000
AXPZ20 KNHC 100919
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC TUE FEB 10 2009

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 LIES ALONG A LINE FROM... 
01N80W TO 04N105W TO 04N120W TO 05N140W. SCATTERED MODERATE 
CONVECTION IN WITHIN 60 NM EITHER SIDE OF THE AXIS FROM 112W TO 
128W. SCATTERED MODERATE CONVECTION IS WITHIN 90 NM OF THE POINT 
06N129W.

...DISCUSSION...
BROAD LONGWAVE TROUGH CONTINUES OVER THE AREA NORTH OF 20N. 
STRONG EMBEDDED SHORTWAVE IS MOVING OVER NORTHWEST MEXICO AND 
WILL MOVE ACROSS NORTHERN MEXICO TODAY AND TONIGHT. THE BROAD 
LONGWAVE TROUGH WILL CONTINUE THROUGH AT LEAST 72 HOURS. 
ELSEWHERE BROAD ANTICYCLONIC FLOW DOMINATES.

THE AREA NORTH OF A LINE FROM 28N140W TO 24N120W TO 25N114W TO 
30N106W AND SOUTH OF 30N IS DRY IN THE MIDDLE AND UPPER LEVELS 
INDICATING UPPER LEVEL SUBSIDENCE. ALSO THE AREA EAST OF A LINE 
FROM 20N95W TO 12N115W TO 05N115W TO 00N105W IS DRY AND CLOUD 
FREE IN THE MIDDLE AND UPPER LEVELS WITH MODERATE TO STRONG 
UPPER LEVEL SUBSIDENCE.  

WEAKENING COLD FRONT IS ALONG A LINE FROM 30N113W TO 27N115W TO 
24N125W. OTHERWISE MODERATE SURFACE RIDGE IS NORTH OF 10N WEST 
OF 105W. REMAINDER OF THE AREA IS ANALYZED AS A BROAD SURFACE 
TROUGH. 

GAP WINDS CONTINUE IN THE GULF OF PAPAGAYO REGION WITH NORTHEAST 
WINDS OF 20 TO 25 KT. THESE WINDS SHOULD CONTINUE THROUGH 24 
HOURS THEN SUBSIDE TO NORTHEAST 20 KNOTS IN 48 HOURS.

GAP WINDS IN THE GULF OF PANAMA REGION WILL CONTINUE THROUGH 
TODAY THEN DIMINISH TONIGHT.

$$
LL