843  
AXNT20 KNHC 011023  
TWDAT  
 
TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL  
623 AM EDT WED NOV 1 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH  
1015 UTC.  
   
.ITCZ/MONSOON TROUGH
 
 
THE MONSOON TROUGH EXTENDS FROM THE AFRICAN COAST NEAR 11N14W TO  
09N17W. THE INTERTROPICAL CONVERGENCE ZONE EXTENDS FROM 09N17W TO  
06N30W TO 07N54W. SCATTERED MODERATE CONVECTION IS ALONG THE  
COAST OF W AFRICA FROM 08N-12N BETWEEN 14W-18W. ISOLATED MODERATE  
CONVECTION IS FROM 02N-08N BETWEEN 18W-39W.  
   
..DISCUSSION
 
 
GULF OF MEXICO...  
 
A 1026 MB HIGH IS CENTERED OFF THE COAST OF NEW JERSEY NEAR  
40N74W. SURFACE RIDGING EXTENDS SW TO THE NE GULF OF MEXICO. THE  
W GULF HAS 15-20 KT SE SURFACE FLOW. A QUASI-STATIONARY FRONT IS  
JUST INLAND OF THE TEXAS COAST. SCATTERED SHOWERS ARE NOTED ON  
RADAR OVER THE W GULF N OF 25N AND W OF 93W. MOSTLY FAIR WEATHER  
IS OVER THE REMAINDER OF THE GULF. IN THE UPPER LEVELS, ZONAL FLOW  
PREVAILS WITH STRONG SUBSIDENCE. EXPECT SHOWERS TO PERSIST OVER  
THE NW GULF FOR THE NEXT 24 HOURS. ALSO EXPECT THE TEXAS FRONT TO  
LIFT N AND DISSIPATE OVER THE NEXT 24 HOURS.  
 
CARIBBEAN SEA...  
 
A STATIONARY FRONT EXTENDS FROM N HISPANIOLA AT 20N70W TO JAMAICA  
AT 18N77W. SCATTERED SHOWERS ARE WITHIN 90 NM OF THE FRONT.  
ELSEWHERE, A TROUGH IS OVER THE W CARIBBEAN FROM 17N80W TO  
10N83W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS NW OF  
THE TROUGH FROM 15N-18N BETWEEN 82W-85W. IN THE UPPER LEVELS, A  
LARGE UPPER LEVEL HIGH IS CENTERED JUST N OF HISPANIOLA NEAR  
21N73W. STRONG SUBSIDENCE IS OVER THE E CARIBBEAN AND THE S  
CARIBBEAN. EXPECT THE FRONT TO DISSIPATE TO A SHEAR LINE OVER THE  
NEXT 24 HOURS. ALSO EXPECT MORE SHOWERS OVER THE W CARIBBEAN AND  
CENTRAL AMERICA OVER THE NEXT 24 HOURS.  
   
..HISPANIOLA
 
 
SCATTERED SHOWERS ARE OVER THE ISLAND DUE TO THE STATIONARY FRONT.  
EXPECT SHOWERS FOR THE NEXT 24 HOURS.  
 
ATLANTIC OCEAN...  
 
A STATIONARY FRONT IS OVER THE W ATLANTIC FROM 31N65W TO N  
HISPANIOLA AT 20N70W. SCATTERED SHOWERS ARE WITHIN 90 NM OF THE  
FRONT. A 1012 MB LOW IS CENTERED OVER THE CENTRAL ATLANTIC NEAR  
29N50W. A SURFACE TROUGH EXTENDS S FORM THE LOW TO 26N50W TO  
21N57W. OF NOTE IN THE UPPER LEVELS, AN UPPER LEVEL LOW IS  
CENTERED OVER THE CENTRAL ATLANTIC NEAR 27N48W. UPPER LEVEL  
DIFFLUENCE IS SE OF THIS LOW. EXPECT THE FRONT TO DRIFT W OVER THE  
NEXT 24 HOURS WITH SHOWERS.  
 
FOR ADDITIONAL INFORMATION PLEASE VISIT  
HTTP://WWW.HURRICANES.GOV/MARINE  
 

 
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