000
AXPZ20 KNHC 070324
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC MON DEC 07 2009

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

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...ITCZ...

THE INTERTROPICAL CONVERGENCE ZONE IS ALONG THE LINE...06N77W TO 
10N115W TO 09N140W. SCATTERED MODERATE TO STRONG CONVECTION IS 
WITHIN 100 NM OF THE POINT 10N111W. SCATTERED MODERATE TO STRONG 
CONVECTION IS WITHIN 60 NM OF THE POINT 10.5N116.5W.

OTHER CONVECTION NORTH OF THE ITCZ...
SCATTERED MODERATE WITH ISOLATED STRONG CONVECTION IS WITHIN 60 
NM OF THE POINT 16N105W.

...DISCUSSION...

FOR THE NEXT SEVERAL DAYS MODERATE WESTERLIES WILL BE FROM 20N 
TO 25N WITH MODERATE TO STRONG WESTERLIES NORTH OF 25N. EMBEDDED 
STRONG SHORTWAVE IS OVER THE WESTERN PART OF THE AREA WITH THE 
SHORTWAVE EXTENDING SOUTH TO THE ITCZ WEST OF THE AREA. DRY 
MIDDLE AND UPPER LEVELS ARE NORTHWEST OF THE WAVE AXIS. A PLUME 
OF MIDDLE AND UPPER LEVEL MOISTURE IS EMANATING FROM ITCZ AND IS 
OVER THE WESTERN PART OF THE AREA SOUTH OF THE SHORTWAVE. 

OTHERWISE A VERY BROAD RIDGE IS OVER THE AREA.

COLD FRONT 30N132W TO 26N140W. WEAK RIDGE IS ELSEWHERE NORTH OF 
17N WEST OF 110W. REMAINDER OF THE AREA IS ANALYZED AS BROAD 
TROUGH.

GAP NORTHEAST TO EAST WINDS OF 20 TO OCCASIONALLY 25 KT ARE IN 
AND ABOUT 240 NM DOWNSTREAM FROM THE GULF OF PAPAGAYO. THESE 
WINDS WILL CHANGE LITTLE IN THE NEXT COUPLE OF DAYS.

$$
LL