000
AXPZ20 KNHC 040344
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC MON JUN 04 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0315 UTC.

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

MONSOON TROUGH EXTENDS FROM 12N86W TO LOW PRES NEAR 08N94W TO 
06N97W AND THEN CONTINUES FROM 09N109W TO LOW PRES NEAR 09N119W 
TO 03N135W. ITCZ EXTENDS FROM 03N135W TO BEYOND 02N140W. 
SCATTERED STRONG CONVECTION IS WITHIN A 75 NM RADIUS OF 09N121W. 

...DISCUSSION...

A LARGE MIDDLE/UPPER LEVEL TROUGH LOCATED N OF 30N E OF 145W TO 
THE UNITED STATES W COAST EXTENDS SOUTHWARD TO 28N W OF 128W. 
THIS FEATURE IS FORECAST TO MOVE RAPIDLY E OVER THE NEXT TWO 
DAYS. AN ASSOCIATED COLD FRONT IS LOCATED THROUGH 34N130W TO 
BEYOND 30N140W AND IS EASILY IDENTIFIABLE ON THE LATEST VISIBLE 
SATELLITE IMAGERY. MOVING DOWNSTREAM A LARGE UPPER LEVEL RIDGE 
COVERS THE AREA N OF 18N BETWEEN 115W AND 125W. WATER VAPOR 
IMAGERY INDICATES STRONG SUBSIDENCE OVER THIS AREA AS WELL AS 
OVER THE DEEP TROPICS W OF 100W. AT THE SURFACE A 1010 MB LOW 
PRESSURE CENTER NEAR 09N119W IS MOVING W ABOUT 10 KT. IN THE 
AREA N OF 26N E OF 130W N WINDS ARE FORECAST TO BE IN THE 20 TO 
25 KT RANGE IN 48 HOURS WITH SEAS 8 TO 10 FT...HIGHEST E.

A WELL-DEFINED MIDDLE/UPPER LEVEL TROUGH IS LOCATED N OF 12N 
BETWEEN 100W AND 112W WITH THE AXIS POSITIONED ALONG 106W. THIS 
FEATURE WILL MOVE LITTLE OVER THE NEXT 48 HOURS BUT WILL WEAKEN. 
ABUNDANT MOISTURE COVERS THE FAR EASTERN PART OF THE DISCUSSION 
AREA.  

$$
CAB