000
AXPZ20 KNHC 100351
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU JAN 10 2008

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 
0330 UTC.
 
...ITCZ...
INTERTROPICAL CONVERGENCE ZONE...5N77W 6N83W 5N93W 6N118W 4N133W 
5N140W. NO SIGNIFICANT CONVECTION NOTED.

...DISCUSSION...
DOMINANT SURFACE FEATURE REMAINS 1026 MB HIGH PRES CENTERED NEAR 
28N134W. SHIP OBSERVATIONS AND SCATTEROMETER DATA SHOW BROAD 
AREA OF FRESH TO STRONG TRADES MAINLY W OF 120W S OF SURFACE 
HIGH. LARGE NW SWELL WILL CONTINUE TO PUSH INTO THE AREA. 
ALOFT...HIGHLY AMPLIFIED PATTERN IN PLACE WITH UPPER TROUGH 
EXTENDING FROM NRN BAJA SW TO 9N140W...AHEAD OF AN UPPER RIDGE 
NE OF THE HAWAIIAN ISLANDS. DRY MID/UPPER LEVEL AIR IS ADVECTING 
IN THE N TO NE FLOW ALOFT BETWEEN THE TWO FEATURES. DRY 
MID/UPPER LEVEL SLY FLOW IS ALSO PRESENT GENERALLY W OF 
110W...IN PART ORIGINATING IN DRY UPPER AREA S OF THE EQUATOR.

THROUGH FRIDAY...THE UPPER RIDGE IS IN THE PROCESS OF BUILDING 
E...TO THE NW OF THE TROUGH...CUTTING OFF AN UPPER LOW TONIGHT 
NEAR 16N128W TO FORM A REX BLOCK. THIS WILL RESULT IN LITTLE 
CHANGE IN THE SURFACE PATTERN OVER THE NEXT COUPLE OF DAYS. THE 
SURFACE HIGH WILL SHIFT A LITTLE E...ALLOWING FRESH NLY FLOW OFF 
THE NRN BAJA COAST TO DIMINISH THROUGH THU. BROAD AREA OF TRADES 
S OF THE HIGH WILL PERSIST. A FEW SHOWERS MAY EMERGE ALONG THE 
ITCZ...SE OF THE UPPER LOW...MAINLY BETWEEN 110W AND 125W. 
ANOTHER SURGE OF LARGE NW SWELL WILL MOVE INTO THE FAR NW CORNER 
OF THE DISCUSSION AREA BY LATE TOMORROW.

CHRISTENSEN