000
AXPZ20 KNHC 220338
TWDEP 

TROPICAL WEATHER DISCUSSION      
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SUN MAR 22 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 08N78W TO 08N82W TO 05N90W TO 
03N100W TO 03N110W TO 07N130W TO 05N140W. NO SIGNIFICANT 
CONVECTION IS NOTED.

...DISCUSSION...

W OF 110W...
A LARGE WELL-DEFINED MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS 
CENTERED ABOUT 660 NAUTICAL MILES E OF HAWAII NEAR 20N145W AND 
IS MOVING SLOWLY E AT ABOUT 5 TO 10 KNOTS. THE CIRCULATION IS 
FORECAST TO MOVE TO NEAR 28N133W IN 48 HOURS. A JET EXTENDS 
THROUGH 26N140W TO 29N130W INTO SOUTHERN CALIFORNIA. SATELLITE 
CLOUD DRIFT WINDS ALONG THE JET ARE AS HIGH AS 110 KNOTS. A 
LARGE AREA OF SOUTHWESTERLY TO WESTERLY WINDS ALOFT LIE S OF THE 
JET TO 15N AND ALSO S OF 15N TO THE EQUATOR W OF 120W. INFRARED 
SATELLITE IMAGERY INDICATES DENSE MIDDLE/UPPER LEVEL CLOUDS FROM 
ABOUT 10N TO 25N W OF 128W. AT THE SURFACE A RIDGE AXIS IS 
LOCATED THROUGH 32N140W TO NEAR 21N105W. THE RIDGE IS FORECAST 
TO STRENGTHEN OVER THE NEXT COUPLE OF DAYS WITH INCREASING WINDS 
AND BUILDING SEAS N OF ABOUT 10N W OF 110W.

E OF 110W...
WATER VAPOR IMAGERY INDICATES STRONG SUBSIDENCE OVER THE E PART 
OF THE DISCUSSION AREA WITH GENERALLY MODERATE WESTERLY WINDS 
ALOFT. AT THE SURFACE A MINIMAL GALE IS OCCURRING OVER THE GULF 
OF TEHUANTEPEC...WINDS ARE FORECAST TO DROP BELOW GALE FORCE IN 
12 HOURS. NORTH WINDS IN THE 20 TO 25 KNOT RANGE ARE LOCATED 
OVER THE GULF OF PANAMA. 

$$
CAB