000
AXPZ20 KNHC 260933
TWDEP 

TROPICAL WEATHER DISCUSSION      
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC THU MAR 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.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 05N77W TO 01N100W TO 03N120W TO 
05N140W. NO SIGNIFICANT CONVECTION ALONG AXIS. 

...DISCUSSION...

W OF 110W...
AN ELONGATED MIDDLE/UPPER LEVEL CYCLONIC SHEAR AXIS IS LOCATED 
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 SHEAR AXIS W 
OF THE DISCUSSION AREA BOUNDARY NEAR 25N146W. THE SHEAR AXIS 
WILL SHIFT E AND A RIDGE WILL DEVELOP ALONG 128W 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 SHEAR AXIS TO 
NEAR 12N AND IS CAPPED BY A JET LOCATED THROUGH 18N140W TO 
22N125W 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 1038 MB 
HIGH IS CENTERED NEAR 37N143W. A RIDGE AXIS EXTENDS FROM THE 
HIGH SE THROUGH 30N130W TO 20N115W. OVER THE AREA N OF 10N W OF 
125W NE WINDS ARE 20 TO 25 KT AND SEAS 9 TO 13 FT. OVER THE GULF 
OF CALIFORNIA NW WINDS 20 TO 25 KNOTS ARE FORECAST IN 30 HOURS. 

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 ALOFT 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