000
AXPZ20 KNHC 051534
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC FRI SEP 05 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...

ITCZ AXIS IS CENTERED FROM 11N85W TO 11N110W TO 10N125W TO 
07N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION IS 
LOCATED WITHIN 70 NM EITHER SIDE OF LINE FROM 11N86W TO 14N102W.
SCATTERED MODERATE TO STRONG CONVECTION IS LOCATED WITHIN 90 NM 
OF 15N105.5W. SCATTERED MODERATE ISOLATED STRONG CONVECTION IS 
LOCATED WITHIN 75 NM OF 07.5N140W.

...DISCUSSION...

W OF 120W...
WATER VAPOR IMAGERY INDICATES STRONG SUBSIDENCE OVER THE AREA W 
OF 120W. A SHARP MIDDLE/UPPER LEVEL TROUGH AXIS IS LOCATED 
THROUGH 32N128W TO BEYOND 28N140W. THIS FEATURE IS FORECAST TO 
MOVE N OVER THE NEXT COUPLE OF DAYS WITH SOUTHWESTERLY WINDS 
LOCATED NW OF A LINE FROM NORTHERN BAJA CALIFORNIA TO 28N130W TO 
20N140W. A WEAK MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS 
CENTERED IN THE VICINITY OF 17N132W AND IS MOVING N ABOUT 15 KT. 
AT THE SURFACE SOUTHERLY SWELLS TO 10 FEET ARE LOCATED S OF 13N.

E OF 120W...
A LARGE MIDDLE/UPPER LEVEL ANTICYCLONIC CIRCULATION IS CENTERED 
OFF THE SOUTHERN COAST OF BAJA CALIFORNIA AND IS FORECAST TO 
MOVE LITTLE OVER THE NEXT TWO DAYS. WESTERLY WINDS ALOFT ARE 
LOCATED N OF ABOUT 22N E OF 120W INTO MEXICO AND EASTERLY TO 
NORTHEASTERLY FLOW EXTENDS S OF 20N ACROSS THE TROPICS TO THE 
EQUATOR. SATELLITE CLOUD DRIFT WINDS ARE AS HIGH AS 35 KT S OF 
10N E OF 100W. A QUIKSCAT PASS AT ABOUT 1230 UTC INDICATES S TO 
SW WINDS OVER MOST OF THE PACIFIC E OF 105W. A SURFACE TROUGH 
EXTENDS FROM THE MEXICAN COAST AT 104W TO 12N107W. A SURFACE LOW 
MAY DEVELOP ALONG THE TROUGH NEAR 17N109W WITHIN 24 HOURS.

$$
CAB