000
AXPZ20 KNHC 251553
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SAT OCT 25 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...
THE ITCZ AXIS IS CENTERED ALONG 09N84W TO 07N95W TO 12N107W TO 
10N120W TO 12N130W TO 09N140W. SCATTERED MODERATE IS FROM 11N TO 
14N BETWEEN 88W AND 91W. SCATTERED MODERATE IS WITHIN 60 NM OF 
THE AXIS BETWEEN 94W AND 100W...BETWEEN 105W AND 110W...AND 
BETWEEN 114W AND 121W. SCATTERED MODERATE TO ISOLATED STRONG IS 
FROM 09N TO 14N BETWEEN 124W AND 129W...AND FROM 10N TO 12N 
BETWEEN 131W AND 134W.

...DISCUSSION...
A LARGE UPPER LEVEL CYCLONIC CIRCULATION IS OVER THE FAR NW 
PORTION OF THE DISCUSSION AREA NEAR 30N140W. NO SIGNIFICANT 
WEATHER ASSOCIATED WITH THIS FEATURE...EXCEPT FOR SOME HIGH 
LEVEL MOISTURE AROUND THE CENTER OF THE CIRCULATION. DOWNSTREAM 
RIDGE EXTENDS FROM 32N122W TO AND UPPER LEVEL ANTICYCLONIC 
CIRCULATION NEAR 13N130W. DIFFLUENT FLOW S OF THE ANTICYCLONE IS 
ENHANCING CONVECTIVE ACTIVITY ALONG THE ITCZ. MID/UPPER LEVEL 
TROUGH WITH AXIS EXTENDS FROM SE NEW MEXICO ACROSS NW MEXICO TO 
THE SOUTHERN TIP OF BAJA CALIFORNIA TO 15N113W. UPPER LEVEL 
ANTICYCLONIC CIRCULATION IS CENTERED OVER THE NW CARIBBEAN WITH 
RIDGE EXTENDING ACROSS BELIZE AND GUATEMALA TO 12N100W.

THE REMNANTS LOW OF T.D. SEVENTEEN-E...1010 MB...CENTERED NEAR 
17N109W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS E 
OF THE CENTER FROM 17N TO 19N BETWEEN 105W AND 109W. SURFACE 
RIDGE HAS AXIS FROM 32N133W TO 20N110W. BROKEN TO OVERCAST 
STRATOCUMULUS CLOUDS ARE WITHIN THE RIDGE N OF 17N W OF 120W.

$$
FORMOSA