000
AXPZ20 KNHC 080319
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU JUL 08 2010

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 
0245 UTC.

...ITCZ...
THE AXIS EXTENDS FROM 12N85W TO 12N100W TO 07N140W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION IS NOTED WITHIN 120 NM 
EITHER SIDE OF A LINE FROM 08N83W TO 07N90W TO 10N104W.   

...DISCUSSION...
AN UPPER LEVEL ANTICYCLONE IS CENTERED NEAR 27N125W WITH A RIDGE 
W TO WELL BEYOND 24N140W...AND A RIDGE ALSO EXTENDS E TO NEAR 
27N110W. THE UPPER LEVELS ARE VERY DRY N OF 20N W OF 110W. 
   
AN UPPER CYCLONE IS OVER THE DEEP TROPICAL PACIFIC AT 05N139W. 
SOME UPPER LEVEL MOISTURE IS EVAPORATING ALONG 20N BETWEEN 127W 
AND 147W. OTHERWISE...THE UPPER LEVELS ARE DRY S OF 20N W OF 
107W.

A BROAD UPPER ANTICYCLONE IS CENTERED OVER THE SW GULF OF MEXICO 
WITH ITS ENVELOPE OF ANTICYCLONIC FLOW COVERING THE AREA S OF 
20N E OF 120W. THE ASSOCIATED UPPER DIFFLUENCE IS ENHANCING 
CONVECTION ALONG THE ITCZ AS DESCRIBED...AND ALSO OVER CENTRAL 
AMERICA. THE DEBRIS MOISTURE FROM THESE CONVECTIVE AREAS IS 
SPREADING W OVER THE DISCUSSION AREA N OF 07N E OF 107W.

A SURFACE RIDGE EXTENDS FROM 31N140W TO NEAR 13N115W. NORTHERLY 
SWELLS...DRIVING SEAS UP TO 9 FT...ARE FOUND OVER THE WATERS N 
OF 25N BETWEEN 125W AND 135W...AND SHOULD DIMINISH BELOW 8 FT 
LATE TONIGHT. NW WINDS IN THE 15 TO 20 KT RANGE ARE EXPECTED TO 
CONTINUE ALONG THE W COAST OF THE SOUTHERN BAJA PENINSULA S OF 
26N FOR A FEW DAYS. 

SOUTHERLY WINDS IN THE 15 TO 20 KT ARE EXPECTED TO CONTINUE OVER 
THE WATERS S OF 10N FOR AT LEAST THE NEXT FEW DAYS. THESE 
SOUTHERLY WINDS COMBINED WITH SOUTHERLY CROSS EQUATORIAL SWELL 
ARE RESULTING IN SEAS TO 10 FT OVER THE ENTIRE AREA S OF 10N.

$$
NELSON