000
AXPZ20 KNHC 022139
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL                          
2205 UTC SUN FEB 02 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.                              
 
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...              

MONSOON TROUGH EXTENDS FROM 08N84W TO 05N92W TO 05N97W. ITCZ 
EXTENDS FROM 05N97W TO 07N120W TO 06N140W. SCATTERED MODERATE 
CONVECTION IS FROM 06N TO 09N BETWEEN 123W AND 130W. 

...DISCUSSION...

AN UPPER LEVEL RIDGE IS OVER THE NW CORNER WITH AXIS ALONG 126W 
N OF 10N. AN UPPER LEVEL TROUGH IS FURTHER E WITH AXIS FROM 
1N113W TO 20N 110W. ISOLATED MODERATE CONVECTION IS W OF THE 
AXIS FROM 10N TO 15N BETWEEN 114W AND 120W. A LARGE UPPER LEVEL 
RIDGE IS E OF 100W WITH AXIS ALONG 80W. ISOLATED MODERATE 
CONVECTION IS W OF COLOMBIA FROM 1N TO 9N BETWEEN 77W AND 100W. 

A 1024 MB HIGH IS CENTERED JUST N OF THE AREA NEAR 30N136W. A 
SURFACE RIDGE AXIS EXTENDS SE TO 20N110W. A SURFACE TROUGH IS 
OVER THE TROPICS FROM 06N126W TO 13N122W. THE PRESSURE GRADIENT 
REMAINS WEAK OVER WESTERN PART OF THE FORECAST AREA. THIS IS 
KEEPING WINDS 20 KT OR LESS OVER THE WESTERN PART OF THE 
FORECAST AREA. A SET OF NW SWELL IS OVER THE NW CORNER PRODUCING 
COMBINED SEAS NEAR 8 FT NW OF LINE 30N135W TO 27N140W. THIS 
SWELL TRAIN WILL MOVE ESE SUN AND MON AND BUILD TO 10 FT. 

$$
FORMOSA