000 AXPZ20 KNHC 310339 TWDEP TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 0405 UTC FRI JAN 31 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... MONSOON TROUGH EXTENDS FROM 04N77W TO 05N89W. ITCZ EXTENDS FROM 05N89W TO 03N100W TO 05N114W TO 04N120W TO 06N140W. SCATTERED MODERATE CONVECTION IS FROM 05N TO 13N BETWEEN 106W AND 118W...AND FROM 06N TO 10N BETWEEN 131W AND 140W. ...DISCUSSION... AN UPPER LEVEL RIDGE IS OVER THE NW CORNER WITH AXIS FROM 10N135W TO 30N135W. A CUTOFF UPPER LEVEL LOW IS CENTERED NEAR 12N119W. UPPER LEVEL DIFFLUENCE E OF THE CENTER IS ENHANCING CONVECTION FROM 05N TO 15N BETWEEN 107W AND 118W. FURTHER E...A LARGE UPPER LEVEL RIDGE IS E OF 100W WITH AXIS ALONG 80W. STRONG SUBSIDENCE IS E OF 100W. ON THE SURFACE...A WEAK RIDGE PREVAILS ACROSS NORTHWESTERN WATERS N OF 20N W OF 120W...SUPPORTING MODERATE TO FRESH TRADES W OF 120W AND 4-5 FT WIND WAVES. LINGERING NW SWELL W OF 125W WILL CONTINUE TO SHRINK IN SIZE AND DECAY THROUGH FRI. COMBINED COMPONENT OF NW SWELL AND WIND WAVES WILL PRODUCE 8-9 FT SEAS FROM 06N-20N W OF 130W THROUGH SAT. PLUME OF NE SWELL GENERATED BY HIGH WINDS DOWNSTREAM FROM GULFS OF TEHUANTEPEC AND PAPAGAYO WILL DOMINATE SEAS E OF 100W. FRESH TO STRONG NW WINDS NEAR THE COAST OF SOUTHERN CALIFORNIA AND NORTHERN BAJA WILL PRODUCE AN AREA OF HIGH SEAS TO 9 FT N OF 28N BETWEEN 118W AND 125W BY SAT AFTERNOON. 20-25 KT NE WINDS ARE OVER THE GULF OF TEHUANTEPEC. WINDS ARE FORECAST TO DECREASE TO LESS THAN 20 KT FRI AFTERNOON. 20-30 KT NE WINDS WINDS ARE EXPECTED OVER THE GULF OF PAPAGAYO FRI WITH SEAS TO 9 FT. WINDS WILL PULSE 20-25 KT THROUGH SAT AFTERNOON WITH SEAS 8 TO 10 FT. $$ FORMOSA