000
AXPZ20 KNHC 270941
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC WED JAN 27 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 
0915 UTC.

...ITCZ...

THE ITCZ AXIS ANALYZED ALONG 02.5N78W TO 02N82W TO 04N89W TO 
03N95W TO 04N105W TO 05N124W TO 03N140W. ISOLATED TO SCATTERED 
MODERATE CONVECTION WAS OCCURRING WITHIN 90 NM EITHER SIDE OF 
AXIS BETWEEN 103W AND 119W.


...DISCUSSION...

A HIGH AMPLITUDE UPPER LEVEL TROUGH PREVAILS ACROSS THE W PART 
OF THE AREA...WITH AXIS ALONG 30N119W TO 00N135W. UPPER LEVEL 
RIDGING PREVAILS E OF 104W. 

AT THE SURFACE...A COLD FRONT EXTENDS FROM 30N119W TO 25.5N132W. 
SURFACE HIGH PRESSURE 1020 MB BUILDS IN BEHIND THE FRONT 
CENTERED NEAR 30N134W. THE FRONT IS EXPECTED TO CONTINUE MOVING 
E AND SE...REACHING CENTRAL BAJA THIS AFTERNOON. FRESH NE TRADES 
CONTINUE S OF THE RIDGE OVER THE WATERS W OF 121W WITH THE 
ASSOCIATED NE SWELL COMPONENT MIXING WITH NW SWELLS PROPAGATING 
SE ACROSS THE PACIFIC WATERS W OF 88W. 

GAP WINDS...
N WINDS 25 TO 35 KT IN THE GULF OF TEHUANTEPEC ARE EXPECTED TO 
DIMINISH BELOW GALE THIS AFTERNOON/EVENING. NE TO E TRADES OVER 
THE SW CARIBBEAN ARE FUNNELING INTO THE GULF OF PAPAGAYO AT 20 
TO 30 KT AND ARE EXPECTED TO SPREAD NW TO INCLUDE THE GULF OF 
FONSECA TONIGHT INTO THU. NORTHERLY WINDS ARE SURGING THROUGH 
THE GULF OF PANAMA WITH LITTLE CHANGE EXPECTED THROUGH THU.

FOR ADDITIONAL INFORMATION PLEASE VISIT 
HTTP://WWW.HURRICANES.GOV/MARINE

$$
AL