000
AXPZ20 KNHC 242130
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC MON DEC 24 2007

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...
INTERTROPICAL CONVERGENCE ZONE AXIS IS ALONG 6N77W 6N97W 9N115W 
8N140W. SCATTERED MODERATE CONVECTION IS WITHIN 90 NM OF AXIS W OF 
109W.

...DISCUSSION...
UPPER LEVELS...
TROUGH N OF A LINE 25N140W 21N125W 27N100W IS DRY AND CLOUD FREE IN 
THE MIDDLE AND UPPER LEVELS. THIS TROUGH IS EXPECTED TO WEAKEN WEST 
OF 125W AND DRIFT SLIGHTLY SOUTH DURING THE NEXT 36 HOURS. A PLUME 
OF UPPER LEVEL MOISTURE AND THIN CIRRUS EXTENDS 600 NM S OF TROUGH 
ADVECTING OVER SRN BAJA CALIFORNIA AND THE CENTRAL MEXICAN COAST. 
REMAINDER OF THE AREA HAS WEAK ANTICYCLONIC FLOW...AND IS EXPECTED 
TO CHANGE LITTLE OVER THE NEXT 36-48 HOURS.

SURFACE...
STRONG RIDGE...WITH 20 TO 25 KT AND OCCASIONALLY TO 30 KT SURFACE 
WINDS... IS NORTH OF THE ITCZ WEST OF 115W. ELSEWHERE BROAD TROUGH 
IS ANALYZED.

GAP WINDS IN THE GULF OF TEHUANTEPEC EXPECTED TO DECREASE TO 20 TO 25
KT TONIGHT AND THEN SLOWLY DECREASE THROUGH 48 HOURS.

GAP WINDS OF 20 TO 25 KT WILL CONTINUE IN THE GULF OF PAPAGAYO REGION
THROUGH 48 HOURS.

$$
MUNDELL