172  
AXNT20 KNHC 060505  
TWDAT  
 
TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
105 AM EST TUE FEB 6 2018  
 
TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA, CENTRAL AMERICA  
GULF OF MEXICO, CARIBBEAN SEA, NORTHERN SECTIONS OF SOUTH  
AMERICA, AND ATLANTIC OCEAN TO THE AFRICAN COAST FROM THE  
EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED ON SATELLITE  
IMAGERY, WEATHER OBSERVATIONS, RADAR AND METEOROLOGICAL ANALYSIS.  
 
BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH  
0530 UTC.  
   
..SPECIAL FEATURES
 
 
CARIBBEAN SEA GALE WARNING: A TIGHT SURFACE PRESSURE GRADIENT  
BETWEEN A RIDGE IN THE NORTH ATLANTIC OCEAN AND LOWER PRESSURE  
IN NORTHWESTERN SOUTH AMERICA WILL CONTINUE TO SUPPORT MINIMAL  
GALE-FORCE WINDS NEAR THE COAST OF COLOMBIA THE NEXT FEW DAYS  
DURING LATE NIGHT AND EARLY MORNING HOURS. PLEASE READ LATEST  
NHC HIGH SEAS FORECAST UNDER AWIPS/WMO HEADERS MIAHSFAT2/FZNT02  
KNHC FOR MORE DETAILS.  
   
..MONSOON TROUGH/ITCZ
 
 
 
THE MONSOON TROUGH EXTENDS FROM COASTAL LIBERIA NEAR 06N10W TO  
04N16W. THE ITCZ CONTINUES FROM 04N16W ACROSS THE EQUATOR TO THE  
COAST OF BRAZIL NEAR 03S40W. THERE IS NO SIGNIFICANT CONVECTION  
ASSOCIATED WITH THE CONVERGENCE ZONE.  
   
..DISCUSSION
 
 
GULF OF MEXICO...  
 
A DISSIPATING STATIONARY FRONT SNAKES ACROSS THE GULF OF MEXICO  
FROM SOUTHERN FLORIDA TO TEXAS. SEAS ARE 3 TO 5 FT ACROSS THE  
REGION. THE FRONT WILL LIFT NORTHWARD DISSIPATE AND ALONG THE  
NORTHERN GULF COAST EARLY TUE. A COLD FRONT WILL MOVE INTO THE  
NORTHWEST GULF LATE WED. FRESH TO STRONG NORTHERLY WINDS AND  
SEAS BUILDING TO 8 FT WILL FOLLOW THE FRONT, MAINLY OFF THE  
COAST OF MEXICO, AS THE FRONT REACHES FROM CENTRAL FLORIDA TO  
THE SOUTHWEST GULF BY LATE THU, THEN LIFT NORTHWARD AS A WEAK  
WARM FRONT OVER THE WESTERN GULF FRI.  
 
CARIBBEAN SEA...  
 
PLEASE READ THE SPECIAL FEATURES SECTION FOR DETAILS REGARDING  
GALE-FORCE WIND CONDITIONS NEAR THE COAST OF COLOMBIA.  
 
HIGH PRESSURE NORTH OF THE AREA WILL CONTINUE TO SUPPORT STRONG  
WINDS IN THE SOUTH-CENTRAL CARIBBEAN THROUGH WED, WITH HIGHEST  
WINDS AND SEAS NEAR COLOMBIA. SEAS WILL BE 8 TO 12 FT OVER MUCH  
OF THE SOUTH CENTRAL AND SW CARIBBEAN, AND 5 TO 7 FT ELSEWHERE.  
MOSTLY DRY, STABLE CONDITIONS PREVAIL ACROSS THE BASIN. PATCHES  
OF SHALLOW MOISTURE MAY SUPPORT ISOLATED PASSING SHOWERS SOUTH  
OF HISPANIOLA. THE CURRENT SYNOPTIC PATTERN WILL SUPPORT FRESH  
TO STRONG WINDS OFF COLOMBIA, IN THE WINDWARD PASSAGE AND SOUTH  
OF HISPANIOLA THROUGH FRI. HIGH PRESSURE BUILDING OVER THE  
CENTRAL ATLC WILL SUPPORT FRESH TRADES EAST OF THE LEEWARD AND  
WINDWARD ISLANDS, ACCOMPANIED BY E-NE SWELL IN EXCESS OF 8 FT.  
 
ATLANTIC OCEAN...  
 
A COLD FRONT EXTENDS FROM 32N67W SW TO THE FLORIDA KEYS WITH  
ISOLATED SHOWERS NORTHWEST OF THE FRONT. THE FRONT WILL WEAKEN  
AND STALL FROM 28N65W TO THE STRAIGHTS OF FLORIDA TUESDAY, THEN  
DISSIPATE WED. HIGH PRESSURE BUILDING BEHIND THE FRONT WILL  
SUPPORT FRESH TO LOCALLY STRONG E WINDS SOUTH OF 22N THE NEXT  
FEW DAYS. A SURFACE TROUGH NORTH OF PUERTO RICO WILL DRIFT  
WESTWARD WITHOUT MUCH CONVECTION. THE AZORES HIGH EXTENDS A  
RIDGE WEST-SOUTHWESTWARD ACROSS THE CENTRAL AND EASTERN ATLC,  
WHERE LATEST SCATTEROMETER DATA SHOW MODERATE TO FRESH WINDS.  
 
FOR ADDITIONAL INFORMATION PLEASE VISIT  
HTTP://WWW.HURRICANES.GOV/MARINE  
 

 
MUNDELL  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab TPC Page Main Text Page