000
AXPZ20 KNHC 010228
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
0405 UTC TUE APR 01 2014

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.                           

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...           

ITCZ AXIS EXTENDS FROM 07N84W TO 04N90W TO 02N100W TO 07N125W TO 
04N140W. SCATTERED MODERATE CONVECTION IS WITHIN 60 NM OF THE 
AXIS BETWEEN 84W AND 91W. SCATTERED MODERATE TO STRONG 
CONVECTION IS FROM 05N TO 09N BETWEEN 123W AND 132W. SCATTERED 
MODERATE TO ISOLATED STRONG CONVECTION IS FROM 03N TO 06N W OF 
132W. 

...DISCUSSION...                                                

THE BASE OF AN UPPER LEVEL TROUGH HAS ENTERED THE NW CORNER N OF 
25N W OF 130W. A VERY LARGE UPPER LEVEL HIGH IS CENTERED IN THE 
TROPICS NEAR 11N115W. THIS HIGH EXTENDS FROM THE EQUATOR TO 30N 
BETWEEN 100W AND 140W. THE ITCZ IS HIGHLY ENHANCED W OF 123W DUE 
TO THE INTERACTION OF UPPER LEVEL DIVERGENCE AND LOW LEVEL 
CONVERGENCE. AN UPPER LEVEL TROUGH IS N OF 5N E OF 100W WITH 
VERY STRONG SUBSIDENCE. ITCZ CONVECTION IS THUS CONFINED TO 
WITHIN 60 NM OF AXIS BETWEEN 84W AND 91W.

THE TAIL END OF A DISSIPATING COLD FRONT IS NOW JUST N OF 30N 
BETWEEN 130W AND 140W AND IS BEING SUPPORTED BY THE UPPER LEVEL 
TROUGH. A NEW BATCH OF NW SWELL ASSOCIATED WITH THE FRONT WILL 
BRING SEAS TO AS HIGH AS 10 FT OVER THE FAR N CENTRAL PORTION OF 
THE AREA OVER THE NEXT 48 HOURS. SURFACE RIDGING REMAINS N OF 
15N W OF 120W. AN AREA OF 20-25 KT TRADEWINDS REMAIN FROM 07N TO 
17N W OF 130W AND WILL ALSO LAST FOR THE NEXT 48 HOURS. 

GAP WINDS...                                                   

GULF OF PAPAGAYO...WINDS WILL CONTINUE TO PULSE ABOVE ADVISORY 
CRITERIA IN THE GULF OF PAPAGAYO IN THE MORNING HOURS THROUGH 
THU. E WINDS 20 TO 25 KT WITH SEAS TO 9 FT ARE EXPECTED BASICLY 
FROM 10N TO 12N E OF 91W...INCLUDING THE GULF OF PAPAGAYO EVERY 
MORNING. PRESENTLY AN AREA OF NE SWELL IS DOWNWIND OF PAPAGAYO 
WITH SEAS ABOVE 8 FT. THIS AREA OF SWELL WILL CONTINUE TO 
PROPAGATE SW THROUGH TUE. 

$$
FORMOSA