000
AXPZ20 KNHC 010916
TWDEP 

TROPICAL WEATHER DISCUSSION                                     
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
1005 UTC MON JUL 01 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...SPECIAL FEATURE...
TROPICAL STORM DALILA AT 17.2N 105.1W AT 0900 UTC WITH MINIMUM 
CENTRAL PRES 1001 MB MOVING NW AT 8 KT. MAXIMUM SUSTYAINED WINDS 
ARE 40 GUST TO 50 KT. DALILA IS EXPECTED TO INTENSIFY SLOWLY BUT 
REMAIN A TROPICAL STORM.  DALILA HAS BEGUN ITS TURN TO THE NW 
RUNNING PARALLEL TO THE COAST OF MEXICO AND EXPECTED TO FINALLY 
TURN W ALONG 19N AWAY FROM LAND MON NIGHT. NUMEROUS STRONG 
CONVECTION IS WITHIN 170 NM N AND 60 NM SEMICIRCLES OF TROPICAL 
STORM DALILA.  

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
MONSOON TROUGH 13N109W TO 11N135W. ITCZ 11N135W TO 9N140W.  
SCATTERED MODERATE TO STRONG CONVECTIONWITHIN 180 NM S OF AXIS W 
OF 132W.

...DISCUSSION...
UPPER LEVEL TROUGH OVER THE FAR NW PORTION OF THE DISCUSSION 
AREA WITH AXIS FROM 32N135W TO 16N140W. UPPER LEVEL RIDGE 
EXTENDS FROM ANTICYCLONIC CIRCULATION NEAR 10N131W TO 30N128W.  
SUBSIDING AIR MASS ALOFT KEEPS REGION N OF 15N W OF 125W VERY 
DRY AND STABLE. AN UPPER LEVEL CYCLONIC CIRCULATION CENTERED 
NEAR 21N118W. ANOTHER UPPER LEVEL ANTICYCLONIC CIRCULATION IS 
OVER TROPICAL STORM DALILA...WITH DIFFLUENT FLOW ALOFT PROVIDING 
GOOD OUT FLOW FOR THE STORM.

SURFACE LOW PRES...PREVIOUSLY COSME...NEAR 23N140W 1011 MB. 
LATEST SATELLITE IMAGERY STILL SHOWS STILL A GOOD CIRCULATION 
BUT NO CONVECTION. THE LOW IS FORECAST TO MOVE W OF THE 
DISCUSSION AREA LATER TODAY.

$$
DGS