000
AXPZ20 KNHC 090908
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC TUE NOV 09 2010

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W.

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...ITCZ...
THE INTERTROPICAL CONVERGENCE ZONE AXIS EXTENDS ALONG AXIS 
08N83W TO 07N90W TO 11N118W TO 09N130W TO 10N140W. SCATTERED 
MODERATE CONVECTION WITHIN 60 NM S OF AXIS BETWEEN 100W AND 
104W. SCATTERED MODERATE CONVECTION WITHIN 90 NM S OF AXIS 
BETWEEN 126W AND 131W. 

...DISCUSSION...

HIGH PRESSURE 1030 MB IS CENTERED NEAR 33N145W WITH RIDGE 
EXTENDING TO 23N113W. THE PRESSURE GRADIENT BETWEEN THE RIDGE 
AND LOWER PRESSURE ALONG THE ITCZ IS SUPPORTING FRESH NE TRADE 
WINDS ROUGHLY N OF 12N W OF 125W. THE RIDGE WILL MAINTAIN 
THROUGH THE NEXT 48 HOURS...WITH FRESH TRADES CONTINUING ACROSS 
THIS AREA. A TIGHT PRESSURE GRADIENT BETWEEN THE RIDGE AND LOWER 
PRESSURE OVER THE SW CONUS IS SUPPORTING NLY WINDS OF 20 KT N OF 
27N E OF 125W TO THE WEST COAST OF BAJA CALIFORNIA. LARGE NW 
SWELL CONTINUES TO AFFECT THE AREA W OF 110W AND IS MIXING WITH 
SHORTER PERIOD NE TRADE WIND SWELL. THESE SWELLS WILL GRADUALLY 
DIMINISH ACROSS THE SOUTHERN PART OF THE AREA...WITH SEAS 
DIMINISHING BELOW 8 FT S OF 07N WITHIN 48 HOURS. 

GAP WINDS...
FRESH TO STRONG NLY WINDS CONTINUE TO PREVAIL ACROSS THE GULF OF 
TEHUANTEPEC. WINDS WILL VEER OVER THE GULF OF MEXICO TODAY WHICH 
WILL DECREASE THE WINDS PASSING THROUGH THE ISTHMUS OF 
TEHUANTEPEC. AS A RESULT...WINDS WILL DIMINISH BELOW 20 KT OVER 
THE GULF OF TEHUANTEPEC LATE TONIGHT. WINDS OVER THE SW 
CARIBBEAN HAVE DIMINISHED. AS A RESULT...WINDS FUNNELING THROUGH 
THE PASSES OF CENTRAL AMERICA WILL DECREASE...AND FRESH WINDS 
WINDS OVER THE GULF OF PAPAGAYO WILL DIMINISH BELOW 20 KT BY 
TONIGHT. 

$$
AL