000
AXPZ20 KNHC 300920
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SUN NOV 30 2008

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

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...ITCZ...
THE INTERTROPICAL CONVERGENCE ZONE IS ALONG THE LINE...06N77W 
TO 06N110W TO 07N140W.  THERE IS NO SIGNIFICANT CONVECTION ALONG 
THE ITCZ.

...DISCUSSION...
DEEP LAYER TROUGH IS NORTH OF A LINE FROM SOUTH TEXAS NEAR 
26N98W TO 23N105W TO 22N115W TO BEYOND 26N140W. THE AREA NORTH 
OF THE LINE IS DRY AND CLOUD FREE IN THE MIDDLE AND UPPER LEVELS 
WITH MOSTLY OVERCAST STRATOCUMULUS IN THE LOWER LEVELS. A PLUME 
OF UPPER LEVEL MOISTURE WITH BROKEN MOSTLY HIGH CLOUDS EXTENDS 
500 NM SOUTHEAST OF THE LINE AND IS ADVECTING OVER SOUTHERN 
MEXICO. BROKEN TO OVERCAST STRATOCUMULUS ARE WEST OF 115W SOUTH 
OF THE ABOVE LINE TO 20N AND SCATTERED STRATOCUMULUS ARE FROM 
15N TO 20N WEST OF 120W. THE TROUGH IS FORECAST TO WEAKEN 
THROUGH 48 HOURS.

REMAINDER OF THE MIDDLE AND UPPER LEVELS ARE DOMINATED BY WEAK 
ANTICYCLONIC FLOW.

THE AREA SOUTH AND EAST OF A LINE FROM NEAR 20N95W TO 12N105W TO 
12N115W TO THE EQUATOR NEAR 120W IS DRY AND CLOUD FREE IN THE 
MIDDLE AND UPPER LEVELS EXCEPT FOR SOME WIDELY SCATTERED 
CONVECTION NEAR THE COASTS OF COSTA RICA AND NICARAGUA.

OVERCAST TO BROKEN STRATOCUMULUS ARE SOUTH OF THE ITCZ ACROSS 
THE ENTIRE AREA.

WEAK SURFACE RIDGE IS NORTH OF 13N WEST OF 110W. ELSEWHERE A 
WEAK TROUGH IS ANALYZED.

$$
LL