000
AXPZ20 KNHC 290927
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
1005 UTC MON APR 29 2013

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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 
MONSOON TROUGH 8N84W TO 7N100W. ITCZ 7N100W TO 9N115W TO 8N125W
TO 06N140W. SCATTERED MODERATE TO STRONG CONVECTION WITHIN 150
NM S OF AXIS FROM 100W-107W AND FROM 3N-12N BETWEEN 120W-133W. 
  
...DISCUSSION... 
AN UPPER LEVEL TROUGH OVER THE FAR NW PORTION OF THE DISCUSSION
AREA FROM 32N132W TO CYCLONIC CIRCULATION NEAR 30N137W TO
27N140W. MODERATE TO STRONG SUBSIDENCE WITH DRY AND STABLE AIR
AT THE MIDDLE AND UPPER LEVELS IS N OF 25N W OF 110W. A BROAD
UPPER LEVEL RIDGE AND ANTICYCLONIC CIRCULATION CENTERED NEAR
10N95W WITH MOSTLY ZONAL WESTERLY FLOW E OF THE TROUGH. IN
THE DEEP TROPICS ANOTHER ANTICYCLONIC CIRCULATION IS CENTERED
NEAR 8N125W. DIFFLUENT UPPER LEVEL FLOW ASSOCIATED WITH THE
ANTICYCLONE IS ENHANCING CONVECTION FROM 3N-12N BETWEEN
120W-133W.  

SURFACE RIDGE IS ACROSS THE AREA N OF 15N W OF 120W. THE 
RIDGE HAS WEAKEND AND THE TRADES HAVE DECREASED TO 20 KT
OR LESS. HOWEVER SEAS ARE TO 9 FT IN MIXED NE AND SW SWELL
FROM 10N-15N W OF 125W. NLY SWELLS TO 9 FT ARE FORECAST TO
MOVE INTO THE AREA N OF 28N BETWEEN 122W-133W TUE. 

$$
DGS