000
AXPZ20 KNHC 270330
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
0405 UTC FRI DEC 27 2013

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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.
 
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 

MONSOON TROUGH EXTENDS FROM 04N77W TO 03N84W...THEN ITCZ FROM 
03N84W TO 06N92W TO 07N140W. NO SIGNIFICANT CONVECTION.

...DISCUSSION... 

AMPLIFIED UPPER LEVEL TROUGH/RIDGE PATTERN DOMINATES WESTERN 
PORTION OF THE DISCUSSION AREA. DIVERGENCE E OF AN UPPER TROUGH 
ALONG 146W AND W OF UPPER RIDGE ALONG 128W IS PRODUCING A LARGE 
AREA OF MID/UPPER LEVEL OVERCAST CLOUDS AND EMBEDDED LIGHT TO 
MODERATE SHOWERS. A SURFACE TROUGH...A REFLECTION OF DEEP TROUGH 
AT UPPER LEVELS...EXTENDS FROM 10N-19N ALONG 137W. WEAK SURFACE 
RIDGE PREVAILS ACROSS THE EASTERN PORTION OF THE AREA N OF THE 
CONVERGENCE ZONE.

STRONG NLY WINDS FROM 20-30 KT CONTINUE N OF 14N OVER AND JUST 
DOWNSTREAM FROM THE GULF OF TEHUANTEPEC WITH MAX SEAS TO 10 FT. 
WINDS AND SEAS WILL CONTINUE TO GRADUALLY DIMINISH THROUGH SAT. 
ELSEWHERE LARGE LONG PERIOD NW SWELL WILL PROPAGATE SE ACROSS 
THE ENTIRE AREA THROUGH SUN.
 
$$
MUNDELL