000
AXPZ20 KNHC 300927
TWDEP 

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

...SPECIAL FEATURE...
TROPICAL STORM DALILA CENTERED AT 13.7N 103.0W OR 260 NM SW OF
ACAPULCO MEXICO WITH MINIMUM CENTRAL PRES 1003 MB...MOVING
N AT 9 KT. EXPECTED TO CONTINUE ITS  INTENSIFICATION TO 60 KT
TUE NIGHT. THE CURRENT TRACKE TAKES N CLOSER TO AND THREATEN THE
COAST OF MEXICO WITHIN NEXT 24 HRS. OVERALL ENVIRONMENT REMAINS
FAVORABLE FOR CONTINUED DEVELOPMENT. NUMEROUS STRONG CONVECTION
IS WITHIN 100 NM NE SEMICIRCLE. SEE LATEST ADVISORY UNDER AFOS
HEADER MIATCMEP4 OR WMO HEADER WTPPZ24 KNHC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 

MONSOON TROUGH FROM 12N105W TO 10N120W. ITCZ 10N120W TO 11N130W
TO 7N140W. SCATTERED MODERATE TO STRONG CONVECTION FROM 8N-15N
BETWEEN 93W-96W.

...DISCUSSION...
UPPER LEVEL TROUGH OVER THE FAR NW PORTION OF THE DISCUSSION AREA
WITH AXIS FROM 32N138W TO A CYCLONIC CIRCULATION CENTERED NEAR
22N136W. UPPER LEVEL RIDGE EXTENDS FROM ANTICYCLONIC CIRCULATION 
NEAR 13N124W TO 26N129W TO ANOTHER ANTICYCLONIC CIRCULATION NEAR 
31N128W. SUBSIDING AIR MASS ALOFT KEEPS REGION N OF 15N W OF 
125W VERY DRY AND STABLE. A BROAD UPPER LEVEL CYCLONIC 
CIRCULATION CENTERED NEAR 21N112W WITH INVERTED TROUGH FROM THE 
CIRCULATION NW TO 32N123W.

REMNANT LOW PRES...PREVIOUSLY COSME...NEAR 22N136W 1010 MB. 
WINDS ARE 20 KT OR LESS WITH SEAS TO 9 FT IN MIXED SW AND NW SWELL
N OF 21N W OF 134W. LATEST SATELLITE IMAGERY STILL SHOWS STILL A
GOOD CIRCULATION BUT NO CONVECTION.

$$
DGS