000
AXPZ20 KNHC 280332
TWDEP 

TROPICAL WEATHER DISCUSSION     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU DEC 28 2006

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 
0315 UTC.

...ITCZ...
AXIS 7N77W 6N115W 7N140W. SCATTERED MODERATE WITHIN 45 NM OF 
AXIS W OF 128W.

...DISCUSSION...
PATTERN HAS BECOME MORE AMPLIFIED THIS AFTERNOON AS UPPER TROUGH 
PUSHES SE INTO SRN CALIFORNIA AND NRN BAJA...AHEAD OF A BUILDING 
RIDGE PUSHING E ALONG 141W. AT THE SURFACE...A WEAKENING COLD 
FRONT ASSOCIATED WITH THE UPPER TROUGH EXTENDS ALONG 30N118W TO 
27N127W TO 29N137W. SATELLITE IMAGERY SHOWS LARGE FIELD OF 
STRATO CUMULUS BEHIND THE FRONT. MORNING QUIKSCAT IMAGERY AND 
SHIP OBSERVATIONS SHOW FRESH TO STRONG NLY WINDS BEHIND THE 
FRONT AS WELL...GENERALLY N OF 25N AND E OF 130W. NLY WINDS ARE 
LIKELY INCREASING OVER NRN GULF OF CALIFORNIA BEHIND THE FRONT 
THIS EVENING. SURFACE HIGH PRES ASSOCIATED WITH INCOMING UPPER 
RIDGE...GENERALLY N OF 20N AND W OF 125W IS MAINTAINING FRESH TO 
STRONG TRADES FROM 5N TO 20N W OF 125W. ELSEWHERE LARGE NLY 
SWELL PERSISTS OVER ENTIRE FORECAST AREA W OF 115W. THE HIGH 
PRES WILL SLOWLY SHIFT E AHEAD ANOTHER COLD FRONT THAT WILL 
APPROACH THE NW FORECAST AREA BY LATE THU.

REGARDING GAP WINDS...WINDS ARE NOW JUST BELOW GALE FORCE OF 
GULF OF TEHUANTEPEC AS HIGH PRES OVER THE GULF OF MEXICO WEAKENS 
AND SHIFTS E. STRONG TO NEAR GALE WINDS WILL GRADUALLY DIMINISH 
IN TEHUANTEPEC AREA TONIGHT...ALONG WITH LARGE NELY SWELL. 
STRONG TO NEAR GALE ELY WINDS ARE PENETRATING INTO THE GULF OF 
PAPAGAYO AND EXTENDING INTO PACIFIC WATERS AS FAR W AS 95W PER 
QUIKSCAT AND SHIP OBSERVATIONS.

$$
CHRISTENSEN