000
AXPZ20 KNHC 291527
TWDEP 

TROPICAL WEATHER DISCUSSION      
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SUN MAR 29 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 1500 UTC.

...ITCZ...
THE INTERTROPICAL CONVERGENCE ZONE IS ALONG THE LINE...04N77W TO 
04N105W TO 07N140W.  SCATTERED MODERATE WITH ISOLATED STRONG 
CONVECTION IS WITHIN 60 NM EITHER SIDE OF THE ITCZ W OF 133W.

...DISCUSSION...
DEEP LAYER TROUGH IS NORTH OF A LINE FROM CENTRAL BAJA 
CALIFORNIA TO NEAR 12N140W WITH A DEEP LAYER CYCLONIC 
CIRCULATION NEAR 26N136W. SOME CLOUDINESS IS ASSOCIATED WITH 
THE TROUGH NEAR THE CYCLONIC CIRCULATION CENTER BUT OTHERWISE 
LITTLE WEATHER IS ASSOCIATED WITH THE TROUGH. REMAINDER OF THE 
MIDDLE AND UPPER LEVELS IS UNDER BROAD ANTICYCLONIC 
FLOW.

EXCEPT FOR SOME ISOLATED ITCZ CONVECTION THE AREA EAST OF 110W 
AND THE AREA SOUTH OF A LINE FROM 15N110W TO 15N120W TO 00N137W 
IS DRY AND CLOUD FREE IN THE MIDDLE AND UPPER LEVELS.

WEAK SURFACE RIDGE IS NW OF A LINE FROM THE NORTHERN GULF OF 
CALIFORNIA TO 10N120W TO 07N140W. REMAINDER OF THE SURFACE IS 
ANALYZED AS WEAK TROUGH.

BROKEN TO OVERCAST STRATOCUMULUS CLOUDS ARE N OF 17N W OF 120W.

$$
LL