768  
AGXX40 KNHC 221820  
MIMATS  
 
MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
220 PM EDT FRI JUN 22 2018  
 
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 WEAK RIDGE DOMINATES THE GULF WATERS, PRODUCING GENTLE TO  
MODERATE WINDS WITH SEAS OF 3-5 FT OVER THE WESTERN GULF, AND  
SEAS OF 3 FT OR LESS ACROSS THE EASTERN GULF. THE WEAK RIDGING  
WILL PERSIST FROM THE SOUTHEAST GULF TO TEXAS THROUGH EARLY NEXT  
WEEK. SE RETURN FLOW WILL INCREASE OVER THE WESTERN GULF BETWEEN  
THE RIDGE AND WEAK LOW PRESSURE OVER NORTHERN MEXICO STARTING SAT  
NIGHT. AN ADDITIONAL INCREASE IN WINDS TO 20 TO 25 KT CAN BE  
EXPECTED OVERNIGHT JUST NORTH AND WEST OF THE YUCATAN PENINSULA  
AS A DIURNAL SURFACE TROUGH THAT DEVELOPS EACH DAY OVER THE  
YUCATAN PENINSULA MOVES OVER THAT REGION EACH NIGHT.  
 
...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN  
55W AND 64W...  
 
A TROPICAL WAVE ALONG 79W WILL CONTINUE THROUGH THE WESTERN  
CARIBBEAN THROUGH TONIGHT. ANOTHER TROPICAL WAVE IN THE EASTERN  
CARIBBEAN WILL MOVE THROUGH THE CENTRAL CARIBBEAN TONIGHT, THEN  
ACROSS THE WESTERN CARIBBEAN INTO CENTRAL AMERICA THROUGH SUN. A  
THIRD TROPICAL WAVE WILL PASS WEST OF 55W TONIGHT, MOVE ACROSS  
THE EASTERN CARIBBEAN SAT, THE CENTRAL CARIBBEAN SUN, AND THROUGH  
THE WESTERN CARIBBEAN EARLY NEXT WEEK. TRADE WINDS OVER THE  
SOUTH CENTRAL CARIBBEAN WILL STRENGTHEN AND EXPAND IN AREAL  
COVERAGE ACROSS THE BASIN THROUGH EARLY NEXT WEEK AS HIGH  
PRESSURE BUILDS ACROSS THE CENTRAL ATLANTIC. WINDS COULD REACH  
NEAR GALE FORCE ALONG THE COAST OF COLOMBIA BY SAT NIGHT.  
   
..SW N ATLANTIC INCLUDING THE BAHAMAS
 
 
HIGH PRESSURE OVER THE EAST-CENTRAL ATLANTIC WILL SLOWLY SHIFT  
WESTWARD THROUGH SAT NIGHT, THEN REMAIN NEARLY STATIONARY NEAR  
30N55W THROUGH TUE NIGHT, SUPPORTING FRESH TRADE WINDS SOUTH OF  
22N, BECOMING STRONG OFF HISPANIOLA AT NIGHT. AN UPPER TROUGH  
OVER THE WATERS N OF HISPANIOLA WILL SUPPORT SCATTERED  
THUNDERSTORMS EAST OF THE SOUTHERN BAHAMAS FOR THE NEXT COUPLE OF  
DAYS.  
 

 
   
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 LATTO. NATIONAL HURRICANE CENTER.  
 
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