000
AXPZ20 KNHC 251521
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC TUE MAR 25 2008

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

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1445 UTC.

...ITCZ...
ITCZ AXIS ALONG 3N77W 4N115W 5N140W. SCATTERED MODERATE TO 
STRONG CONVECTION IS S OF 4N E OF 80W. SCATTERED MODERATE WITH  
ISOLATED STRONG CONVECTION IS WITHIN THE AREA FROM 5N TO 12N 
FROM 113W TO 121W. SCATTERED MODERATE CONVECTION IS WITHIN 60 NM 
OF THE POINT 4.5N127.5W.

...DISCUSSION...
UPPER LEVELS...
MAINLY UPPER TROUGH OVER THE EASTERN PART OF THE AREA CONTINUE 
TO MOVE EAST AND WEAKEN SLOWLY. THE TROUGH AXIS IS ALONG THE 
LINE 2N80W TO 15N75W THEN OVER HISPANIOLA. CONVECTION HAS 
DEVELOPED ALONG THE COLOMBIAN AND NORTHERN PERUVIAN COASTS AND 
MAY BE RELATED TO UPPER DIFFLUENCE EAST OF THE TROUGH AXIS 
COUPLED WITH LAND BREEZES IN THE LOWER LEVELS.

WEST OF THE TROUGH AXIS THE AREA NORTH OF THE ITCZ AND EAST OF 
THE LINE 4N110W 15N110W 20N100W IS DRY AND MOSTLY CLOUD FREE IN 
THE MIDDLE AND UPPER LEVELS.

A MAJOR TROUGH WEST OF THE AREA EXTENDS EAST TO OVER THE 
NORTHWEST PART OF THE AREA. THE TROUGH IS WEST OF A LINE 32N132W 
25N135W 19N140W. SOUTHERLY FLOW EAST OF THE TROUGH AXIS IS MOIST 
WITH BROKEN MAINLY HIGH CLOUDS N OF 20N FROM 126W TO 139W.

THE AREA NORTH OF THE ITCZ TO 12N FROM 112W TO 122W IS DIFLUENT 
ALOFT WITH MULTI LEVEL CLOUDS AND EMBEDDED CONVECTION.

A CLOUD FREE AND DRY AREA IS OVER NORTHEAST MEXICO N OF THE LINE 
32N112W 25N108W TO BEYOND 24N98W.

REMAINDER OF THE AREA IS COVERED BY BROAD ANTICYCLONIC FLOW.

SURFACE...
WEAK RIDGE IS NORTH OF 13N WEST OF 114W. REMAINDER OF THE AREA 
IS ANALYZED AS A BROAD TROUGH.

GAP WINDS OF GALE FORCE IN THE GULF OF TEHUANTEPEC REGION WILL 
FALL TO LESS THAN GALE FORCE TONIGHT AND CONTINUE TO DIMINISH TO 
LESS THAN 20 KT BY LATE WEDNESDAY.

GAP WINDS IN THE GULF OF PAPAGAYO REGION OF 20 TO 25 KNOTS WILL 
CONTINUE THROUGH WEDNESDAY NIGHT.

GAP WINDS IN THE GULF OF PANAMA REGION OF NEAR 20 KNOTS WILL 
ALSO CONTINUE THROUGH WEDNESDAY NIGHT.

$$
LL