596  
AXNT20 KNHC 070542 CCA  
TWDAT  
 
TROPICAL WEATHER DISCUSSION...CORRECTED  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
705 PM EST TUE FEB 6 2018  
 
CORRECTED GULF OF MEXICO SECTION  
 
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  
2345 UTC.  
   
..SPECIAL FEATURES
 
 
CARIBBEAN SEA GALE WARNING: THE COMBINATION OF 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 AXIS EXTENDS FROM COASTAL LIBERIA NEAR 06N09W  
TO 03N15W TO 03N22W, WHERE SCATTEROMETER DATA INDICATES THE ITCZ  
CONTINUES AND DIPS TO BELOW THE EQUATOR NEAR 30W. SCATTERED  
MODERATE CONVECTION IS WITHIN 60 NM OF THE AXIS BETWEEN 21W-26W,  
AND WITHIN 30 NM OF THE AXIS BETWEEN 13W-16W.  
   
..DISCUSSION
 
 
GULF OF MEXICO...CORRECTED  
 
HIGH PRESSURE EXTENDING FROM THE WESTERN ATLANTIC STRETCHES  
SOUTHWESTWARD ACROSS NORTHERN FLORIDA AND TO THE N CENTRAL  
GULF. THIS FEATURE PRESENTLY CONTROLS THE WIND REGIME ACROSS THE  
AREA. THE BUOYS ALONG WITH RECENT ASCAT DATA INDICATE LIGHT TO  
MODERATE RETURN FLOW OVER THE AREA. AS OF 18Z, A WARM FRONT IS  
OVER EASTERN TEXAS. ISOLATED SHOWERS ARE OVER PORTIONS OF THE  
EASTERN GULF, AND STRAITS OF FLORIDA. THE WARM FRONT WILL LIFT  
NORTHWARD TONIGHT AS A COLD FRONT APPROACHES EASTERN TEXAS, AND  
MOVES OUT OVER THE NW GULF BY EARLY ON WED.  
EXPECT AREAS OF DENSE FOG TO AGAIN FORM OVER PORTIONS OF THE NW  
GULF TONIGHT. THE AFOREMENTIONED COLD FRONT WILL BE FOLLOWED BY  
FRESH TO STRONG NORTHERLY WINDS AND SEAS BUILDING TO 8 FT, MAINLY  
ALONG THE NORTHERN GULF AND OFF THE COAST OF MEXICO AS THE FRONT  
REACHES FROM CENTRAL FLORIDA TO THE SOUTHWEST GULF BY THU EVENING.  
THE FRONT THEN WILL LIFT NORTHWARD AS A WEAK WARM FRONT OVER THE  
WESTERN GULF ON FRI.  
 
CARIBBEAN SEA...  
 
PLEASE SEE SPECIAL FEATURES SECTION ABOVE FOR DETAILS REGARDING  
GALE-FORCE WIND CONDITIONS NEAR THE COAST OF COLOMBIA.  
 
HIGH PRESSURE N OF THE AREA WILL CONTINUE TO SUPPORT FRESH TO  
STRONG WINDS IN THE CENTRAL AND EASTERN CARIBBEAN THROUGH SUN,  
WITH HIGHEST WINDS AND SEAS NEAR COLOMBIA. SEAS WILL BE 10-16 FT  
OVER MUCH OF THE SOUTH-CENTRAL AND SW CARIBBEAN, AND UP TO 9 FT  
ELSEWHERE. STABLE ENVIRONMENTAL CONDITIONS ARE EXPECTED TO PREVAIL  
ACROSS THE BASIN, HOWEVER PATCHES OF SHALLOW MOISTURE MAY SUPPORT  
ISOLATED PASSING SHOWERS SOUTH OF 18N. THE CURRENT SYNOPTIC  
PATTERN WILL ALSO SUPPORT FRESH TO STRONG WINDS IN THE WINDWARD  
PASSAGE, S OF HISPANIOLA AND IN THE LEE OF CUBA THROUGH THE  
WEEKEND.  
 
ATLANTIC OCEAN...  
 
A STATIONARY FRONT CONTINUES TO WEAKEN FROM NEAR 32N64W  
SOUTHWESTWARD TO THE NW BAHAMAS. THE FRONT WILL WEAKEN TO A  
TROUGH LATE TONIGHT OR EARLY WED, BEFORE DISSIPATING LATER ON WED.  
HIGH PRESSURE BUILDING BEHIND THE FRONT WILL SUPPORT FRESH TO  
LOCALLY STRONG E WINDS SOUTH OF 24N IN THE APPROACHES OF THE  
WINDWARD PASSAGE THROUGH THU NIGHT. THESE WINDS IN THE SW N ATLC  
WILL EXPAND NORTHWARD TO 25N DURING THE WEEKEND. OTHERWISE, A  
SURFACE TROUGH IS ANALYZED AHEAD OF THE FRONT ALONG A POSITION  
FROM NEAR 31N60W TO 25N66W TO INLAND N CENTRAL HISPANIOLA NEAR  
19N71W. ISOLATED SHOWERS ARE WITHIN 60 NM EITHER SIDE OF THE  
TROUGH AXIS N OF 28N. THE AZORES HIGH PRESSURE SYSTEM EXTENDS A  
RIDGE WEST-SOUTHWESTWARD ACROSS THE CENTRAL AND EASTERN ATLC,  
WHERE LATEST SCATTEROMETER DATA SHOWED MAINLY MODERATE TO FRESH  
WINDS.  
 
FOR ADDITIONAL INFORMATION PLEASE VISIT  
HTTP://WWW.HURRICANES.GOV/MARINE  
 

 
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