000
AXPZ20 KNHC 131547
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC THU DEC 13 2007

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 
1515 UTC.
 
...ITCZ...

INTERTROPICAL CONVERGENCE ZONE AXIS IS ALONG 7N77W 7N95W 10N115W 
9N130W 8N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION IS 
LOCATED WITHIN A 60 NM RADIUS OF 9.5N109W AND ALSO FROM 8N TO 
10N BETWEEN 124W AND 127W.

...DISCUSSION...

W OF 105W...
A MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION...ABOUT 10 DEGREES IN 
DIAMETER...IS CENTERED OFF THE SOUTHERN CALIFORNIA COAST NEAR 
32N118W...MOVING SE 10 TO 15 KNOTS. FLOW ALOFT BECOMES 
ANTICYCLONIC OVER THE NW PART OF THE DISCUSSION AREA ROUGHLY N 
OF 28N W OF 130W. FURTHER SOUTH A LARGE AREA OF WEST 
SOUTHWESTERLY FLOW ALOFT IS LOCATED FROM ABOUT 15N TO 28N 
BETWEEN 115W TO BEYOND 140W. SATELLITE CLOUD DRIFT WINDS FROM 
THE GOES 11 SATELLITE INDICATE WIND SPEEDS OF 60 TO 70 KNOTS W 
OF 125W AND WINDS ABOUT 10 KNOTS LESS FURTHER E. THE FLOW AT THE 
UPPER LEVELS BECOMES ANTICYCLONIC OVER THE DEEP TROPICS S OF 15N 
W OF 105W. AT THE SURFACE NE TO E WINDS OF 20 TO 25 KNOTS ARE 
LOCATED N OF 8N W OF 128W. THESE CONDITIONS WILL PERSIST OVER 
THE NEXT TWO DAYS.

E OF 105W...
A MIDDLE/UPPER LEVEL ANTICYCLONIC CIRCULATION IS CENTERED OVER 
SOUTHERN CENTRAL AMERICA IN THE VICINITY OF 8N82W. WINDS ALOFT 
OVER THE PACIFIC ARE PREDOMINATELY SE TO S WITH THE STRONGEST 
FLOW AS MEASURED BY SATELLITE CLOUD DRIFT WINDS BETWEEN 95W AND 
100W.
  
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CAB