614  
AXNT20 KNHC 021456  
TWDAT  
 
TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
1056 AM EDT THU NOV 2 2017  
 
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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH  
1430 UTC.  
   
.ITCZ/MONSOON TROUGH
 
 
THE MONSOON TROUGH EXTENDS FROM THE AFRICAN COAST NEAR 09N13W TO  
08N18W, WHERE THE INTERTROPICAL CONVERGENCE ZONE BEGINS AND EXTENDS  
TO 08N31W, THEN CONTINUES W OF A SURFACE TROUGH NEAR 06N37W TO  
04N50W. THE SURFACE TROUGH EXTENDS FROM 10N33W TO 03N34W. NUMEROUS  
MODERATE CONVECTION IS FROM 01N TO 11N BETWEEN 30W AND 39W.  
SCATTERED MODERATE CONVECTION IS FROM 02N TO 08N BETWEEN 14W AND  
30W.  
   
..DISCUSSION
 
 
GULF OF MEXICO...  
 
A SURFACE RIDGE AXIS EXTENDS FROM THE FAR NW ATLANTIC WATERS TO  
NORTHERN FLORIDA, THEN TO THE SOUTHWESTERN GULF. THIS RIDGE  
SUPPORTS FAIR WEATHER AND GENTLE TO MODERATE WINDS OVER THE  
ENTIRE GULF BASIN TODAY. EXPECT LITTLE CHANGE THROUGH FRIDAY.  
 
CARIBBEAN SEA...  
 
A SURFACE TROUGH CONTINUES TO MOVE W ACROSS THE NW BASIN WITH  
AXIS EXTENDING FROM 21N85W TO NEAR THE HONDURAS COAST AT 16N87W.  
SCATTERED SHOWERS ARE WITHIN 60 NM OF THE TROUGH. ANOTHER TROUGH  
IS JUST EAST OF THE COASTS OF NICARAGUA AND COSTA RICA FROM  
14N83W TO 09N82W. SCATTERED MODERATE ISOLATED STRONG CONVECTION  
ARE S OF 13N W OF 81W. MOIST MID TO UPPER LEVEL FLOW AROUND THE  
PERIPHERY OF A UPPER LEVEL RIDGE CENTERED OVER CUBA SUPPORTS  
ISOLATED MODERATE CONVECTION FROM 13N TO 19N BETWEEN 74W AND 85W.  
SURFACE RIDGING NORTH OF THE BASIN SUPPORTS MAINLY MODERATE E TO  
NE WINDS OVER THE CARIBBEAN TODAY, EXCEPT LOCALLY FRESH NEAR THE  
COAST OF COLOMBIA AND OVER THE LEE OF CUBA. OVER THE NEXT 24 HOURS  
THE NW CARIBBEAN SURFACE TROUGH WILL MOVE INLAND OVER THE  
YUCATAN. THE RIDGE TO THE NORTH WILL WEAKEN SLIGHTLY WHICH WILL  
RESULT IN WINDS DECREASING OVER MUCH OF THE CARIBBEAN BY LATE  
FRIDAY.  
   
..HISPANIOLA
 
 
A SURFACE TROUGH AND ENHANCED MID TO UPPER LEVEL MOISTURE  
SUPPORTS SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS OVER THE  
ISLAND. THIS PATTERN WILL CONTINUE THROUGH FRIDAY.  
 
ATLANTIC OCEAN...  
 
A PAIR OF SURFACE TROUGHS, THE REMNANTS OF A FRONT,EXTEND OVER  
THE W ATLANTIC FROM 31N71W TO 26N70W, AND FROM 25N70W TO 19N71W.  
SCATTERED SHOWERS ARE WITHIN 90 NM OF THE TROUGH. FARTHER EAST, A  
1014 MB LOW IS CENTERED NEAR 28N54W WITH A SURFACE TROUGH  
EXTENDING FROM THE LOW TO 22N57W. THIS LOW IS CENTERED UNDERNEATH  
A SHARP UPPER TROUGH, SUPPORTING SCATTERED MODERATE CONVECTION  
FROM 13N TO 31N BETWEEN 43W AND 51W. A COLD FRONT EXTENDS INTO THE  
AREA OF DISCUSSION NEAR 31N20W TO 29N26W TO 31N33W. NO  
SIGNIFICANT CONVECTION IS NOTED WITH THIS FRONT. OVER THE NEXT 24  
HOURS THE W ATLANTIC TROUGHS WILL DRIFT WESTWARD. THE LOW OVER THE  
CENTRAL ATLANTIC WILL DRIFT SW AND WEAKEN. THE FRONT WILL BEGIN  
TO DISSIPATE.  
 
FOR ADDITIONAL INFORMATION PLEASE VISIT  
HTTP://WWW.HURRICANES.GOV/MARINE  
 

 
LATTO  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab TPC Page Main Text Page