000
AXPZ20 KNHC 230300
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SAT SEP 23 2006

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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0245 UTC.

...ITCZ...
INTERTROPICAL CONVERGENCE ZONE...8N77W 10105W 10N120W 7N140W. 
SCATTERED MODERATE CONVECTION 90 NM WIDE 120W TO 140W.


TROPICAL LOWS...
A 1010 MB LOW NEAR 17N107W IS DRIFTING NW. SCATTERED INCREASING 
CONVECTION IS WITHIN 100 NM OF THE CENTER OVER THE W SEMICIRCLE.

...DISCUSSION...
UPPER LOW PRESSURE CENTERED NEAR 27N128W IS DRIFTING NE. STRONG
SW FLOW IS NOTED BETWEEN THE LOW AND AN UPPER RIDGE FROM CENTRAL 
MEXICO TO 14N120W.  ELY SHEAR ON SRN PERIPHERY OF THE RIDGE IS 
HOLDING CONVECTION ON THE WRN SIDE OF THIS CIRCULATION AND 
CONTINUES TO INHIBIT DEVELOPMENT. 
AT THE SURFACE...CROSS-EQUATORIAL FLOW PERSISTS S OF THE ITCZ. 
SELY FLOW IS AIDING CONVERGENCE TO CONVECTION ALONG ITCZ BETWEEN 
120W AND 135W. A LARGE RIDGE DOMINATES THE AREA W OF 120W.

$$
FET