406  
FZNT25 KNHC 210323  
OFFN04  
 
NAVTEX MARINE FORECAST  
NWS NATIONAL HURRICANE CENTER MIAMI, FL  
1123 PM EDT THU JUL 16 2026  
 
...PLEASE REFER TO COASTAL WATERS FORECASTS (CWF) AVAILABLE  
THROUGH NOAA WEATHER RADIO AND OTHER MEANS FOR DETAILED  
COASTAL WATERS FORECASTS...  
 
SOUTHEAST GULF OF AMERICA  
   
SYNOPSIS
 
AS OF 11 PM EDT, RECENTLY UPGRADED TROPICAL STORM BERTHA  
IS LOCATED OVER THE NE GULF DRIFTING ERRATICALLY. IT IS FORECAST TO  
ASSUME A NORTHWESTWARD MOTION TONIGHT AND TUE MORNING, FOLLOWED BY A  
WEST-NORTHWESTWARD OR WESTWARD MOTION. ON THE FORECAST TRACK, BERTHA  
WILL MOVE NEAR OR ALONG THE NORTHERN GULF COAST DURING THE NEXT  
SEVERAL DAYS. MEANWHILE, ATLANTIC HIGH PRESSURE WILL EXTEND WESTWARD  
TO JUST E OF FLORIDA THROUGH WED, THEN EXTEND WESTWARD TO THE  
CENTRAL GULF AFTERWARD.  
   
OVERNIGHT
 
S OF 24N, VARIABLE WINDS LESS THAN 5 KT, BECOMING SE  
TO S 10 KT EARLY IN THE MORNING. N OF 24N, S TO SW WINDS 10 TO 15  
KT. SEAS 4 TO 6 FT IN NW TO N SWELL.    
TUE
 
S TO SW WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
TUE NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
WED
 
E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
WED NIGHT
 
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
 
NE TO E WINDS 10 TO 15 KT. SEAS 3 TO 5 FT.    
FRI
 
E WINDS 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
E WINDS 10 KT. SEAS 3 TO 4 FT.    
SAT
 
S OF 24N, SE WINDS 10 KT, SHIFTING TO NE TO E EARLY IN THE  
EVENING. N OF 24N, E TO SE WINDS 10 KT IN THE LATE MORNING AND EARLY  
AFTERNOON, BECOMING VARIABLE LESS THAN 5 KT. SEAS 2 TO 4 FT.   
SAT NIGHT
 
NE TO E WINDS 10 KT, SHIFTING TO SE TO S EARLY IN THE  
MORNING. SEAS 2 TO 4 FT.  
 
WITHIN 200 NM EAST OF THE COAST OF FLORIDA  
   
SYNOPSIS
 
A SURFACE TROUGH LOCATED OVER THE CENTRAL ATLANTIC  
FROM 27N56W TO 19N58W WILL MOVE WESTWARD REACHING NEAR 70W BY WED  
AFTERNOON AND TO NEAR 75W BY THU MORNING. MODERATE TO FRESH WINDS  
AND MODERATE SEAS ARE EXPECTED ON EITHER SIDE OF THE TROUGH AXIS.  
FRESH TO LOCALLY STRONG TRADE WINDS ARE EXPECTED OFFSHORE  
HISPANIOLA, INCLUDING APPROACHES TO THE WINDWARD PASSAGE THROUGH THE  
FORECAST PERIOD. MODERATE OR WEAKER WINDS ALONG WITH MODERATE SEAS  
ARE FORECAST ELSEWHERE E OF THE BAHAMAS THROUGH FRI, EXCEPT S OF 23N  
E OF ABOUT 77W WHERE MOSTLY FRESH TRADES ARE EXPECTED THROUGH THE  
PERIOD.  
   
OVERNIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE
 
SE TO S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
TUE NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
WED
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT, SUBSIDING TO 2 TO 3 FT.   
WED NIGHT
 
E TO SE WINDS 10 TO 15 KT. SEAS 2 TO 4 FT.    
THU
 
E WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.    
THU NIGHT
 
E TO SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
FRI
 
SE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.    
FRI NIGHT
 
SE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.    
SAT
 
S WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.   
SAT NIGHT
 
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT.  
 
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