000
AXPZ20 KNHC 300946
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
1005 UTC TUE DEC 30 2014

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC. 
 
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

MONSOON TROUGH FROM 7N78W TO 6N94W. ITCZ FROM 6N94W TO 9N125W 
08N133W TO 07N140W. SCATTERED MODERATE CONVECTION WITHIN 60 NM N 
OF AXIS BETWEEN 122W-126W. 

...DISCUSSION...                                                 

AN UPPER LEVEL CYCLONIC CIRCULATION OVER FAR WESTERN PORTION OF 
THE DISCUSSION AREA NEAR 27N136W WITH TROUGH FROM CIRCULATION TO 
14N132W. AN AREA OF WIDESPREAD RAIN IS E OF THE TROUGH N OF 16N 
BETWEEN 130W AND 136W. OTHERWISE AN UPPER LEVEL R27IDGE EXTENDS 
FROM 32N128W TO 20N115W. HIGH LEVEL CLOUDS ARE RIDING OVER THE 
TOP OF THE RIDGE. AN UPPER LEVEL TROUGH EXTENDS FROM THE TIP OF 
BAJA CALIFORNIA TO A CYCLONIC CIRCULATION NEAR 10N106W TO THE 
EQUATOR AT 102W.

THE GULF OF PAPAGAYO...SURFACE HIGH PRESSURE IN THE NORTHWESTERN 
CARIBBEAN SEA WILL SUPPORT 20-25 KT WINDS IN THE GULF OF 
PAPAGAYO AND 8 FT SEAS LATER TODAY. 

A COLD FRONT ASSOCIATED WITH THE UPPER TROUGH IN NW PORTION OF 
THE DISCUSSION AREA EXTENDS FROM 27N140W TO 1012 MB LOW NEAR 
25N138W TO 20N135W TO 17N140W HAS INCREASED SE WINDS TO 20-30 KT 
N OF 27N W OF 131W.

THE PRES GRADIENT HAS INCREASED ACROSS SOUTHERN MEXICO RESULTING 
NLY WINDS INCREASE TO 20-30 KT THROUGH THE GULF OF TEHUANTEPEC.

$$
DGS