867  
AGXX40 KNHC 111810  
MIMATS  
 
MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
210 PM EDT TUE MAY 11 2021  
 
MARINE WEATHER DISCUSSION FOR THE GULF OF MEXICO, CARIBBEAN SEA,  
AND TROPICAL NORTH ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W  
AND THE SOUTHWEST NORTH ATLANTIC INCLUDING THE BAHAMAS  
   
..GULF OF MEXICO
 
 
A RIDGE WILL DOMINATE THE GULF WATERS TODAY PRODUCING MODERATE  
TO LOCALLY FRESH SOUTHERLY WINDS ACROSS THE WESTERN HALF OF THE  
GULF AND GENTLE TO MODERATE E TO SE WINDS OVER THE EASTERN HALF.  
A SURFACE TROUGH WILL DEVELOP OVER THE YUCATAN PENINSULA EACH  
EVENING AND DISSIPATE OVER THE SW GULF BY MORNING. MODERATE TO  
FRESH EASTERLY WINDS WILL BE ASSOCIATED WITH THIS TROUGH. A  
FRONTAL BOUNDARY WILL LINGER ACROSS THE NORTHERN GULF COAST  
THROUGH TONIGHT. BUILDING HIGH PRESSURE ACROSS THE SE CONUS WILL  
PUSH A LATE-SEASON COLD FRONT ACROSS THE GULF ON WED, AND IT IS  
EXPECTED TO EXTEND ACROSS THE STRAITS OF FLORIDA AND THE  
SOUTHERN GULF BY LATE FRI. FRESH TO STRONG NORTHERLY WINDS WILL  
FOLLOW THE FRONT.  
 
...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN  
55W AND 64W...  
 
HIGH PRESSURE LOCATED N OF THE CARIBBEAN SEA COMBINED WITH THE  
COLOMBIAN LOW WILL SUPPORT FRESH TO STRONG WINDS OVER THE SOUTH-  
CENTRAL CARIBBEAN THROUGH FRI. FRESH TO STRONG WINDS ARE ALSO  
EXPECTED IN THE GULF OF HONDURAS TONIGHT AND AGAIN WED NIGHT. A  
MOISTURE SURGE WILL CONTINUE TO AFFECT PARTS OF THE EAST AND  
CENTRAL CARIBBEAN TODAY WHILE GRADUALLY DIMINISHING.  
   
..SW N ATLANTIC INCLUDING THE BAHAMAS
 
 
A RIDGE DOMINATES THE FORECAST WATERS. A COLD FRONT WILL MOVE  
SOUTHWARD ACROSS THE WESTERN ATLANTIC ON WED. WEAK LOW PRESSURE  
IS EXPECTED TO DEVELOP ALONG THE FRONTAL BOUNDARY ALLOWING THE  
FRONT TO MOVE ACROSS THE NORTHERN FORECAST WATERS THU AND FRI,  
REACHING THE WATERS S OF 27N ON SAT. HIGH PRESSURE WILL FOLLOW  
THE FRONT.  
 

 
   
WARNINGS
 
ANY CHANGES IMPACTING COASTAL NWS OFFICES WILL BE  
COORDINATED THROUGH AWIPS II COLLABORATION CHAT, OR BY  
TELEPHONE:  
   
GULF OF MEXICO
 
 
NONE.  
 
.CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN  
55W AND 64W...  
NONE.  
   
SW N ATLANTIC INCLUDING THE BAHAMAS
 
 
NONE.  
 

 
 
*FOR DETAILED ZONE DESCRIPTIONS, PLEASE VISIT:  
HTTP://WWW.NHC.NOAA.GOV/ABOUTTAFBPROD.SHTML#OWF  
 
NOTE: GRIDDED MARINE FORECASTS ARE AVAILABLE IN THE NATIONAL  
DIGITAL FORECAST DATABASE (NDFD) AT:  
HTTP://WWW.NHC.NOAA.GOV/MARINE/GRIDS.PHP  
 
FOR ADDITIONAL INFORMATION, PLEASE VISIT:  
HTTP://WWW.NHC.NOAA.GOV/MARINE  
 

 
 
.FORECASTER AL. NATIONAL HURRICANE CENTER.  
 
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