000 AXPZ20 KNHC 240940 TWDEP TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 1005 UTC FRI JAN 24 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0900 UTC. ...SPECIAL FEATURES... GULF OF TEHUANTEPEC GALE WARNING...WINDS ARE CURRENTLY VARIABLE AT LIGHT TO MODERATE LEVELS WITH 2-4 FT SEAS IN THE IMMEDIATE GULF OF TEHUANTEPEC AREA. HOWEVER ANOTHER COLD FRONT WILL MOVE THROUGH THE GULF OF MEXICO WITH STRONG HIGH PRES BUILDING BEHIND THE FRONT. THIS WILL TIGHTEN THE PRES GRADIENT ACROSS SOUTHERN MEXICO WITH GALE FORCE WINDS FORECAST THROUGH THE GULF OF TEHUANTEPEC LATER THIS MORNING. WINDS WILL DECREASE TO BELOW GALE FORCE SUN NIGHT. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... MONSOON TROUGH FROM 9N85W TO 5N90W TO 5N94W. ITCZ FROM 5N94W TO 4N105W TO 1010 MB LOW PRES 10N122W TO 7N140W. SCATTERED MODERATE CONVECTION FROM 7N-11N BETWEEN 112W-120W. ...DISCUSSION... UPPER LEVEL TROUGH OVER THE FAR NW PORTION OF THE DISCUSSION AREA WITH AXIS FROM 29N140W TO 17N136W. ASSOCIATED SURFACE COLD FRONT EXTENDS FROM 32N138W TO 25N137W TO 20N140W. SCATTERED SHOWERS...WITH AREAS OF HEAVY RAIN...N OF 19N W OF 135W. DOWNSTREAM UPPER LEVEL RIDGE EXTENDS FROM 32N133W TO 19N130W. MODERATE TO STRONG SUBSIDENCE WITH DRY AND STABLE AIR AT THE MIDDLE AND UPPER LEVELS IS WITHIN 220 NM E OF THE RIDGE AXIS AND S OF 20N W OF 125W. AN UPPER LEVEL TROUGH E OF THE RIDGE EXTENDS FROM A CYCLONIC CIRCULATION NEAR 32N127W TO 12N120W. A BROAD UPPER LEVEL RIDGE IS E OF THE TROUGH. LARGE NW SWELL IS ACROSS THE AREA S OF A LINE 32N119W TO 9N140W WITH SEAS UP TO 19 FT IN THE NW PORTION OF THE AREA. NLY WINDS 20-25 KT THROUGH THE GULF OF PANAMA WITH DECREASE FRI NIGHT. NE WINDS 20-25 KT BLOWING THROUGH THE GULF OF PAPAGAYO WILL DECREASE TO 20 KT OR LESS SAT NIGHT. $$ DGS