000
AXPZ20 KNHC 302059
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC FRI AUG 30 2013

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.

...SPECIAL FEATURES... 

LOW PRESSURE 1008 MB IS CENTERED NEAR 18N115W. SCATTERED 
MODERATE TO STRONG CONVECTION WAS NOTED WITHIN 120 NM E AND 240 
NM SW QUADRANTS. RECENT 1736 ASCAT PASS DEPICTED 30 KT WINDS IN 
THE EASTERN QUADRANT OF THE LOW. THERE IS CURRENTLY A MEDIUM 
CHANCE FOR THE LOW TO DEVELOP INTO A TROPICAL CYCLONE IN THE 
NEXT 48 HOURS.  
                                
..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...               

THE MONSOON TROUGH EXTENDS FROM 09N84W TO 11N93W TO 08N106W. IT 
RESUMES AT LOW PRES NEAR 17N115W 1008 MB TO 13N121W TO LOW PRES 
NEAR 12N128W 1008 MB TO LOW PRES NEAR 12N135W 1008 MB TO BEYOND 
10N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION WAS 
NOTED FROM 05N TO 09N BETWEEN 81W AND 91W. 

...DISCUSSION...

A 1021 MB HIGH IS CENTERED NEAR 29N136W. REMNANT LOW OF JULIETTE 
CENTERED NEAR 28N118W IS OVER COOLER WATERS AND DEVOID OF DEEP 
CONVECTION. THE LOW WILL CONTINUE TO SPIN DOWN AND WILL 
DISSIPATE DURING THE OVERNIGHT HOURS. OTHERWISE...THERE ARE 
THREE LOW PRESSURE CENTERS OVER THE FORECAST AREA. THE FIRST LOW 
PRESSURE CENTER WAS DISCUSSED IN THE SPECIAL FEATURES SECTION 
ABOVE. THE OTHER TWO LOW PRESSURE CENTERS ARE EMBEDDED WITHIN 
THE MONSOON TROUGH. THERE IS NO SIGNIFICANT CONVECTION 
ASSOCIATED WITH EITHER OF THESE TWO LOW PRESSURE CENTERS. THE 
PRESSURE GRADIENT BETWEEN HIGH PRESSURE MENTIONED ABOVE AND THE 
TWO LOW PRESSURE CENTERS IS MAINTAINING FRESH TRADEWIND FLOW TO 
THE NORTH OF THE FEATURES. 

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AL