000
AXPZ20 KNHC 292143
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2030 UTC.

ITCZ...
AXIS IS CENTERED ALONG 6N78W 8N100W 9N110W 12N130W 10N140W. 
SCATTERED MODERATE CONVECTION 180 NM WIDE 78W TO 94W. SCATTERED 
MODERATE CONVECTION 120 NM WIDE 100W TO 110W.

TROPICAL WAVES/LOWS...
A TROPICAL WAVE IS ALONG 89W N OF 3N MOVING W 15 KT. SCATTERED 
CONVECTION OVER CENTRAL AMERICA AND ALONG THE ITCZ.

A 1010 MB LOW IS CENTERED NEAR 12N131W MOVING W 10 KT. WIDELY 
SCATTERED CONVECTION WITHIN 120 NM OF CENTER.

  
...DISCUSSION...

UPPER LEVELS...
A CYCLONIC CIRCULATION NEAR 5N100W IS MOVING W 10 KT. A RIDGE 
EXTENDS FROM 10N100W TO 13N140W. THE BROAD CIRCULATION WITH THIS 
SYSTEM EXTENDS INTO THE DEEP TROPICS BELOW THE EQUATOR. MORE 
TROPICAL MOISTURE IS BEING ADVECTED WITH THIS SYSTEM INTO 
EASTERN MEXICO AND THE GULF OF MEXICO. 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. 
ANOTHER RIDGE COVERS  THE AREA E OF 90W INTO SOUTH AMERICA. 
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.

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


$$
TS