000
AXPZ20 KNHC 260336
TWDEP 

TROPICAL WEATHER DISCUSSION      
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU MAR 26 2009

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

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY 
THROUGH 0300 UTC.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 03N77W TO 01N91W TO 02N106. NO 
SIGNIFICANT CONVECTION WAS OCCURRING NEAR AXIS. 

...DISCUSSION...

W OF 110W...
AN ELONGATED MIDDLE/UPPER LEVEL TROUGH HAS ITS AXIS STRETCHING 
FROM THE NORTHERN GULF OF CALIFORNIA TO 27N130W TO BEYOND 
26N140W. WATER VAPOR IMAGERY INDICATES STRONG SUBSIDENCE 
ASSOCIATED WITH THIS FEATURE. A LARGE MIDDLE/UPPER LEVEL 
CYCLONIC CIRCULATION IS FORMING AT THE W END OF THE TROUGH W OF 
THE DISCUSSION AREA BOUNDARY NEAR 25N145W. THE TROUGH WILL SHIFT 
E AND A RIDGE WILL DEVELOP ALONG 138W N OF 20N IN 36 TO 48 
HOURS. A LARGE AREA OF SOUTHWESTERLY FLOW ALOFT...THAT HAS 
PERSISTED FOR SEVERAL DAYS...IS LOCATED S OF THE TROUGH TO NEAR 
12N AND IS CAPPED BY A JET LOCATED THROUGH 15N140W TO 23N125W 
ACROSS CENTRAL BAJA CALIFORNIA. SATELLITE CLOUD DRIFT WINDS 
ALONG THE JET AXIS ARE AS HIGH AS 80 KNOTS. LIGHT TO OCCASIONAL 
MODERATE WESTERLY FLOW COVERS THE DEEP TROPICS S OF ABOUT 12N TO 
THE EQUATOR. AT THE SURFACE A STATIONARY 1039 MB HIGH IS 
CENTERED NEAR 37N142W. A RIDGE AXIS EXTENDS FROM THE HIGH SE 
THROUGH 30N130W TO 20N110W. OVER THE AREA N OF 12N W OF 125W N 
TO NE WINDS ARE 20 TO 25 KT AND SEAS 10 TO 13 FT PRIMARILY IN NE 
SWELL. 

E OF 110W...
STRONG SUBSIDENCE IS LOCATED OVER THE AREA N OF 08N E OF 105W 
INTO CENTRAL AMERICA. LIGHT TO OCCASIONAL MODERATE WESTERLY 
WINDS ARE LOCATED S OF 08N TO THE EQUATOR E OF 95W INTO 
COLOMBIA. AT THE SURFACE GULF OF PAPAGAYO WINDS ARE NE TO 20 KT 
AND SEAS LESS THAN 8 FT. 

$$
CAB