000
AXPZ20 KNHC 052207
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC THU APR 05 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

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

ITCZ FROM 06N115W TO 03N140W. SCATTERED MODERATE WITHIN 60 NM OF 
AXIS BETWEEN 121W AND 128W.

DISCUSSION...
BROAD UPPER LEVEL TROUGH IS ACROSS THE DISCUSSION AREA W OF 
130W. STRONG UPPER TROUGH N OF THE AREA HAS FLATTENED THE UPPER 
LEVEL RIDGE E OF THE TROUGH TO 115W. EXCEPT FOR AN AREA OF HIGH 
LEVEL MOISTURE FROM 15N-22N BETWEEN 127W-135W MODERATE TO STRONG 
SUBSIDENCE WITH DRY/STABLE AIR AT THE MIDDLE AND UPPER LEVELS IS 
W OF 110W. A SHARP UPPER LEVEL TROUGH FROM SOUTHERN BAJA 
CALIFORNIA TO 5N105W. ABUNDANT MOISTURE IS E OF THE TROUGH AXIS. 
AN UPPER LEVEL RIDGE EXTENDS ACROSS MEXICO TO TO CENTRAL AMERICA.

A 1030 MB IGH IS CENTERED NEAR 36N136W. A SMALL AREA OF 20 TO 25 
KT TRADES N OF 25N BETWEEN 117W AND 127W. OTHERWISE LARGE NW 
SWELLS ACROSS THE AREA W OF AROUND 110W...WITH SEAS UP TO 9 FT.

$$
FORMOSA