000 AXPZ20 KNHC 250235 TWDEP TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 0405 UTC SAT JUL 25 2015 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 0100 UTC. ...SPECIAL FEATURES... THE CENTER OF POST-TROPICAL REMNANT LOW FELICIA WAS LOCATED NEAR 23.4N 120.3W 1008 MB AT 0300 UTC JUL 25 MOVING NW OR 305 DEG AT 11 KT. MAXIMUM SUSTAINED WINDS WERE 25 KT GUSTS 35 KT. THERE WAS NO SIGNIFICANT DEEP CONVECTION NOTED NEAR THE CENTER. THE REMNANTS OF FELICIA SHOULD BE STEERED NW BY THE FLOW TO THE SW OF A MID-LEVEL HIGH PRESSURE AREA THROUGH TONIGHT THEN TURN W AND DISSIPATE INTO THE LOW-LEVEL EASTERLY FLOW. SEE THE FINAL NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP2/WTPZ22 KNHC FOR MORE DETAILS. ...TROPICAL WAVES... A TROPICAL WAVE WAS ANALYZED ALONG 85W N OF 07N. THE WAVE WAS MOVING W AROUND 20 KT. DEEP CONVECTION ASSOCIATED WITH THE WAVE WAS FOUND NEAR THE BORDER OF CENTRAL NICARAGUA AND HONDURAS. A TROPICAL WAVE WAS ANALYZED ALONG 94W FROM 07N-18N. THE WAVE WAS MOVING W AROUND 10-15 KT. SCATTERED MODERATE TO STRONG CONVECTION WAS WITHIN 90 NM EITHER SIDE OF THE WAVE N OF 13N INCLUDING OVER SOUTHERN MEXICO AND THE GULF OF TEHUANTEPEC. A TROPICAL WAVE WAS ANALYZED ALONG 114W FROM 08N TO 16N. THE WAVE WAS MOVING W AROUND 20 KT. SCATTERED MODERATE WITH ISOLATED STRONG CONVECTION WAS FROM 02N-13N BETWEEN 105W-122W. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... NO MONSOONAL CIRCULATION IS CURRENTLY EVIDENT. THE ITCZ AXIS WAS ANALYZED FROM 09N97W TO 09N105W TO 11N112W TO 06N123W TO 12N134W TO 12N144W. ISOLATED MODERATE CONVECTION WAS WITHIN 300 NM N AND 390 NM S OF THE AXIS W OF 129W. ...DISCUSSION... A RIDGE IS BUILDING ACROSS THE N WATERS MAINLY N OF 15N W OF FELICIA. THE PRESSURE GRADIENT BETWEEN THE RIDGE AND LOWER PRESSURE IN THE VICINITY OF THE ITCZ HAS BROUGHT MODERATE TO FRESH TRADE WINDS TO THE AREA FROM 12N-23N W OF 125W. THIS AREA OF TRADES IS FORECAST TO EXPAND SLIGHTLY OVER THE NEXT TWO DAYS. SEAS HERE ARE TO 8 FT IN NE WIND WAVES AND MIXED SE AND SW SWELL. NEW SW SWELL WILL PUSH INTO THE WEST-CENTRAL WATERS SAT. SEAS WILL BUILD TO 9 FT IN THE AREA DOWNWIND OF THE STRONGEST TRADES. THE PRESSURE GRADIENT WILL INCREASE SUN BETWEEN THE SUBTROPICAL RIDGE AND DEEP-LAYERED TROUGHING BUILDING OVER THE SW UNITED STATES. MODERATE TO FRESH NW WINDS ARE EXPECTED OFF THE PACIFIC COAST OF THE BAJA CALIFORNIA PENINSULA BY LATE SUN...WITH SEAS BUILDING TO 8 FT IN MIXED SW AND W SWELL N OF 28N. GAP WINDS... GULF OF PAPAGAYO...A SOUTHERLY DISPLACED RIDGE AXIS IN THE SW N ATLC AND GULF OF MEXICO IS INCREASING THE PRESSURE GRADIENT BETWEEN IT AND WEAK TROUGHING TO THE S OF THE GULF OF PAPAGAYO. OFFSHORE NE WINDS ARE EXPECTED TO BRIEFLY PULSE TO 20-25 KT WITH THE ASSISTANCE OF NOCTURNAL DRAINAGE FLOW OVERNIGHT TONIGHT...WITH SEAS BUILDING TO 10 FT...AND AGAIN TO A LESSER EXTENT OVERNIGHT SAT NIGHT. $$ SCHAUER