756
FZNT24 KNHC 180918
OFFNT4
OFFSHORE WATERS FORECAST FOR THE GULF OF AMERICA
NWS NATIONAL HURRICANE CENTER MIAMI, FL
418 AM EST THU DEC 18 2025
OFFSHORE WATERS FORECAST FOR THE GULF OF AMERICA
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.
GMZ001-182130-
SYNOPSIS FOR THE GULF OF AMERICA
418 AM EST THU DEC 18 2025
SYNOPSIS
THE PRESSURE GRADIENT BETWEEN A RIDGE ACROSS THE
WESTERN ATLANTIC AND A SURFACE TROUGH ACROSS THE E CENTRAL GULF
WILL PRODUCE FRESH TO STRONG S TO SE WINDS TODAY ACROSS THE
EASTERN GULF THAT WILL SHIFT NORTHWARD INTO THE FLORIDA BIG BEND
LATE THIS AFTERNOON AND DIMINISH. OTHERWISE, WINDS ACROSS THE REST
OF THE BASIN WILL VEER TO THE S AND SW TODAY AHEAD OF THE NEXT
COLD FRONT, WHICH IS FORECAST TO MOVE INTO THE NW GULF THIS
EVENING. THE FRONT WILL THEN REACH FROM THE FLORIDA BIG BEND TO
NEAR BROWNSVILLE, TEXAS BY FRI MORNING, FROM SW FLORIDA TO NE
MEXICO FRI EVENING, THEN BEGIN TO LIFT NORTHWARD AND DISSIPATE
THROUGH SAT. HIGH PRESSURE WILL MOVE INTO THE NE GULF SAT
AFTERNOON THROUGH SUN.
GMZ040-182130-
NW GULF OF AMERICA INCLUDING STETSON BANK-
418 AM EST THU DEC 18 2025
TODAY
SW WINDS 15 KT. SEAS 3 TO 5 FT.
TONIGHT
S OF 27N, SW TO W WINDS 10 KT, SHIFTING TO N LATE. N
OF 27N, W WINDS 10 TO 15 KT, BECOMING N 20 TO 25 KT
LATE. SEAS 4 TO 6 FT.
FRI
NE WINDS 20 KT, SHIFTING TO NE TO E 10 TO 15 KT IN THE
AFTERNOON. SEAS 5 TO 7 FT.
FRI NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
S WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SAT NIGHT
S WINDS 15 KT. SEAS 2 TO 4 FT.
SUN
SE TO S WINDS 10 KT. SEAS 2 TO 4 FT.
SUN NIGHT
SE WINDS 10 KT. SEAS 3 FT OR LESS.
MON
E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
MON NIGHT
E TO SE WINDS 15 KT. SEAS 3 TO 5 FT.
GMZ041-182130-
SW LOUISIANA OFFSHORE WATERS INCLUDING FLOWER GARDEN BANK MARINE
SANCTUARY-
418 AM EST THU DEC 18 2025
TODAY
SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
SW TO W WINDS 10 TO 15 KT, SHIFTING TO NW 15 TO 20 KT
LATE. SEAS 4 TO 6 FT.
FRI
NE WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
S WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SAT NIGHT
S WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SUN
SE WINDS 10 KT. SEAS 2 TO 4 FT.
SUN NIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
MON
E TO SE WINDS 15 KT. SEAS 4 TO 6 FT.
MON NIGHT
E TO SE WINDS 15 KT. SEAS 5 TO 7 FT.
GMZ056-182130-
N CENTRAL GULF OF AMERICA OFFSHORE WATERS-
418 AM EST THU DEC 18 2025
TODAY
SW WINDS 15 TO 20 KT. SEAS 6 TO 8 FT. SCATTERED SHOWERS.
TONIGHT
W WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
FRI
N WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
SE WINDS 10 KT. SEAS 2 TO 4 FT.
SAT NIGHT
W OF 89W, SE TO S WINDS 10 KT. E OF 89W, SE TO S
WINDS 10 KT IN THE EVENING, BECOMING VARIABLE LESS THAN 5 KT.
SEAS 3 FT OR LESS.
SUN
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SUN NIGHT
NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON
E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
GMZ057-182130-
NE GULF OF AMERICA N OF 26N E OF 87W-
418 AM EST THU DEC 18 2025
TODAY
SE TO S WINDS 20 TO 25 KT. SEAS 6 TO 8 FT IN SE TO S
SWELL. SCATTERED SHOWERS.
TONIGHT
SW WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
FRI
NW TO N WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
FRI NIGHT
N TO NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 FT OR LESS.
SUN
NE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
MON
NE TO E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
MON NIGHT
E WINDS 20 TO 25 KT. SEAS 6 TO 8 FT.
GMZ058-182130-
W CENTRAL GULF OF AMERICA FROM 22N TO 26N W OF 94W-
418 AM EST THU DEC 18 2025
TODAY
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
TONIGHT
S WINDS 10 KT IN THE EVENING, BECOMING VARIABLE LESS
THAN 5 KT. SEAS 2 TO 4 FT.
FRI
N TO NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
NE TO E WINDS 10 KT, SHIFTING TO SE LATE.
SEAS 3 TO 5 FT.
SAT
SE TO S WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SAT NIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SUN
SE WINDS 10 KT. SEAS 2 TO 4 FT.
SUN NIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
MON
E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
GMZ045-182130-
W CENTRAL GULF OF AMERICA FROM 22N TO 26N BETWEEN 91W AND 94W-
418 AM EST THU DEC 18 2025
TODAY
S WINDS 10 KT. SEAS 3 TO 5 FT.
TONIGHT
S WINDS 10 KT. SEAS 2 TO 4 FT.
FRI
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SAT NIGHT
SE WINDS 10 KT. SEAS 2 TO 4 FT.
SUN
E TO SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SUN NIGHT
E WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.
MON
E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
MON NIGHT
E WINDS 15 KT. SEAS 5 TO 7 FT.
GMZ046-182130-
CENTRAL GULF OF AMERICA FROM 22N TO 26N BETWEEN 87W AND 91W-
418 AM EST THU DEC 18 2025
TODAY
S OF 24N, SE TO S WINDS 10 KT IN THE MORNING, BECOMING
VARIABLE LESS THAN 5 KT. N OF 24N, SW WINDS 10 TO 15 KT. SEAS
5 TO 7 FT IN E SWELL.
TONIGHT
S OF 24N, VARIABLE WINDS LESS THAN 5 KT, BECOMING NE
10 KT LATE. N OF 24N, W WINDS 10 KT. SEAS 3 TO 5 FT.
FRI
N TO NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
FRI NIGHT
NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
E WINDS 10 KT. SEAS 3 TO 5 FT.
SAT NIGHT
E TO SE WINDS 10 KT. SEAS 2 TO 4 FT.
SUN
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SUN NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.
MON
NE TO E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
MON NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 6 TO 8 FT IN E TO SE
SWELL.
GMZ047-182130-
SE GULF OF AMERICA FROM 22N TO 26N E OF 87W INCLUDING STRAITS OF
FLORIDA-
418 AM EST THU DEC 18 2025
TODAY
SE TO S WINDS 15 TO 20 KT. SEAS 5 TO 7 FT IN E TO SE
SWELL. SCATTERED SHOWERS.
TONIGHT
SW WINDS 10 KT. SEAS 4 TO 6 FT IN E SWELL.
FRI
NW TO N WINDS 10 KT. SEAS 2 TO 4 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT
NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
SAT NIGHT
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SUN
NE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SUN NIGHT
NE WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
MON
NE TO E WINDS 20 KT. SEAS 5 TO 7 FT.
MON NIGHT
NE TO E WINDS 20 TO 25 KT. SEAS 7 TO 10 FT IN E
SWELL.
GMZ048-182130-
SW GULF OF AMERICA S OF 22N W OF 94W-
418 AM EST THU DEC 18 2025
TODAY
SE TO S WINDS 10 KT. SEAS 2 TO 4 FT.
TONIGHT
E TO SE WINDS 10 KT. SEAS 2 TO 4 FT.
FRI
N TO NE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. SCATTERED
SHOWERS.
FRI NIGHT
NE WINDS 10 KT. SEAS 2 TO 4 FT. SCATTERED SHOWERS.
SAT
VARIABLE WINDS LESS THAN 5 KT S OF 21N W OF 95W, AND SE
10 KT ELSEWHERE. SEAS 2 TO 4 FT.
SAT NIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SUN
E TO SE WINDS 10 KT. SEAS 3 FT OR LESS.
SUN NIGHT
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
MON
NE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 6 FT.
GMZ049-182130-
CENTRAL BAY OF CAMPECHE-
418 AM EST THU DEC 18 2025
TODAY
E TO SE WINDS 10 KT. SEAS 2 TO 4 FT.
TONIGHT
E WINDS 10 KT. SEAS 3 FT OR LESS. SCATTERED SHOWERS.
FRI
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS. SCATTERED
SHOWERS.
FRI NIGHT
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. SCATTERED
SHOWERS.
SAT
E TO SE WINDS 10 KT. SEAS 2 TO 4 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SUN
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SUN NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.
MON
NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.
MON NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
GMZ050-182130-
E BAY OF CAMPECHE INCLUDING CAMPECHE BANK-
418 AM EST THU DEC 18 2025
TODAY
W OF 90W, E TO SE WINDS 10 KT. E OF 90W, SE WINDS 10 KT
IN THE MORNING, BECOMING VARIABLE LESS THAN 5 KT. SEAS 2 TO 4 FT.
TONIGHT
NE TO E WINDS 10 KT. SEAS 2 TO 4 FT.
FRI
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS. SCATTERED
SHOWERS.
FRI NIGHT
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT. SCATTERED
SHOWERS.
SAT
E WINDS 10 KT. SEAS 2 TO 4 FT.
SAT NIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SUN
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SUN NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.
MON
NE TO E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.
MON NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 5 TO 7 FT.
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