000
AXPZ20 KNHC 021606
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC TUE JUN 02 2009

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. 

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1515 UTC.

...ITCZ...
AXIS ALONG 09N84W TO 12N102W TO 08N118W TO 05N132W TO 07N140W.  
SCATTERED MODERATE CONVECTION WITHIN 180 NM S OF AXIS FROM 92W- 
100W.  SCATTERED MODERATE ISOLATED STRONG CONVECTION WITHIN 180 
NM S AND 120 NM N OF AXIS FROM 109W-132W.  SCATTERED MODERATE 
CONVECTION WITHIN 90 NM N OF AXIS W OF 138W.

...DISCUSSION...
DEEP LAYERED CYCLONIC VORTEX AT 36N128W ASSOCIATED WITH 1010 
MB SURFACE LOW PRES CENTER AT 35N124W WITH SURFACE TROUGH FROM 
32N128W TO  27N131W AND EXTENDING TO 28N137W.  SURFACE LOW PRES 
AND TROUGH QUICKLY LOSING UPPER SUPPORT AS VORTEX SHIFTS NE AWAY 
FROM AREA. 

MID TO UPPER LEVEL RIDGE ALONG 10N E OF 120W IS MAIN FEATURE IN 
TROPICAL E PAC ANCHORED WITH ANTICYCLONES AT 10N108W AND 11N83W 
PROVIDING GOOD OUTFLOW TO SURFACE TROUGHS ALONG 108W AND 120W.
EASTERNMOST TROUGH BEING FEED ABUNDANT TROPICAL MOISTURE AND 
DIVERGENT FLOW ALOFT BY UPPER CYCLONE AT 15N138W.  MOISTURE NOT 
YET REACHING EASTERNMOST TROUGH.  

HIGH PRES SYSTEM AT 33N144W KEEPS FRESH TRADEWIND FLOW W OF 130W 
COMBINED WITH WESTERNMOST SURFACE TROUGH.  PRES GRADIENT 
INCREASE SW WINDS ACROSS N GULF OF CALIFORNIA TONIGHT TO SUPPORT 
SW WINDS OF 20 KT.  SIMILAR PATTERN EXPECTED OVER N GULF OF 
CALIFORNIA DURING NEXT 48 HR. 

ENHANCED EASTERLY TRADE WINDS IN WESTERN CARIBBEAN EXPECTED TO 
SEEP ACROSS GULF OF PAPAGAYO DURING NEXT TWO DAYS. 

$$
WALLY BARNES