589  
FZNT24 KNHC 211409  
OFFNT4  
 
OFFSHORE WATERS FORECAST FOR THE GULF OF AMERICA  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1009 AM EDT MON SEP 21 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.  
 
GMZ001-220215-  
SYNOPSIS FOR THE GULF OF AMERICA  
1009 AM EDT MON SEP 21 2026  
   
SYNOPSIS
 
A VERY WEAK PRESSURE GRADIENT WILL FORCE ONLY GENTLE  
TO MODERATE WINDS ACROSS THE GULF THROUGH THU. A VIGOROUS UPPER-  
LEVEL LOW WILL PROMOTE SCATTERED SHOWERS AND THUNDERSTORMS OVER  
THE SE GULF AND THE STRAITS OF FLORIDA FOR AT LEAST THE NEXT TWO  
DAYS. LOOKING AHEAD, A COLD FRONT SHOULD DIP INTO THE NE GULF THU  
NIGHT AND FRI WITH FRESH NE TO E WINDS TO FOLLOW ACROSS THE N  
GULF.  
 

 
 
GMZ040-220215-  
NW GULF OF AMERICA INCLUDING STETSON BANK-  
1009 AM EDT MON SEP 21 2026  
   
TODAY
 
E WINDS 10 KT. SEAS 3 FT OR LESS.    
TONIGHT
 
E TO SE WINDS 10 KT. SEAS 3 FT OR LESS.    
TUE
 
VARIABLE WINDS LESS THAN 5 KT, BECOMING NE TO E 10 KT IN  
THE AFTERNOON. SEAS 3 FT OR LESS.    
TUE NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
WED
 
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
THU
 
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
FRI
 
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.   
FRI NIGHT
 
E WINDS 15 KT. SEAS 3 TO 5 FT.  
 

 
 
GMZ041-220215-  
SW LOUISIANA OFFSHORE WATERS INCLUDING FLOWER GARDEN BANK MARINE  
SANCTUARY-  
1009 AM EDT MON SEP 21 2026  
   
TODAY
 
NE TO E WINDS 10 KT. SEAS 3 FT OR LESS.    
TONIGHT
 
E WINDS 10 KT. SEAS 3 FT OR LESS.    
TUE
 
NE WINDS 10 KT. SEAS 3 FT OR LESS.    
TUE NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
WED
 
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
THU
 
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
THU NIGHT
 
E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
FRI
 
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.   
FRI NIGHT
 
E WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.  
 

 
 
GMZ056-220215-  
N CENTRAL GULF OF AMERICA OFFSHORE WATERS-  
1009 AM EDT MON SEP 21 2026  
   
TODAY
 
NE TO E WINDS 10 KT. SEAS 3 FT OR LESS. SCATTERED  
SHOWERS AND ISOLATED TSTMS.    
TONIGHT
 
E WINDS 10 KT. SEAS 3 FT OR LESS.    
TUE
 
VARIABLE WINDS LESS THAN 5 KT, BECOMING NE TO E 10 KT IN  
THE AFTERNOON. SEAS 3 FT OR LESS.    
TUE NIGHT
 
E WINDS 10 KT. SEAS 3 FT OR LESS.    
WED
 
NE TO E WINDS 10 KT. SEAS 3 FT OR LESS.   
WED NIGHT
 
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
THU
 
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
THU NIGHT
 
NE TO E WINDS 15 KT. SEAS 3 TO 5 FT.    
FRI
 
NE TO E WINDS 15 TO 20 KT. SEAS 3 TO 5 FT.   
FRI NIGHT
 
E WINDS 15 TO 20 KT. SEAS 4 TO 6 FT.  
 

 
 
GMZ057-220215-  
NE GULF OF AMERICA N OF 26N E OF 87W-  
1009 AM EDT MON SEP 21 2026  
   
TODAY
 
VARIABLE WINDS LESS THAN 5 KT, BECOMING NE TO E 10 KT IN  
THE AFTERNOON. SEAS 3 FT OR LESS.    
TONIGHT
 
E WINDS 10 KT. SEAS 3 FT OR LESS. SCATTERED SHOWERS  
AND ISOLATED TSTMS.    
TUE
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 FT OR LESS.    
TUE NIGHT
 
VARIABLE WINDS LESS THAN 5 KT, BECOMING E TO SE  
10 KT LATE. SEAS 3 FT OR LESS.    
WED
 
VARIABLE WINDS LESS THAN 5 KT, BECOMING NE TO E 10 KT IN  
THE AFTERNOON. SEAS 3 FT OR LESS.    
WED NIGHT
 
E WINDS 10 KT. SEAS 3 FT OR LESS.    
THU
 
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
THU NIGHT
 
NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI
 
NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.   
FRI NIGHT
 
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.  
 

 
 
GMZ058-220215-  
W CENTRAL GULF OF AMERICA FROM 22N TO 26N W OF 94W-  
1009 AM EDT MON SEP 21 2026  
   
TODAY
 
VARIABLE WINDS LESS THAN 5 KT W OF 96W, AND E TO SE  
10 KT E OF 96W. SEAS 3 FT OR LESS.    
TONIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
TUE
 
VARIABLE WINDS LESS THAN 5 KT, BECOMING NE TO E 10 KT IN  
THE AFTERNOON. SEAS 3 FT OR LESS IN NE TO E SWELL, SUBSIDING TO  
3 FT OR LESS IN THE AFTERNOON.    
TUE NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
WED
 
NE TO E WINDS 10 KT. SEAS 3 FT OR LESS.   
WED NIGHT
 
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
THU
 
NE WINDS 10 KT. SEAS 2 TO 4 FT.    
THU NIGHT
 
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
FRI
 
NE WINDS 10 KT. SEAS 2 TO 4 FT.    
FRI NIGHT
 
NE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.  
 

 
 
GMZ045-220215-  
W CENTRAL GULF OF AMERICA FROM 22N TO 26N BETWEEN 91W AND 94W-  
1009 AM EDT MON SEP 21 2026  
   
TODAY
 
E WINDS 10 KT. SEAS 3 FT OR LESS.    
TONIGHT
 
NE TO E WINDS 10 KT. SEAS 3 FT OR LESS.    
TUE
 
NE TO E WINDS 10 KT. SEAS 3 FT OR LESS. SCATTERED SHOWERS  
AND ISOLATED TSTMS.    
TUE NIGHT
 
NE TO E WINDS 10 KT. SEAS 3 FT OR LESS.    
WED
 
E WINDS 10 KT. SEAS 3 FT OR LESS.    
WED NIGHT
 
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
THU
 
NE TO E WINDS 10 KT. SEAS 3 FT OR LESS.    
THU NIGHT
 
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
FRI
 
NE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
FRI NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 

 
 
GMZ046-220215-  
CENTRAL GULF OF AMERICA FROM 22N TO 26N BETWEEN 87W AND 91W-  
1009 AM EDT MON SEP 21 2026  
   
TODAY
 
VARIABLE WINDS LESS THAN 5 KT S OF 24N, AND NE TO E  
10 KT N OF 24N. SEAS 3 FT OR LESS.    
TONIGHT
 
E WINDS 10 KT. SEAS 3 FT OR LESS.    
TUE
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 FT OR LESS.    
TUE NIGHT
 
E WINDS 10 KT. SEAS 3 FT OR LESS.    
WED
 
E WINDS 10 KT. SEAS 3 FT OR LESS.    
WED NIGHT
 
E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
THU
 
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
THU NIGHT
 
NE TO E WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
FRI
 
E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.   
FRI NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.  
 

 
 
GMZ047-220215-  
SE GULF OF AMERICA FROM 22N TO 26N E OF 87W INCLUDING STRAITS OF  
FLORIDA-  
1009 AM EDT MON SEP 21 2026  
   
TODAY
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 FT OR LESS.  
SCATTERED SHOWERS AND ISOLATED TSTMS.    
TONIGHT
 
S OF 24N, VARIABLE WINDS LESS THAN 5 KT, BECOMING SE  
10 KT LATE. N OF 24N, E TO SE WINDS 10 KT. SEAS 3 FT OR  
LESS. SCATTERED SHOWERS AND ISOLATED TSTMS.    
TUE
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 FT OR LESS.  
SCATTERED SHOWERS AND ISOLATED TSTMS.    
TUE NIGHT
 
E TO SE WINDS 10 KT. SEAS 3 FT OR LESS. SCATTERED  
SHOWERS AND ISOLATED TSTMS.    
WED
 
SE WINDS 10 KT. SEAS 3 FT OR LESS.    
WED NIGHT
 
E TO SE WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
THU
 
E TO SE WINDS 10 KT. SEAS 3 FT OR LESS.    
THU NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.   
FRI
 
SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
FRI NIGHT
 
S OF 24N, E TO SE WINDS 10 KT. N OF 24N, SE TO S  
WINDS 10 KT IN THE EVENING, BECOMING VARIABLE LESS THAN 5 KT.  
SEAS 2 TO 4 FT.  
 

 
 
GMZ048-220215-  
SW GULF OF AMERICA S OF 22N W OF 94W-  
1009 AM EDT MON SEP 21 2026  
   
TODAY
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 FT OR LESS.    
TONIGHT
 
S OF 21N W OF 95W, NE WINDS 10 KT IN THE EVENING,  
BECOMING VARIABLE LESS THAN 5 KT. ELSEWHERE, NE TO E WINDS 10 KT.  
SEAS 3 FT OR LESS.    
TUE
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 FT OR LESS.  
SCATTERED SHOWERS AND ISOLATED TSTMS.    
TUE NIGHT
 
S OF 21N W OF 95W, NE WINDS 10 KT IN THE EVENING,  
BECOMING VARIABLE LESS THAN 5 KT. ELSEWHERE, NE TO E WINDS 10 KT.  
SEAS 3 FT OR LESS. SCATTERED SHOWERS AND ISOLATED TSTMS.    
WED
 
VARIABLE WINDS LESS THAN 5 KT, BECOMING N 10 KT IN THE  
AFTERNOON. SEAS 3 FT OR LESS.    
WED NIGHT
 
N TO NE WINDS 10 KT. SEAS 3 FT OR LESS.    
THU
 
N WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
THU NIGHT
 
N WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
FRI
 
NW TO N WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
FRI NIGHT
 
N WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.  
 

 
 
GMZ049-220215-  
CENTRAL BAY OF CAMPECHE-  
1009 AM EDT MON SEP 21 2026  
   
TODAY
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 FT OR LESS.    
TONIGHT
 
NE WINDS 10 KT. SEAS 3 FT OR LESS. SCATTERED SHOWERS  
AND ISOLATED TSTMS.    
TUE
 
VARIABLE WINDS LESS THAN 5 KT. SEAS 3 FT OR LESS.  
SCATTERED SHOWERS AND ISOLATED TSTMS.    
TUE NIGHT
 
NE WINDS 10 KT. SEAS 3 FT OR LESS. SCATTERED SHOWERS  
AND ISOLATED TSTMS.    
WED
 
S OF 20N, VARIABLE WINDS LESS THAN 5 KT, BECOMING NW 10 KT  
IN THE AFTERNOON. N OF 20N, NE TO E WINDS 10 KT IN THE MORNING,  
BECOMING VARIABLE LESS THAN 5 KT. SEAS 3 FT OR LESS.    
WED NIGHT
 
NE WINDS 10 KT. SEAS 3 FT OR LESS.    
THU
 
NE WINDS 10 KT. SEAS 3 FT OR LESS.    
THU NIGHT
 
NE WINDS 10 KT. SEAS 3 FT OR LESS.    
FRI
 
N TO NE WINDS 10 KT. SEAS 3 FT OR LESS.    
FRI NIGHT
 
S OF 20N, N WINDS 10 KT IN THE EVENING, BECOMING  
VARIABLE LESS THAN 5 KT. N OF 20N, NE WINDS 10 KT. SEAS 3 FT OR  
LESS.  
 

 
 
GMZ050-220215-  
E BAY OF CAMPECHE INCLUDING CAMPECHE BANK-  
1009 AM EDT MON SEP 21 2026  
   
TODAY
 
W OF 90W, VARIABLE LESS THAN 5 KT. VARIABLE WINDS LESS  
THAN 5 KT LATE IN THE MORNING. E OF 90W, N TO NE WINDS 10 KT IN  
THE AFTERNOON. SEAS 3 FT OR LESS.    
TONIGHT
 
N TO NE WINDS 10 KT, SHIFTING TO E LATE.  
SEAS 3 FT OR LESS. SCATTERED SHOWERS AND ISOLATED TSTMS.    
TUE
 
W OF 90W, E TO SE WINDS 10 KT IN THE MORNING, BECOMING  
VARIABLE LESS THAN 5 KT. E OF 90W, VARIABLE WINDS LESS THAN 5 KT,  
BECOMING NE 10 KT IN THE AFTERNOON. SEAS 3 FT OR LESS.    
TUE NIGHT
 
N TO NE WINDS 10 TO 15 KT, SHIFTING TO E LATE. SEAS  
3 FT OR LESS. SCATTERED SHOWERS AND ISOLATED  
TSTMS.    
WED
 
E WINDS 10 KT. SEAS 3 FT OR LESS.    
WED NIGHT
 
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
THU
 
E WINDS 10 KT, SHIFTING TO NE IN THE AFTERNOON. SEAS 3 FT  
OR LESS.    
THU NIGHT
 
NE TO E WINDS 10 TO 15 KT. SEAS 3 FT OR LESS.    
FRI
 
W OF 90W, E TO SE WINDS 10 KT IN THE MORNING, BECOMING  
VARIABLE LESS THAN 5 KT. E OF 90W, SE WINDS 10 TO 15 KT. SEAS  
3 FT OR LESS.    
FRI NIGHT
 
E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.  
 

 
 
FORECASTER LANDSEA  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab TPC Page Main Text Page