000
AXPZ20 KNHC 120312
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU JUN 12 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 
0230 UTC.

...TROPICAL WAVE...

TROPICAL WAVE IS ALONG 92W N OF 15N WHICH IS INLAND OVER S 
MEXICO AND THROUGH THE BAY OF CAMPECHE MOVING W 10-15 KT. WAVE 
IS BECOMING ILL-DEFINED IN THE E PACIFIC REGION. NO ASSOCIATED 
ACTIVITY IN THE AREA. 

...ITCZ...

INTERTROPICAL CONVERGENCE ZONE (ITCZ) IS CENTERED ALONG 08N81W 
TO 09N87W TO 06N97W TO 05N109W TO 07N119W TO 06N140W. ITCZ 
REMAINS RATHER QUITE TONIGHT WITH SOME SMALL AREAS OF SCATTERED 
MODERATE TO ISOLATED STRONG CONVECTION MOVING INTO THE COASTAL 
WATERS OF W PANAMA AND COSTA RICA AND WITHIN 150 NM OF THE ITCZ 
BETWEEN 114W TO 125W. 

...DISCUSSION...

E OF 115W...
A BROAD MID TO UPPER LEVEL HIGH IS CENTERED OVER S/CENTRAL 
MEXICO GIVING THE AREA E OF 110W EASTERLY UPPER FLOW. THE 
AFOREMENTIONED TROPICAL WAVE IS MOVING ACROSS THE AREA BUT WITH 
THE UPPER RIDGE REMAINING...WILL KEEP THE ANY CONVECTION TO THE 
E OF THE WAVE. AN UPPER LOW IS CENTERED JUST SW OF THE S TIP 
OF THE BAJA PENINSULA AND WILL MOVE NW UP THE W COAST OF BAJA 
OVER THE NEXT COUPLE OF DAYS. A SURFACE TROUGH IS FROM 10N94W TO 
4N96W AND WITH ABUNDANT LOW TO MID LEVEL MOISTURE REMAINING IN 
PLACE...SPORADIC SHOWERS/ISOLATED THUNDERSTORMS ARE POSSIBLE 
ALONG THE ITCZ IN THE VICINITY OF THE TROUGH AXIS OVER THE NEXT 
COUPLE OF DAYS. 

W OF 115W...  
A 1037 MB SURFACE HIGH PRES IS CENTERED NW OF THE DISCUSSION 
AREA NEAR 41N141W WITH A SURFACE RIDGE AXIS EXTENDING 20N125W.  
FRESH TO STRONG N TO NE WINDS PERSIST GENERALLY N OF 26N AND W 
OF 125W. THESE WINDS WILL DIMINISH ON FRI AS THE HIGH PRESSURE 
SHIFTS SW AND LOW PRESSURE TO THE EAST WEAKENS. SWELLS UP TO 10 
FT WILL PERSIST THROUGH FRI. AN UPPER TROUGH EXTENDS FROM 
28N131W TO 10N122W AND AN UPPER RIDGE IS TO THE W COVERING THE 
AREA TO W OF 140W.  

SWELLS UP TO 10 FT FROM S OF THE EQUATOR W OF 95W WILL CONTINUE 
TO PUSH N THROUGH SAT AND REMAIN THROUGH THE FIRST OF NEXT 
WEEK.  

$$
WALLACE