000
AXPZ20 KNHC 302131
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC SUN DEC 30 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 IS ALONG THE LINE...6N77W 7N105W 
9N120W 7N140W. SCATTERED MODERATE CONVECTION IS LOCATED WITHIN 
120 NM OF 6.3N80W. SCATTERED MODERATE CONVECTION IS LOCATED 
WITHIN 60 NM OF 7.8N138W. 

...DISCUSSION...

W OF 100W...
AN ELONGATED MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS CENTERED 
NEAR 22N134W AND IS MOVING SLOWLY N. THE CIRCULATION COVERS THE 
AREA FROM ABOUT 15N TO 26N BETWEEN 125W AND 140W. A WESTERLY JET 
ON THE S SIDE OF THE CIRCULATION EXTENDS THROUGH 16N140W TO 
18N130W TO 23N122W WITH SATELLITE CLOUD DRIFTS WINDS INDICATING 
SPEEDS OF 60 TO 70 KNOTS ALONG THE JET. A LARGE AREA OF 
SOUTHWESTERLY WINDS IS LOCATED FROM ABOUT 10N TO 22N BETWEEN 
110W AND 130W. AT THE SURFACE NE TO E TRADE WINDS OF 25 TO 30 KT 
AND SEAS 12 TO 15 FT ARE LOCATED FROM 10N TO 17N W OF 125W. 
CONDITIONS WILL DECREASE OVER THE NEXT 24 TO 48 HOURS. 

E OF 100W...
A WEAK MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS LOCATED NEAR 
7N95W AND IS NEARLY STATIONARY. SOUTHERLY WINDS ALOFT ARE 
LOCATED N OF ABOUT 5N E OF 90W INTO CENTRAL AMERICA AND 
COLOMBIA. WATER VAPOR IMAGERY INDICATES STRONG SUBSIDENCE OVER 
THE AREA E OF 100W. GULF OF TEHUANTEPEC WINDS WILL INCREASE 
WITHIN 18 HOURS TO 25 KNOTS AND CONTINUE THROUGH DAY TWO.

$$
CAB