000
AXPZ20 KNHC 090331
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU MAR 09 2006

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0315 UTC.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 8N83W EQ97W THEN SOUTH OF THE 
EQUATOR. NO SIGNIFICANT CONVECTION.

...DISCUSSION...

W OF 110W...
STRONG HIGH PRES IS IN CONTROL OVER MOST OF THE PACIFIC WATERS W 
OF BAJA WITH MODERATE/STRONG TRADES W OF 120W. AN UPPER LEVEL 
RIDGE IS LOCATED N OF THE AREA NEAR 33N140W AND IS FORCING HIGH 
LEVEL MOISTURE TO SURGE SWD ALONG THE CALIFORNIA COAST TO ABOUT 
25N. A DEEP UPPER TROUGH IS LOCATED DOWNSTREAM OVER THE SW 
UNITED STATES AND A CUT-OFF TROUGH IS STRUNG ACROSS THE AREA 
FROM NRN BAJA TO 23N130W W OF 22N140W. THIS FEATURE IS 
ASSOCIATED WITH AN AREA OF MODERATE/STRONG SUBSIDENCE BETWEEN 
19N-25N AND IS ALSO INFLECTING THE SUBTROPICAL JET FROM 18N140W 
TO 19N127W THEN NEWD TOWARDS NW MEXICO.

E OF 110W...
MAINLY N/NE LOW-LEVEL FLOW EXTENDS FROM CENTRAL AMERICA TO THE 
ITCZ...AND SWD ACROSS THE EQUATOR. THERE ARE A FEW PATCHES OF 
SHOWERS/TSTMS EXTENDING ALONG THE ITCZ FROM THE PANAMA/COSTA 
RICA BORDER SW TO THE W OF THE GALAPAGOS ISLANDS...BUT OVERALL 
MOISTURE IS RATHER LIMITED AND SKIES ARE MAINLY CLEAR. A LARGE 
UPPER LEVEL ANTICYCLONE IS LOCATED SSW OF THE GULF OF 
TEHUANTEPEC NEAR 8N96W WITH AN AREA OF STRONG SUBSIDENCE 
EXTENDING OVER ITS NE QUADRANT TOWARDS CENTRAL AMERICA. BROKEN 
HIGH CLOUDINESS IS APPROACHING THE ANTICYCLONE FROM THE W AND 
EXTENDS NWD TOWARDS MEXICO.

$$
BERG