000
AXPZ20 KNHC 091550
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SAT FEB 09 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 ALONG 5N78W 2N92W 7N110W 9N125W 9N140W. SCATTERED 
STRONG CONVECTION FROM 7N TO 10N W OF 136W.

...DISCUSSION...

W OF 120W...
A LARGE BROAD MIDDLE/UPPER LEVEL RIDGE COVERS THE AREA W OF 120W 
FROM JUST N OF THE EQUATOR TO 32N. THE RIDGE AXIS IS ALONG 135W. 
THE STRONGEST WESTERLY WINDS WITHIN THIS FEATURE ARE FROM 22N TO 
28N AND ARE IN THE 50 TO 60 KNOT RANGE AS MEASURED BY SATELLITE 
CLOUD DRIFT WINDS. AT THE SURFACE NE TO E WINDS 20 TO 25 KT AND 
SEAS 8 TO 11 FT ARE LOCATED FROM 10N TO 21N W OF 120W.

E OF 120W...
A WELL-DEFINED MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS 
CENTERED NEAR 25N117W AND IS NEARLY STATIONARY. THE CIRCULATION 
IS ABOUT 10 DEGREES IN DIAMETER AND WATER VAPOR IMAGERY 
INDICATES STRONG SUBSIDENCE OVER THE W SEMICIRCLE. A TROF AXIS 
EXTENDS S FROM THE CIRCULATION TO ABOUT 5N115W WITH CYCLONIC 
FLOW LOCATED ABOUT FIVE DEGREES W OF THE AXIS AND TEN DEGREES E 
OF THE AXIS. OVER THE E PART OF THE DISCUSSION THE FLOW ALOFT IS 
GENERALLY SOUTHWESTERLY. 

$$
CAB