000
AXPZ20 KNHC 102212
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC THU JAN 10 2008

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN
FROM THE EQUATOR TO 32N...EAST OF 140W. 

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2130 UTC.
 
...ITCZ...
INTERTROPICAL CONVERGENCE ZONE...2N78W 5N86W 4N95W 7N130W 
4N140W. NO SIGNIFICANT CONVECTION.

...DISCUSSION...
AN UPPER RIDGE IS BUILDING GENERALLY E-W ALONG 22N...N OF A 
CUTOFF UPPER LOW NEAR 15N132W. AN UPPER TROUGH EXTENDS FROM N 
CENTRAL MEXICO TO SOUTHERN BAJA. A 1027 MB SURFACE HIGH BENEATH 
THE UPPER RIDGE CENTERED NEAR 30N131W WILL SHIFT SLOWLY NE OVER 
THE NEXT COUPLE OF DAYS. SCATTEROMETER DATA SHOW FRESH NELY 
TRADES REMAIN ACTIVE S OF THE SURFACE HIGH...WITH MODERATE TO 
FRESH NLY FLOW OFF THE BAJA COAST ON THE E SIDE OF THE SURFACE 
RIDGE. DRY NLY MID/UPPER FLOW IS EVIDENT ON THE W SIDE OF THE 
UPPER LOW W OF 130W. A FEW MINOR SHOWERS CONTINUE ALONG THE ITCZ 
ON THE E SIDE OF THE UPPER LOW...FROM 110W TO 130W. FURTHER 
E...A WEAK UPPER TROUGH EXTENDS ALONG ROUGHLY 92W S OF 12N. WEAK 
DIVERGENCE ALOFT IS ALLOWING A FEW SHOWERS NEAR 5N86W. OTHERWISE 
FAIRLY DRY MID/UPPER LEVELS IS INHIBITING ORGANIZED CONVECTION. 
MEANWHILE LARGE SWELL CONTINUES TO PUSH INTO THE AREA FROM THE 
NW PACIFIC. LITTLE CHANGE IS EXPECTED OVER THE NEXT COUPLE OF 
DAYS. 

CHRISTENSEN