000
AXPZ20 KNHC 290305
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC FRI SEP 29 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 
0230 UTC.

ITCZ...
AXIS IS CENTERED ALONG 9N80W 7N100W 8N120W 8N140W. SCATTERED 
MODERATE CONVECTION 120 NM WIDE 80W TO 85W. SCATTERED MODERATE 
CONVECTION 150 NM WIDE 110W TO 125W.

TROPICAL WAVES/LOWS...
A TROPICAL WAVE IS ALONG 85W N OF 3N MOVING W 15 KT. SCATTERED 
CONVECTION OVER CENTRAL AMERICA AND ALONG THE ITCZ.

A 1010 MB LOW IS CENTERED NEAR 13N125W MOVING W NEAR 10 KT. 
WIDELY SCATTERED CONVECTION WITHIN 120 NM OF CENTER.

  
...DISCUSSION...

UPPER LEVELS...
A TROUGH EXTENDS FROM 32N130W TO 16N123W MOVING NE 10-15 KT. A 
RIDGE EXTENDS FROM CENTRAL MEXICO TO 20N110W AND 10N118W. 
EXTENSIVE TROPICAL MOISTURE IS BEING PUMPED NE BETWEEN THE 
TROUGH AND THE RIDGE. A LARGE AREA OF DRY AIR IS ELSEWHERE 
BETWEEN 100W AND 120W. A CYCLONIC CIRCULATION NEAR 9N103W IS 
NEAR STATIONARY. THE BROAD CIRCULATION WITH THIS SYSTEM EXTENDS 
FROM CENTRAL MEXICO INTO THE DEEP TROPICS BELOW THE EQUATOR.
MORE TROPICAL MOISTURE IS BEING ADVECTED WITH THIS SYSTEM INTO 
EASTERN MEXICO AND THE GULF OF MEXICO.

SURFACE...
BROAD HIGH PRESSURE DOMINATES THE REST OF THE AREA. 


$$
TS