000
AXPZ20 KNHC 071457
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC MON APR 07 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 
1445 UTC.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 7N77W 4N90W 6N110W 3N125W 5N140W. 
SCATTERED MODERATE ISOLATED STRONG CONVECTION IS LOCATED FROM 4N 
TO 8N E OF 80W...WITHIN 60 NM EITHER SIDE OF A 8N113W 6N118W 
LINE...AND FROM 3N TO 7N W OF 135W.

...DISCUSSION...

W OF 105W...
A LARGE MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS CENTERED 
ABOUT 300 NAUTICAL MILES W OF THE DISCUSSION AREA NEAR 25N145W. 
THIS FEATURE HAS BEEN NEARLY STATIONARY FOR THE PAST 24 HOURS. A 
LARGE AREA OF SOUTHWESTERLY WINDS ALOFT COVERS THE AREA N OF 
ABOUT 10N W OF 125W. THE FLOW ALOFT BECOMES WESTERLY FURTHER 
DOWNSTREAM N OF 20N E OF 125W INTO MEXICO. THE STRONGEST WINDS 
ARE LOCATED N OF 30N AND ARE IN THE 60 TO 70 KNOT RANGE. AN 
UPPER LEVEL TROPICAL RIDGE HAS ITS AXIS LOCATED ALONG 15N 
BETWEEN 105W AND 125W. STRONG SUBSIDENCE AS DEPICTED BY 
SATELLITE WATER VAPOR IMAGERY IS ASSOCIATED WITH THE RIDGE. AT 
THE SURFACE TRADE WIND EASTERLIES TO 20 KNOTS ARE LOCATED FROM 
6N TO 22N W OF 120W. NORTHERLY WINDS TO 20 KNOTS ARE LOCATED OFF 
THE BAJA CALIFORNIA COAST.  

E OF 105W...
MOSTLY LIGHT WINDS ALOFT COVER THE AREA E OF 105W INTO CENTRAL 
AND SOUTH AMERICA WITH THE STRONG SUBSIDENCE MENTIONED ABOVE 
CONTINUING OVER THE EASTERN PART OF THE DISCUSSION AREA. AT THE 
SURFACE WINDS WILL REMAIN BELOW 20 KNOTS FOR THE NEXT 48 HOURS.
  
$$
CAB