000
AXPZ20 KNHC 260919
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC TUE MAY 26 2009

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

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...TROPICAL WAVES...
TROPICAL WAVE ALONG 108W FROM 02N TO 15N IS MOVING W AT 15 KT. 
STRONG UPPER WINDS FROM THE SOUTHWEST OVER THE WAVE. SCATTERED 
MODERATE WITH ISOLATED STRONG CONVECTION FROM 10N TO 11.5N FROM 
105W TO 111W. NO ORGANIZATION OF THE CONVECTION IS NOTED.

...ITCZ...
THE INTERTROPICAL CONVERGENCE ZONE IS ALONG THE LINE...05N140W 
TO 07N105W TO 05N77W. SCATTERED MODERATE TO STRONG CONVECTION IS 
WITHIN 60 NM OF THE POINT 05.5N80W AND ALSO THE POINT 08N82W.
SCATTERED MODERATE TO STRONG CONVECTION IS WITHIN 90 NM OF THE 
POINT 07N102W. SCATTERED MODERATE CONVECTION IS WITHIN 60 NM OF 
THE POINT 10.5N110W.

.DISCUSSION...

UPPER LEVELS
WEAK TO MODERATE WESTERLIES ARE NORTH OF 20N WITH BROAD FLAT 
ANTICYCLONE SOUTH OF 20N. SHORTWAVE WITHIN THE WESTERLIES IS 
NORTH AND EAST OF A LINE FROM NEAR 30N102W TO 22.5N115W TO 
21N125W TO 32N125W. THIS AREA IS DRY AND CLOUD FREE IN THE 
MIDDLE AND UPPER LEVELS EXCEPT FOR SOME ISOLATED CONVECTION AT 
THE EAST END OF THE WAVE NORTH OF 25N E OF 105W.

SURFACE
WEAK SURFACE RIDGE IS NORTH OF THE ITCZ WEST OF 110W. REMAINDER 
OF THE AREA IS ANALYZED AS A WEAK TROUGH.

$$
LL