000
AXPZ20 KNHC 260404
TWDEP 

TROPICAL WEATHER DISCUSSION     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC MON FEB 26 2007

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...ITCZ...
ITCZ AXIS ALONG  64N77W  6N83W  6N98W  3N118W  4N140W.  
SCATTERED MODERATE WITHIN 90 NM OF AXIS FROM 113W TO 128W.

...DISCUSSION...
UPPER LEVELS...
LARGE MID/UPPER LEVEL RIDGE WITH ANTICYCLONE CENTERED AT 2N92W 
DOMINATES FLOW ALOFT...EXCEPT MINOR UPPER TROUGH FROM 14N88W TO 
1N85W.  JET CORE OF 125 KT BRINGS PLENTY OF MOISTURE ACROSS E 
PAC AND CENTRAL MEXICO INTO THE GULF OF MEXICO WHERE COLD FRONT 
CONVERTS IT IMMEDIATELY INTO CONVECTION.  RIDGE KEEPS MOISTURE
N OF 16N W OF 113W AND FAIRLY DRY ELSEWHERE.  WINDS N OF 20N 
REMAIN QUASI-ZONAL BUT THAT WILL LIKELY CHANGE WITHIN 24 HRS AS 
UPPER LEVEL CYCLONIC VORTEX NOW 31N150W AND ITS ATTENDANT TROUGH 
TO 6N158W HEAD NE INTO FORECAST WATERS.  

AT THE SURFACE...LARGE HIGH PRES 1031 MB AT 32N145W DRIFT E WITH 
NE TRADES HOLDING STEADY THROUGH NEXT 24 HR.  LINGERING NW 
SWELLS FROM LOW PRES N OF AREA ENCROACH INTO E PAC BASIN ALL THE 
WAY TO THE EQUATOR W OF 108W. 

GAP WINDS...
MOST GAPS WINDS HAVE DIMINISH BELOW 20 KT EXCEPT STUBBORN GULF 
OF PAPAGAYO WHERE THEY COULD LAST 12 HRS MORE.

$$
WALLY BARNES