135  
AGXX40 KNHC 231835  
MIMATS  
 
MARINE WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
226 PM EDT MON APR 23 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 COLD FRONT EXTENDS FROM THE FLORIDA PANHANDLE NEAR APALACHICOLA  
TO 26N87W TO NEAR TUXPAN, MEXICO. GENTLE TO MODERATE NORTHERLY  
WINDS FOLLOW THE FRONT, WITH SEAS OF 3-5 FT BASED ON BUOY  
OBSERVATIONS AND ALTIMETER DATA. THE COLD FRONT WILL REACH FROM  
NEAR TAMPA BAY TO THE EASTERN BAY OF CAMPECHE TUE MORNING, AND  
WILL BE ACROSS THE STRAITS OF FLORIDA AND THE SE GULF BY WED  
MORNING WHILE IT WILL REMAIN NEARLY STATIONARY OVER THE EASTERN  
BAY OF CAMPECHE. THE THE FRONT IS FORECAST TO MOVE SE OF THE  
AREA ON WED. WEAK HIGH PRES WILL BUILD ACROSS THE AREA BEHIND  
THE FRONT. ANOTHER WEAK COLD FRONT IS EXPECTED TO MOVE TO JUST  
OFFSHORE THE TEXAS COAST EARLY ON THU. THIS NEXT COLD FRONT IS  
EXPECTED TO REACH THE EASTERN GULF BY FRI NIGHT.  
 
...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN  
55W AND 64W...  
 
ATLANTIC HIGH PRESSURE WILL MAINTAIN FRESH TO STRONG TRADES NEAR  
THE COAST OF COLOMBIA THROUGH WED WITH SEAS OF 8-11 FT. MAINLY  
MODERATE TO FRESH WINDS ARE EXPECTED THE REMAINDER OF THE  
FORECAST PERIOD. A WEAKENING COLD FRONT WILL REACH NW CUBA AND  
THE YUCATAN PENINSULA ON WED. A WEAK HIGH PRES CENTER WILL  
BECOME ESTABLISHED OVER THE NW CARIBBEAN WED THROUGH FRI NIGHT,  
AND SUPPORT ANTICYCLONIC FLOW OF GENTLE WINDS THERE.  
   
..SW N ATLANTIC INCLUDING THE BAHAMAS
 
 
A STATIONARY FRONT ENTERS THE AREA NEAR 27N65W, THEN CONTINUES  
WESTWARD TO THE NW BAHAMAS. A WARM FRONT EXTENDS FROM THE NW  
BAHAMAS TO A 1014 MB LOW PRESSURE LOCATED OVER THE STATE OF  
GEORGIA. SCATTERED SHOWERS AND TSTMS ARE ASSOCIATED WITH THE WARM  
FRONT AFFECTING THE WATERS N OF 27N. THE WARM FRONT WILL CONTINUE  
TO LIFT NORTHWARD, WITH STRONG TO NEAR GALE FORCE SOUTHEAST FLOW  
DEVELOPING ACROSS THE FORECAST WATERS NORTH OF THE BAHAMAS THIS  
AFTERNOON AND TONIGHT, IN ASSOCIATION WITH THE SURFACE LOW  
FORECAST TO MOVE EASTWARD INTO THE ATLANTIC OCEAN ON TUE. IT WILL  
PUSH A WEAK COLD FRONT ACROSS THE NORTHWEST PORTION TUE THROUGH  
WED, AND ACROSS THE NORTH-CENTRAL WATERS WED NIGHT AND THU WHILE  
IT SLOWS DOWN. ANOTHER WEAK COLD FRONT WILL MOVE OVER THE FAR  
NORTHWEST PORTION WED NIGHT AND THU BEFORE IT ALSO SLOWS DOWN THU  
NIGHT AND FRI.  
 

 
   
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 GR. NATIONAL HURRICANE CENTER.  
 
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