000 AXPZ20 KNHC 300305 TWDEP TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 0405 UTC TUE DEC 30 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... THE MONSOON TROUGH EXTENDS FROM 08N83W TO 06N94W WHERE LOW LEVEL WINDS SUGGEST A TRANSITION TO ITCZ WHICH EXTENDS TO 05N117W 08N133W TO TO BEYOND 09N140W. SCATTERED MODERATE CONVECTION WAS NOTED WITHIN 60 NM OF THE ITCZ BETWEEN 125W AND 132W. ...DISCUSSION... A WEAK HIGH PRESSURE RIDGE EXTENDS OVER THE NE WATERS FROM 30N124W TO 18N108W. LOW PRESSURE IS CENTERED W OF THE AREA NEAR 29N142W. THE PRESSURE GRADIENT BETWEEN THE RIDGE AND LOW PRESSURE IS SUPPORTING FRESH TO NEAR GALE WINDS OVER THE NW WATERS. WHILE THE PRESSURE GRADIENT BETWEEN THE RIDGE AND LOWER PRESSURE IN THE VICINITY OF THE ITCZ IS MAINTAINING FRESH TRADES N OF THE ITCZ. THE SURFACE LOW WILL CONTINUE TO SHIFT EASTWARD INTO THE AREA OVER THE NEXT 24 HOURS. THIS WILL MAINTAIN THE NEAR GALE FORCE WINDS OVER THE NW WATERS THROUGH TUE. THE LOW WILL DISSIPATE BY WED WHICH WILL HELP TO DIMINISH WINDS TO 25 KT OVER THE NW WATERS BY WED. GULF OF TEHUANTEPEC...WINDS CONTINUE TO FUNNEL FROM THE GULF OF MEXICO THROUGH THE CHIVELA PASS INTO THE GULF OF TEHUANTEPEC. AS A RESULT...FRESH TO STRONG WINDS PREVAIL OVER THE GULF OF TEHUANTEPEC. FRESH TO STRONG WINDS WILL CONTINUE THROUGH TUE. HIGH PRESSURE WILL BUILD N OF THE AREA AND HELP TIGHTEN THE PRESSURE GRADIENT. THIS WILL INCREASE WINDS OVER THE GULF OF TEHUANTEPEC TO NEAR GALE FORCE BY LATE TUE. GULF OF PAPAGAYO...WINDS WILL PULSE TO FRESH TO STRONG DURING THE OVERNIGHT AND EARLY MORNING HOURS TONIGHT AND TUE NIGHT. $$ AL