000
AXPZ20 KNHC 301535
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SUN NOV 30 2008

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

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.

...ITCZ...

THE INTERTROPICAL CONVERGENCE ZONE IS ALONG THE LINE...08N77W TO 
07N100W TO 07N120W TO 07N140W. THERE IS NO SIGNIFICANT 
CONVECTION ALONG THE ITCZ.

...DISCUSSION...

W OF 100W...
A WESTERLY JET STREAM EXTENDS THROUGH 28N140W TO 26N130W TO 
22N115W TO THE MEXICAN COAST AT 20N. WINDS ARE STRONGEST E OF 
125W AND ARE ESTIMATED TO BE IN THE 70 TO 80 KNOT RANGE. JUST N 
OF THE JET A MIDDLE/UPPER LEVEL CYCLONIC SHEAR AXIS IS LOCATED 
FROM 30N135W TO 25N115W. WINDS ALOFT ARE MOSTLY LIGHT TO 
MODERATE S OF ABOUT 18N WITH NO DISCERNIBLE MIDDLE OR UPPER 
LEVEL FEATURES. AT THE SURFACE FROM 10N TO 20N W OF 117W WINDS 
ARE NE TO E WINDS 20 KT AND SEAS 8 TO 11 FT IN MAINLY NW SWELL. 
ELSEWHERE W OF A LINE FROM 30N118W TO 10N112W TO 08N140W WINDS 
ARE LESS THAN 20 KT AND SEAS 8 TO 12 FT IN NW SWELL...HIGHEST 
SEAS OVER THE NW PART. FROM 19N TO 23N E OF 112W N WINDS ARE IN 
THE 20 TO 25 KT RANGE AND SEAS TO 9 FT.

E OF 100W...
OVER THE E PART OF THE DISCUSSION AREA WATER VAPOR IMAGERY 
INDICATES STRONG SUBSIDENCE WITH LIGHT TO MODERATE SOUTHWESTERLY 
WINDS ALOFT. AT THE SURFACE A TROUGH IS LOCATED ALONG 88W FROM 
05N TO 10N. MODERATE TO STRONG CONVECTION IS LOCATED OVER THE 
WESTERN HALF OF PANAMA AND ALL OF COSTA RICA.

$$
CAB