000
AXPZ20 KNHC 081612
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC TUE JAN 08 2008

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

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.
 
...ITCZ...
INTERTROPICAL CONVERGENCE ZONE...6N77W 4N93W 7N108W 7N140W. 
ISOLATED MODERATE CONVECTION WITHIN 75 NM OF AXIS FROM 120W TO 
133W.

...DISCUSSION...
UPPER LEVEL LONGWAVE TROUGH FROM NW MEXICO TO 15N140W MAINTAINS 
DRY HOLD NW OF AXIS.  MINOR AMOUNT OF MOISTURE ENTERS E PAC N OF 
25N W OF 126W OVER CREST OF APPROACHING BROAD MID-UPPER LEVEL 
RIDGE W OF BASIN.  NARROW RIDGE DOWNSTREAM FROM TROUGH WITH 
TILTED AXIS FROM 2N120W TO 17N105W BRINGS SWATH OF TRPCL 
MOISTURE NE OVER ITS CREST INTO CENTRAL MEXICO.  

NARROW UPPER LEVEL TROUGH FROM 17N100W TO CYCLONIC VORTEX AT 
2N103W COMPLETES REMAINDER OF WIND FLOW ALOFT. ISOLATED AND 
SMALL AMOUNTS OF MOISTURE ALONG ITCZ E OF 93W. 

AT THE SURFACE...
HIGH PRES 1026 MB AT 28N139W MAINTAINS STEADY ANTICYCLONIC FLOW 
RIDGING OVER AREA N OF 12N W OF 110W.  BRISK NE TRADES W OF 120W 
COMPOUND LARGE NW SWELL TRAINS SPREADING W OF 102W.

GULF OF PAPAGAYO GAP WINDS EXPECTED TO DIMINISH WITHIN NEXT 12 
HR AND SEAS REMAIN 8 FT OR UNDER.

$$
WALLY BARNES