000
AXPZ20 KNHC 201530
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
1605 UTC SAT JUL 20 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.

...TROPICAL WAVES...                                            
WEAK TROPICAL WAVE FROM 20N113W TO 14N117W MOVING W ABOUT 10 KT. 
ISOLATED SHOWERS ARE NOTED NEAR THE WAVE AXIS.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...        
MONSOON TROUGH EXTENDS FROM 09N84W TO 10N101W TO 08N109W TO 
13N116W TO 13N125W. ITCZ EXTENDS FROM 13N125W TO 09N140W. 
SCATTERED MODERATE ISOLATED STRONG CONVECTION IS WITHIN 60 NM S 
OF THE AXIS BETWEEN 85W AND 90W...AND WITHIN 120 NM EITHER SIDE 
OF THE AXIS BETWEEN 98W AND 102W. 

...DISCUSSION...                                             
UPPER LEVEL CYCLONIC CIRCULATION CENTERED OVER BAJA PENINSULA 
NEAR 28N113W CONTINUES TO TRIGGER SHOWERS N OF 26N E OF 116W.  
ABUNDANT DEEP LEVEL TROPICAL MOISTURE COVERS MOST OF MEXICO AND 
ACROSS CENTRAL AMERICA.

SURFACE RIDGE ASSOCIATED WITH SUBTROPICAL HIGH N OF THE AREA 
EXTENDS N OF 18N W OF 120W. ENHANCED TRADE WINDS S OF THE RIDGE 
IS PRODUCING AN AREA OF 7-8 FT SEAS W OF 135W. GALE FORCE N 
WINDS ALONG THE COAST OF NORTHERN CALIFORNIA WILL INCREASE SEAS 
TO 8-9 FT N OF 29N BETWEEN 124W AND 132W THROUGH AT LEAST MON.

$$ 
MUNDELL