000
AXPZ20 KNHC 122134
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC WED MAR 12 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 ALONG THE LINE...0N80W 2S85W 2N110W 6N140W. SCATTERED 
MODERATE CONVECTION IS WITHIN 100 NM OF THE POINT 6N137W.

OTHER CONVECTION...
SCATTERED MODERATE CONVECTION IS WITHIN 100 NM OF THE POINT 
10N122W.

...DISCUSSION...
UPPER LEVELS...
UPPER RIDGE IS NORTH OF 20N AND WEST OF A LINE 32N120W 20N125W. 
THE PORTION OF THIS AREA NORTH OF 27N IS MOIST IN THE MIDDLE AND 
UPPER LEVELS BUT IS CLOUD FREE. FROM 20N TO 27N THE AREA IS DRY 
AND CLOUD FREE IN THE MIDDLE AND UPPER LEVELS.

ANOTHER RIDGE EAST OF 130W AND NORTH OF A LINE 6N130W TO THE 
EQUATOR AT 115W AND NORTH OF THE EQUATOR EAST OF 115W. THE RIDGE 
EXTENDS NORTH TO A LINE 15N130W TO EXTREME SOUTH TEXAS. THE 
PORTION OF THE RIDGE NORTHWEST OF A LINE 2N120W 10N105W TO 
20N95W IS DIFLUENT IN THE UPPER LEVELS AND MOIST IN THE MIDDLE 
AND UPPER LEVELS WITH AREAS OF MULTI LEVEL CLOUDS AND SOME 
EMBEDDED CONVECTION.

TWO TROUGH ARE IN THE AREA. ONE IS NORTH AND EAST OF THE ABOVE 
MENTIONED RIDGES. THE TROUGH IS CAUSING SOME CLOUDINESS OVER 
MEXICO MAINLY NORTH OF 25N WITH DRYING TO THE WEST OF 110W. 

THE OTHER TROUGH IS SOUTH AND WEST OF THE ABOVE MENTIONED 
RIDGES. A CYCLONIC CIRCULATION CENTER IS EMBEDDED IN THE FEATURE 
AND IS CENTERED NEAR 14N138W. THE TROUGH IS DRIFTING WEST AND 
SLOWLY WEAKENING.

SURFACE...
MODERATE RIDGE IS NORTH OF 10N WEST OF 105W. ELSEWHERE BROAD 
TROUGH IS ANALYZED.

GAP WINDS OF NEAR 20 KNOTS IN THE GULF OF TEHUANTEPEC WILL END 
TONIGHT. 

GAP WINDS OF NEAR 20 KNOTS IN THE GULF OF PAPAGAYO REGION WILL 
ALSO END TONIGHT.

$$
LL