000
AXPZ20 KNHC 240920
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC FRI APR 24 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.

...ITCZ...

THE INTERTROPICAL CONVERGENCE ZONE IS ALONG THE LINE...04N77W TO 
06N110W TO 06N140W. SCATTERED MODERATE CONVECTION IS WITHIN 60 
NM OF THE POINT 06N98.5W. 

...DISCUSSION...

UPPER LEVELS...
MODERATE SOUTHWESTERLY WINDS ARE NORTH OF 25N AND ARE ASSOCIATED 
WITH A SHORTWAVE THAT IS JUST WEST OF THE NORTHWEST PART OF THE 
AREA. THIS SHORTWAVE WILL MOVE MOVE SLOWLY EAST OVER THE FAR 
NORTHERN PART OF THE AREA  AND BY SUNDAY THE SHORTWAVE WILL BE 
OVER THE NORTHEAST PART OF THE PACIFIC AREA. AN ASSOCIATED BROAD 
PLUME OF DEEP LAYER MOISTURE AND MULTI LEVEL BROKEN TO OVERCAST 
CLOUDS IS NORTHWEST OF A LINE FROM THE SOUTHERN BAJA PENINSULA 
TO THE ITCZ NEAR 140W. CLOUDINESS IS APPROACHING BAJA CALIFORNIA 
AND WILL MOVE OVER THIS AREA TODAY.

REMAINDER OF THE AREA IS UNDER ANTICYCLONIC FLOW WITH A HIGH 
CENTERED NEAR 15N115W. THIS FEATURE IS EXPECTED TO PERSIST 
THROUGH AT LEAST THE NEXT SEVERAL DAYS.

SURFACE...
WEAK TROUGH IS OVER THE FAR NORTHWEST PART. OTHERWISE A WEAK 
HIGH CENTERED NEAR 27N131W COVERS THE AREA NORTH OF 13N WEST OF 
110W. REMAINDER OF THE AREA IS ANALYZED AS WEAK SURFACE TROUGH.

GAP NORTHEAST TO EAST WINDS OF 20 TO 25 KNOTS IN THE GULF OF 
PAPAGAYO REGION WILL CONTINUE FOR THE NEXT SEVERAL DAYS.

$$
LL