000
AXPZ20 KNHC 092131
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC SUN MAR 09 2008

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

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

...ITCZ...

ITCZ AXIS IS ALONG THE LINE...2N78W 4N110W 6N115W 5N140W. 
SCATTERED MODERATE CONVECTION IS WITHIN THE AREA FROM 2N TO 7N 
BETWEEN 113W AND 119W. 

...DISCUSSION...
UPPER LEVELS...
THERE ARE TWO DEEP LAYER TROUGH WITHIN THE AREA. ONE IS NORTH OF 
10N E OF 115W AND EXTENDS EAST TO THE LINE FROM THE ITCZ NEAR 
115W TO 21N100W TO 25N95W. THE AREA IS DRY AND CLOUD FREE IN THE 
MIDDLE AND UPPER LEVELS WITH ONLY SCATTERED LOW CLOUDS SOUTH OF 
17N. AN AREA OF MIDDLE AND UPPER LEVEL MOISTURE WITH MULTI LEVEL 
CLOUDS EXTENDS 300 NM SOUTHEAST OF THE TROUGH AND IS ADVECTING 
OVER MEXICO JUST SOUTHEAST OF MEXICO CITY. THIS TROUGH IS 
EXPECTED TO REMAIN IN PLACE THROUGH 48 HOURS.

ANOTHER TROUGH IS NORTH OF 16N WEST OF 135W. MULTI LEVEL BROKEN 
TO OVER CAST CLOUDS ARE IN THIS AREA FROM 20N TO 28N. THIS 
TROUGH IS FORECAST TO DRIFT SOUTH AND WEAKEN SLIGHTLY.

REMAINDER OF THE AREA IS COVERED BY WEAK ANTICYCLONIC 
FLOW.

SURFACE...
WEAK RIDGE IS NORTH OF 10N WEST OF 115W. WEAK TROUGH ALONG LINE 
4N116W 13N108W. ELSEWHERE BROAD TROUGH IS ANALYZED.

FRESH TRADE WIND FLOW OVER THE CARIBBEAN IS PROVOKING FRESH 
WINDS THROUGH THE GULF OF PAPAGAYO AREA. THIS WILL CONTINUE 
THROUGH 48 HOURS.

$$
LL