000
AXPZ20 KNHC 280221
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU SEP 28 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...
ITCZ AXIS IS CENTERED ALONG 9N80W 10N110W 8N130W 
10N140W. SCATTERED MODERATE CONVECTION IS 240 NM WIDE FROM 110W TO 
130W.


TROPICAL WAVES...
TROPICAL WAVE NEAR 82W MOVING W 15 KT.

A 1010 MB LOW NEAR 12N122W MOVING W NEAR 10 KT. CONVECTION IS WIDELY 
SCATTERED WITHIN 180 NM N SEMICIRCLE.
  
...DISCUSSION...
UPPER LEVELS...
A TROUGH EXTENDS FROM 32N130W TO 17N125W 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