000
AXPZ20 KNHC 142120
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                       
2205 UTC MON JUL 14 2014

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

...TROPICAL WAVES...                           

TROPICAL WAVE AXIS EXTENDS FROM THE SW GULF OF MEXICO ACROSS 
SOUTHERN MEXICO INTO THE AREA NEAR 16N94W TO 10N94W MOVING W AT 
AROUND 15-20 KT. SCATTERED MODERATE CONVECTION IS N OF 14N E OF 
95W. 

TROPICAL WAVE AXIS EXTENDS FROM 17N99W TO 08N103W MOVING W AT 
AROUND 15 KT. SCATTERED MODERATE AND ISOLATED STRONG CONVECTION 
IS N OF 12N WITHIN 210 NM E OF THE AXIS...AND FROM 10N TO 12N 
BETWEEN 96W AND 105W. 

TROPICAL WAVE AXIS EXTENDS FROM 15N131W TO 08N135W MOVING W AT 
15 KT. ISOLATED CONVECTION IS OCCURRING NEAR THE WAVE AXIS. THIS 
WAVE IS FORECAST TO MOVE W OF 140W ON TUE. THIS WAVE HAS HELPED 
FOR A NORTHWARD PERTURBATION WITHIN THE ITCZ. WEAK LOW PRESSURE 
MAY DEVELOP ALONG THE WAVE DURING THE NEXT 24-48 HOURS.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...  
 
THE MONSOON TROUGH AXIS EXTENDS FROM 09N80W TO 07N107W. THE  
ITCZ AXIS EXTENDS FROM 07N107W TO 06N122W TO 08N134W THEN 
RESUMES FROM 09N137W TO BEYOND 10N140W. SCATTERED MODERATE AND 
ISOLATED STRONG CONVECTION IS WITHIN 360 NM S OF THE AXIS 
BETWEEN 80W AND 91W...WITHIN 150 NM N OF THE AXIS BETWEEN 114W 
AND 120W...WITHIN 210 NM S OF THE AXIS BETWEEN 115W AND 120W... 
AND WITHIN 120 NM NE OF A LINE FROM 06N120W TO 13N130W.
        
...DISCUSSION...                                                
 
HIGH PRESSURE OF 1028 MB CENTERED N OF THE AREA NEAR 37N139W 
EXTENDS A RIDGE SE TO NEAR 24N114W. THE PRESSURE GRADIENT 
BETWEEN THIS AREA OF HIGH PRESSURE AND LOWER PRESSURE IN THE 
VICINITY OF THE ITCZ AND A TROPICAL WAVE ARE HELPING FOR 
MODERATE TO FRESH TRADEWINDS OVER THE WESTERN WATERS. THE FRESH 
TRADEWINDS HAVE HELPED BUILD SEAS UP TO 8-9 FT FROM 12N TO 18N W 
OF 131W. THIS AREA OF 8-9 FT SEAS WILL CONTINUE SHIFTING W WITH 
THE TROPICAL WAVE MOVEMENT.

GAP WINDS...                                                   
GULF OF TEHUANTEPEC...WINDS WILL BE WEAKER DURING THE NEXT FEW 
NIGHTS/EARLY MORNING HOURS COMPARED TO THE PAST SEVERAL DAYS 
WHEN THEY WERE ENHANCED BY TROPICAL WAVES...BUT ARE STILL 
EXPECTED TO PULSE TO MODERATE TO FRESH LEVELS.

GULF OF PAPAGAYO...NE-E WINDS WILL PULSE TO FRESH TO STRONG 
LEVELS LATE TONIGHT INTO EARLY TUE...DIMINISHING THEREAFTER.
                 
$$ 
LEWITSKY