217
FZNT24 KNHC 181915
OFFNT4
OFFSHORE WATERS FORECAST FOR THE GULF OF AMERICA
NWS NATIONAL HURRICANE CENTER MIAMI, FL
315 PM EDT TUE AUG 18 2026
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.
GMZ001-190715-
SYNOPSIS FOR THE GULF OF AMERICA
315 PM EDT TUE AUG 18 2026
SYNOPSIS
HIGH PRESSURE WILL PREVAIL ACROSS THE GULF WATERS
THROUGH THE REMAINDER OF THE WEEK INTO THE WEEKEND. A WEAK
PRESSURE PATTERN WILL SUPPORT MOSTLY GENTLE TO MODERATE WINDS
ACROSS MUCH OF THE BASIN. A DIURNALLY INDUCED SURFACE TROUGH WILL
GENERATE FRESH TO LOCALLY STRONG WINDS NORTH AND WEST OF THE
YUCATAN PENINSULA EARLY EACH EVENING. THESE WINDS WILL SPREAD
WESTWARD AWAY FROM THE YUCATAN AT NIGHT AS THE TROUGH MIGRATES
INTO THE SW GULF. SLIGHT TO MODERATE SEAS ARE EXPECTED THROUGH THE
FORECAST PERIOD.
GMZ040-190715-
NW GULF OF AMERICA INCLUDING STETSON BANK-
315 PM EDT TUE AUG 18 2026
TONIGHT
SE TO S WINDS 10 KT. SEAS 3 FT OR LESS.
WED
S WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
WED NIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
THU
S WINDS 10 KT. SEAS 3 FT OR LESS.
THU NIGHT
SE TO S WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
FRI
S WINDS 10 KT. SEAS 3 FT OR LESS.
FRI NIGHT
S WINDS 10 KT. SEAS 3 FT OR LESS.
SAT
S TO SW WINDS 10 KT IN THE MORNING, BECOMING VARIABLE LESS
THAN 5 KT. SEAS 3 FT OR LESS.
SAT NIGHT
S WINDS 10 KT. SEAS 3 FT OR LESS.
SUN
S TO SW WINDS 10 KT IN THE MORNING, BECOMING VARIABLE LESS
THAN 5 KT. SEAS 3 FT OR LESS.
SUN NIGHT
S WINDS 10 KT. SEAS 3 FT OR LESS.
GMZ041-190715-
SW LOUISIANA OFFSHORE WATERS INCLUDING FLOWER GARDEN BANK MARINE
SANCTUARY-
315 PM EDT TUE AUG 18 2026
TONIGHT
S WINDS 10 KT. SEAS 3 FT OR LESS.
WED
S WINDS 10 KT IN THE MORNING, BECOMING VARIABLE LESS THAN
5 KT. SEAS 3 FT OR LESS.
WED NIGHT
SE TO S WINDS 10 KT. SEAS 3 FT OR LESS.
THU
S TO SW WINDS 10 KT. SEAS 3 FT OR LESS.
THU NIGHT
VARIABLE WINDS LESS THAN 5 KT, BECOMING S 10 KT
LATE. SEAS 3 FT OR LESS.
FRI
S TO SW WINDS 10 KT IN THE MORNING, BECOMING VARIABLE LESS
THAN 5 KT. SEAS 3 FT OR LESS.
FRI NIGHT
S TO SW WINDS 10 KT. SEAS 3 FT OR LESS.
SAT
SW TO W WINDS 10 KT. SEAS 3 FT OR LESS.
SAT NIGHT
SW WINDS 10 KT. SEAS 3 FT OR LESS.
SUN
W WINDS 10 KT. SEAS 3 FT OR LESS.
SUN NIGHT
W OF 92W, VARIABLE WINDS LESS THAN 5 KT, BECOMING SW
10 KT LATE. E OF 92W, NW WINDS 10 KT IN THE EVENING,
BECOMING VARIABLE LESS THAN 5 KT. SEAS 3 FT OR LESS.
GMZ056-190715-
N CENTRAL GULF OF AMERICA OFFSHORE WATERS-
315 PM EDT TUE AUG 18 2026
TONIGHT
VARIABLE WINDS LESS THAN 5 KT W OF 89W, AND SW TO W
10 KT E OF 89W. SEAS 3 FT OR LESS.
WED
W OF 89W, SW WINDS 10 KT IN THE MORNING, BECOMING VARIABLE
LESS THAN 5 KT. E OF 89W, W WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
WED NIGHT
VARIABLE WINDS LESS THAN 5 KT, BECOMING SW 10 KT
LATE. SEAS 3 FT OR LESS.
THU
W OF 89W, SW WINDS 10 KT IN THE MORNING, BECOMING VARIABLE
LESS THAN 5 KT. E OF 89W, W TO NW WINDS 10 TO 15 KT. SEAS 3 FT OR
LESS.
THU NIGHT
VARIABLE WINDS LESS THAN 5 KT W OF 89W, AND W 10 KT
E OF 89W. SEAS 3 FT OR LESS.
FRI
SW TO W WINDS 10 KT. SEAS 3 FT OR LESS.
FRI NIGHT
SW TO W WINDS 10 KT. SEAS 3 FT OR LESS.
SAT
SW TO W WINDS 10 KT. SEAS 3 FT OR LESS.
SAT NIGHT
W WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SUN
W WINDS 10 KT. SEAS 3 FT OR LESS.
SUN NIGHT
W WINDS 10 KT IN THE EVENING, BECOMING VARIABLE LESS
THAN 5 KT. SEAS 3 FT OR LESS.
GMZ057-190715-
NE GULF OF AMERICA N OF 26N E OF 87W-
315 PM EDT TUE AUG 18 2026
TONIGHT
W TO NW WINDS 10 KT. SEAS 3 FT OR LESS.
WED
W TO NW WINDS 10 TO 15 KT. SEAS 3 FT OR LESS. SCATTERED
SHOWERS AND ISOLATED TSTMS.
WED NIGHT
NW WINDS 15 TO 20 KT, SHIFTING TO W 10 KT LATE. SEAS
3 FT OR LESS.
THU
W TO NW WINDS 10 KT. SEAS 3 FT OR LESS. SCATTERED SHOWERS
AND ISOLATED TSTMS.
THU NIGHT
W TO NW WINDS 10 KT. SEAS 3 FT OR LESS.
FRI
W WINDS 10 KT. SEAS 3 FT OR LESS.
FRI NIGHT
SW TO W WINDS 10 KT. SEAS 3 FT OR LESS.
SAT
SW TO W WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SAT NIGHT
SW TO W WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SUN
W WINDS 10 KT. SEAS 3 FT OR LESS.
SUN NIGHT
SW TO W WINDS 10 KT. SEAS 3 FT OR LESS.
GMZ058-190715-
W CENTRAL GULF OF AMERICA FROM 22N TO 26N W OF 94W-
315 PM EDT TUE AUG 18 2026
TONIGHT
SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
WED
SE WINDS 10 KT. SEAS 3 FT OR LESS.
WED NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
THU
SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
THU NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
FRI
SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
FRI NIGHT
SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SAT
SE WINDS 10 KT. SEAS 3 FT OR LESS.
SAT NIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SUN
W OF 96W, SE TO S WINDS 10 KT. E OF 96W, SE TO S WINDS
10 KT IN THE MORNING, BECOMING VARIABLE LESS THAN 5 KT. SEAS 3 FT
OR LESS.
SUN NIGHT
E TO SE WINDS 10 KT. SEAS 3 FT OR LESS.
GMZ045-190715-
W CENTRAL GULF OF AMERICA FROM 22N TO 26N BETWEEN 91W AND 94W-
315 PM EDT TUE AUG 18 2026
TONIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
WED
SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
WED NIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
THU
SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
THU NIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
FRI
SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
FRI NIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SAT
S OF 24N, E TO SE WINDS 10 TO 15 KT. N OF 24N, SE TO S
WINDS 10 KT IN THE MORNING, BECOMING VARIABLE LESS THAN 5 KT.
SEAS 3 FT OR LESS.
SAT NIGHT
E TO SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SUN
SE WINDS 10 KT IN THE MORNING, BECOMING VARIABLE LESS THAN
5 KT. SEAS 3 FT OR LESS.
SUN NIGHT
S OF 24N, E WINDS 10 KT. N OF 24N, VARIABLE WINDS
LESS THAN 5 KT, BECOMING SE 10 KT LATE. SEAS 3 FT OR
LESS.
GMZ046-190715-
CENTRAL GULF OF AMERICA FROM 22N TO 26N BETWEEN 87W AND 91W-
315 PM EDT TUE AUG 18 2026
TONIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
WED
S OF 24N, E TO SE WINDS 10 TO 15 KT. N OF 24N, SE WINDS
10 KT IN THE MORNING, BECOMING VARIABLE LESS THAN 5 KT. SEAS 3 FT
OR LESS.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
THU
S OF 24N, E TO SE WINDS 10 TO 15 KT. N OF 24N, SE TO S
WINDS 10 KT IN THE MORNING, BECOMING VARIABLE LESS THAN 5 KT.
SEAS 3 FT OR LESS.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
FRI
S OF 24N, E TO SE WINDS 10 TO 15 KT. N OF 24N, SE TO S
WINDS 10 KT IN THE MORNING, BECOMING VARIABLE LESS THAN 5 KT.
SEAS 3 FT OR LESS.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SAT
SE WINDS 10 KT IN THE MORNING, BECOMING VARIABLE LESS THAN
5 KT. SEAS 3 FT OR LESS.
SAT NIGHT
E WINDS 10 TO 15 KT S OF 24N, AND VARIABLE LESS THAN
5 KT N OF 24N. SEAS 3 FT OR LESS.
SUN
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 FT OR LESS.
SUN NIGHT
E WINDS 10 KT S OF 24N, AND VARIABLE LESS THAN 5 KT
N OF 24N. SEAS 3 FT OR LESS.
GMZ047-190715-
SE GULF OF AMERICA FROM 22N TO 26N E OF 87W INCLUDING STRAITS OF
FLORIDA-
315 PM EDT TUE AUG 18 2026
TONIGHT
S OF 24N, NE TO E WINDS 10 TO 15 KT. N OF 24N, NE
WINDS 10 KT IN THE EVENING, BECOMING VARIABLE LESS THAN 5 KT.
SEAS 2 TO 4 FT.
WED
NE TO E WINDS 10 KT S OF 24N, AND VARIABLE LESS THAN 5 KT
N OF 24N. SEAS 3 FT OR LESS.
WED NIGHT
S OF 24N, NE WINDS 10 KT. N OF 24N, N WINDS 10 KT IN
THE EVENING, BECOMING VARIABLE LESS THAN 5 KT. SEAS 3 FT OR LESS.
THU
NE TO E WINDS 10 KT S OF 24N, AND VARIABLE LESS THAN 5 KT
N OF 24N. SEAS 3 FT OR LESS.
THU NIGHT
S OF 24N, NE TO E WINDS 10 KT. N OF 24N, N WINDS
10 KT IN THE EVENING, BECOMING VARIABLE LESS THAN 5 KT. SEAS 3 FT
OR LESS.
FRI
NE TO E WINDS 10 KT S OF 24N, AND VARIABLE LESS THAN 5 KT
N OF 24N. SEAS 3 FT OR LESS.
FRI NIGHT
NE TO E WINDS 10 KT S OF 24N, AND VARIABLE LESS THAN
5 KT N OF 24N. SEAS 3 FT OR LESS.
SAT
NE TO E WINDS 10 KT S OF 24N, AND VARIABLE LESS THAN 5 KT
N OF 24N. SEAS 3 FT OR LESS.
SAT NIGHT
NE TO E WINDS 10 KT S OF 24N, AND VARIABLE LESS THAN
5 KT N OF 24N. SEAS 3 FT OR LESS.
SUN
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 FT OR LESS IN NW TO
N SWELL, SUBSIDING TO 3 FT OR LESS IN THE AFTERNOON.
SUN NIGHT
S OF 24N, NE WINDS 10 KT IN THE EVENING. VARIABLE
WINDS LESS THAN 5 KT LATE. N OF 24N, VARIABLE WINDS
LESS THAN 5 KT IN THE EVENING. SEAS 3 FT OR LESS.
GMZ048-190715-
SW GULF OF AMERICA S OF 22N W OF 94W-
315 PM EDT TUE AUG 18 2026
TONIGHT
NE TO E WINDS 10 KT. SEAS 3 FT OR LESS. SCATTERED
SHOWERS AND ISOLATED TSTMS.
WED
S OF 21N W OF 95W, S WINDS 10 KT IN THE MORNING, BECOMING
VARIABLE LESS THAN 5 KT. ELSEWHERE, E WINDS 10 KT. SEAS 3 FT OR
LESS.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
THU
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
THU NIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
FRI
E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
FRI NIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SAT
NE TO E WINDS 10 KT. SEAS 3 FT OR LESS.
SAT NIGHT
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SUN
SE WINDS 10 KT, SHIFTING TO NE IN THE AFTERNOON. SEAS 3 FT
OR LESS.
SUN NIGHT
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
GMZ049-190715-
CENTRAL BAY OF CAMPECHE-
315 PM EDT TUE AUG 18 2026
TONIGHT
NE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS. SCATTERED
SHOWERS AND ISOLATED TSTMS.
WED
E TO SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
WED NIGHT
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
THU
E TO SE WINDS 15 TO 20 KT, DIMINISHING TO 10 KT IN THE
AFTERNOON. SEAS 2 TO 4 FT.
THU NIGHT
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
FRI
E TO SE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
FRI NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
SAT
E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.
SAT NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 3 FT OR LESS.
SUN
E TO SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
SUN NIGHT
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
GMZ050-190715-
E BAY OF CAMPECHE INCLUDING CAMPECHE BANK-
315 PM EDT TUE AUG 18 2026
TONIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 3 FT OR LESS.
WED
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.
WED NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
THU
SE WINDS 10 TO 15 KT, SHIFTING TO NE TO E IN THE
AFTERNOON. SEAS 3 FT OR LESS.
THU NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
FRI
W OF 90W, E TO SE WINDS 15 TO 20 KT, SHIFTING TO E 10 KT
IN THE AFTERNOON. E OF 90W, NE TO E WINDS 10 KT. SEAS 2 TO 4 FT.
FRI NIGHT
NE WINDS 15 TO 20 KT, SHIFTING TO E LATE.
SEAS 3 FT OR LESS.
SAT
E TO SE WINDS 10 TO 15 KT, SHIFTING TO NE IN THE
AFTERNOON. SEAS 3 FT OR LESS.
SAT NIGHT
NE TO E WINDS 15 TO 20 KT. SEAS 3 FT OR LESS.
SUN
W OF 90W, SE WINDS 10 TO 15 KT, SHIFTING TO N TO NE IN THE
AFTERNOON. E OF 90W, VARIABLE WINDS LESS THAN 5 KT, BECOMING N TO
NE 10 KT IN THE AFTERNOON. SEAS 3 FT OR LESS.
SUN NIGHT
W OF 90W, NE WINDS 10 TO 15 KT, SHIFTING TO E TO SE
LATE. E OF 90W, E WINDS 10 KT IN THE EVENING, BECOMING
VARIABLE LESS THAN 5 KT. SEAS 3 FT OR LESS.
FORECASTER AL
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