MOVE OFF THE
SOUTHEASTERN UNITED STATES. A BUILDING PRESSURE GRADIENT BETWEEN
THESE FEATURES WILL LEAD TO FRESH TO LOCALLY STRONG NE TO E
WINDS ACROSS MUCH OF THE CARIBBEAN.
NW CARIBBEAN W OF 85W
TODAY
N WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.
TONIGHT
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
N WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 4 TO 5 FT.
MON NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TUE
NE WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN
10 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT.
CARIBBEAN N OF 15N BETWEEN 72W AND 85W
TODAY
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
SUN
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON
NE WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
MON NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
CARIBBEAN FROM 11N TO 15N W OF 72W
TODAY
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
SAT
NE WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SUN NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
MON
NE WINDS 10 TO 20 KT. SEAS 5 TO 6 FT.
MON NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
SW CARIBBEAN S OF 11N
TODAY
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TONIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
SAT
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SUN
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
SUN NIGHT
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
MON
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
MON NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
TUE
N WINDS LESS THAN 10 KT. SEAS 5 TO 7 FT.
TUE NIGHT
N WINDS LESS THAN 10 KT, SHIFTING TO NE AFTER
MIDNIGHT. SEAS 5 TO 7 FT.
CARIBBEAN BETWEEN 64W AND 72W
TODAY
E WINDS 10 TO 20 KT. SEAS 3 TO 4 FT GULF OF VENEZUELA,
AND 5 TO 7 FT ELSEWHERE.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT GULF OF
VENEZUELA, AND 5 TO 7 FT ELSEWHERE.
SAT
E WINDS 10 TO 15 KT. SEAS 3 FT GULF OF VENEZUELA, AND
4 TO 6 FT ELSEWHERE.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 4 TO 5 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
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
OFFSHORE LEEWARD ISLANDS AND ADJACENT ATLC WATERS FROM 15N TO
19N W OF 55W
TODAY
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 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 15 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
OFFSHORE WINDWARD ISLANDS AND ADJACENT ATLC WATERS FROM 07N TO
15N W OF 55W
TODAY
E WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
MON
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
TUE
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SYNOPSIS FOR THE THE SW N ATLANTIC INCLUDING THE BAHAMAS
SYNOPSIS
WIDESPREAD FRESH TO LOCALLY STRONG E TO SE WINDS
OCCURRING NORTH OF 15N AND EAST OF THE BAHAMAS WILL SLOWLY
DIMINISH THROUGH TONIGHT AS HIGH PRESSURE IN THE CENTRAL
ATLANTIC WEAKENS AND DRIFTS EASTWARD. SEAS IN THIS AREA WILL
SLOWLY SUBSIDE FROM NORTH TO SOUTH THROUGH EARLY SAT. A COLD
FRONT EXTENDING FROM 31N74W THROUGH THE NW BAHAMAS AND INTO
WESTERN CUBA WILL DECREASE IN FORWARD SPEED TODAY, BEFORE
REACHING FROM 31N68W TO CENTRAL CUBA BY SAT MORNING, THEN WEAKEN
FROM 31N59W TO EAST-CENTRAL CUBA SUN MORNING. FRESH TO STRONG W
TO NW WINDS AND ROUGH SEAS WILL OCCUR BEHIND THE FRONT N OF 28N.
LOOKING AHEAD, WIDESPREAD FRESH TO LOCALLY STRONG NE WINDS AND
ROUGH SEAS WILL REDEVELOP ACROSS AREAS NORTH OF 20N SUN NIGHT
THROUGH EARLY NEXT WEEK AS STRONG HIGH PRESSURE BUILDS ACROSS THE
WESTERN ATLANTIC AND INTO THE LOCAL REGION BEHIND THE WEAKENING
FRONT.
ATLC WATERS FROM 27N TO 31N W OF 77W
TODAY
NW WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TONIGHT
NW WINDS 15 TO 25 KT. SEAS 6 TO 9 FT.
SAT
N WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT NIGHT
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN
NE WINDS 10 TO 15 KT. SEAS 6 TO 7 FT.
SUN NIGHT
NE 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 7 TO 10 FT.
TUE
E WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
ATLC WATERS FROM 27N TO 31N BETWEEN 65W AND 77W
TODAY
W WINDS 10 TO 15 KT W OF 70W, AND S 10 TO 20 KT
ELSEWHERE. SEAS 5 TO 7 FT.
TONIGHT
W WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT
NW WINDS 10 TO 20 KT. SEAS 6 TO 9 FT.
SAT NIGHT
N WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
SUN
N WINDS 10 TO 15 KT. SEAS 7 TO 9 FT.
SUN NIGHT
N WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.
MON
NE WINDS 10 TO 15 KT. SEAS 7 TO 9 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
BAHAMAS N OF 22N
TODAY
N WINDS LESS THAN 10 KT. SEAS 3 TO 5 FT.
TONIGHT
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT
AFTER MIDNIGHT. SEAS 3 TO 5 FT.
SAT
N WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
SAT NIGHT
NE WINDS LESS THAN 10 KT. SEAS 3 TO 4 FT.
SUN
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 3 TO 4 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 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.
TUE
E WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TUE NIGHT
E WINDS 10 TO 20 KT. SEAS 4 TO 6 FT.
ATLC WATERS FROM 22N TO 27N BETWEEN 65W AND THE BAHAMAS
TODAY
SE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TONIGHT
W OF 70W, NW WINDS LESS THAN 10 KT, INCREASING TO
10 TO 15 KT AFTER MIDNIGHT. ELSEWHERE, S WINDS 10 TO 15 KT. SEAS
6 TO 8 FT.
SAT
W OF 70W, N WINDS 10 TO 15 KT. ELSEWHERE, SW WINDS 10 TO
15 KT, SHIFTING TO W IN THE AFTERNOON. SEAS 5 TO 7 FT.
SAT NIGHT
N WINDS 10 TO 15 KT W OF 70W, AND N LESS THAN 10 KT
ELSEWHERE. SEAS 5 TO 7 FT.
SUN
N WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 5 TO 7 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
MON
NE WINDS 15 TO 20 KT. SEAS 7 TO 10 FT.
MON NIGHT
NE WINDS 15 TO 25 KT. SEAS 8 TO 10 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
ATLC WATERS S OF 22N W OF 65W
TODAY
SE WINDS 10 TO 20 KT. SEAS 5 TO 7 FT.
TONIGHT
S WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SAT
N WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SAT NIGHT
NE WINDS LESS THAN 10 KT. SEAS 4 TO 6 FT.
SUN
NE WINDS LESS THAN 10 KT, INCREASING TO 10 TO 15 KT IN
THE AFTERNOON. SEAS 3 TO 5 FT.
SUN NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
NE WINDS 10 TO 20 KT. SEAS 6 TO 8 FT.
MON NIGHT
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
TUE
NE WINDS 10 TO 20 KT. SEAS 7 TO 10 FT.
TUE NIGHT
NE WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.
ATLC WATERS FROM 19N TO 22N BETWEEN 55W AND 65W
TODAY
E WINDS 10 TO 20 KT. SEAS 8 TO 11 FT.
TONIGHT
SE WINDS 10 TO 20 KT. SEAS 7 TO 9 FT.
SAT
SE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
SUN
SE WINDS 10 TO 15 KT, DIMINISHING TO LESS THAN 10 KT IN
THE AFTERNOON. SEAS 5 TO 7 FT.
SUN NIGHT
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
MON
E WINDS 10 TO 15 KT. SEAS 5 TO 6 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
TUE
NE WINDS 10 TO 15 KT. SEAS 6 TO 9 FT.
TUE NIGHT
NE WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
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