000
AXPZ20 KNHC 310341
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC MON DEC 31 2007

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...

INTERTROPICAL CONVERGENCE ZONE IS ALONG THE LINE...9N80W 6N100W 
5N115W 7N130W 7N140W. SCATTERED MODERATE ISOLATED STRONG 
CONVECTION IS LOCATED WITHIN 90 NM EITHER SIDE OF A 5N80W 7N85W 
LINE.  

...DISCUSSION...

W OF 100W...
AN ELONGATED MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS CENTERED 
NEAR 23N133W 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 23N125W WITH SATELLITE CLOUD DRIFTS WINDS INDICATING 
SPEEDS OF 50 TO 60 KNOTS ALONG THE JET. A LARGE AREA OF 
SOUTHWESTERLY WINDS COVERS MOST OF THE AREA FROM ABOUT 10N TO 
23N BETWEEN 110W AND 135W. AT THE SURFACE NE TO E TRADE WINDS OF 
25 KT AND SEAS 12 TO 15 FT ARE LOCATED FROM 10N TO 22N 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 
7N93W AND IS NEARLY STATIONARY. MODERATE SOUTHERLY WINDS ALOFT 
ARE LOCATED N OF ABOUT 5N E OF 90W INTO CENTRAL AMERICA AND 
COLOMBIA. WATER VAPOR IMAGERY INDICATES STRONG SUBSIDENCE OVER 
MOST OF THE AREA E OF 100W. GULF OF TEHUANTEPEC WINDS WILL 
INCREASE TO GALE FORCE IN 48 HOURS.

$$
CAB