000
AXPZ20 KNHC 072130
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC FRI SEP 07 2012

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 
2100 UTC.

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

MONSOON TROUGH EXTENDS FROM 08N77W TO 10N90W TO A 1011 MB LOW AT 
08N93W TO 12N110W TO 10N125W. ITCZ AXIS EXTENDS FROM 05N130W TO 
06N140W. SCATTERED MODERATE CONVECTION IS FROM 05N TO 12N 
BETWEEN 77W AND 85W...FROM 08N TO 11N BETWEEN 101W AND 110W... 
AND FROM 06N TO 11N BETWEEN 122W AND 127W.
 
...DISCUSSION...

THE UPPER LEVELS APPEAR VERY DRY W OF A LINE FROM CALIFORNIA 
COAST AT 34W TO 20N130W TO 10N140W. ON THE OTHER HAND... THE 
UPPER LEVELS ARE SLIGHTLY DIFFLUENT OVER THE DEEP TROPICS AND IS 
SUPPORTING THE CONVECTION ALONG THE MONSOON TROUGH FROM 77W TO 
125W.

ELSEWHERE AT THE SURFACE...A 1015 MB LOW...REMNANT OF TROPICAL 
CYCLONE JOHN...IS NEAR 26N122W BUT LACKS CONVECTION. A SURFACE 
RIDGE IS N OF 25N AND W OF 130W. CROSS EQUATORIAL SE SWELL WITH 
SEAS TO 8 FT IS NOTED S OF 03N BETWEEN 120W AND 132W BUT IS 
EXPECTED TO SUBSIDE BELOW 8 FT ON SAT.

$$
FORMOSA