000 AXPZ20 KNHC 110330 TWDEP TROPICAL WEATHER DISCUSSION NWS NATIONAL HURRICANE CENTER MIAMI FL 0405 UTC FRI JAN 11 2013 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 IS ALONG 04N77W TO 05N92W. THE INTERTROPICAL CONVERGENCE ZONE AXIS EXTENDS FROM 05N92W TO 07N110W TO 09N120W TO 08N140W. SCATTERED MODERATE CONVECTION IS FROM 07N TO 10N BETWEEN 125W AND 131W. ...DISCUSSION... A DISSIPATING COLD FRONT EXTENDS FROM NEAR YUMA ARIZONA ACROSS THE FAR NORTHERN GULF OF CALIFORNIA THROUGH 26N123W TO 21N130W. A 2032 UTC OCEANSAT SCATTEROMETER PASS INDICATED FRESH TO NEAR GALE FORCE WINDS BEHIND THE FRONT...WITH THE STRONGEST WINDS PRESENT N OF 21N ALONG 140W. A STRAY 34 KT WIND OR TWO MAY EVEN BE PRESENT NEAR OR JUST W OF 140W WHERE A GALE WARNING IS IN PLACE STARTING TOMORROW AFTERNOON W OF THE DISCUSSION WATERS. LARGE LONG PERIOD MIXED NE AND NW SWELL UP TO 16 FT IS ALSO PROPAGATING IN BEHIND THE FRONT. THE SOUTHERN CALIFORNIA COAST WILL CONTINUE TO BE THREATENED BY HIGH SURF AND MINOR COASTAL FLOODING THROUGH SAT MORNING UNDER A PERSISTENT NW FETCH. A GALE WARNING IS ALSO IN PLACE N OF 30N IN THE NWS SAN DIEGO COASTAL WATERS AND THE OPC OFFSHORE WATERS FOR GUSTS OF 35-40 KT. WHILE THERE HAVE BEEN NO RECENT IN-SITU OR REMOTE SENSED DATA TO SUPPORT...FRESH TO STRONG SOUTHWESTERLY WINDS ARE PRESUMED TO BE OCCURRING N OF 29N AHEAD OF AND BEHIND THE FRONT IN THE GULF OF CALIFORNIA. THESE WINDS ARE FORECAST TO DIMINISH TO 20 KT OR LESS BY FRI AFTERNOON AS THE PRES GRADIENT RELAXES. THE FRONT WILL DEGENERATE INTO A REMNANT SHEAR LINE STRETCHING FROM 24N111W TO 20N114W TO 13N120W BY FRI EVENING...THEN FROM 23N110W TO 15N113W TO 08N120W BY SAT EVENING. WINDS WILL GRADUALLY DIMINISH TO 20 KT OR LESS IMMEDIATELY BEHIND THE BOUNDARY ALONG AND W OF THE COAST OF THE BAJA CALIFORNIA PENINSULA...WHILE MAINLY NW SWELLS TO 11 FT PERSIST ACROSS THAT SAME AREA. A SEPARATE AREA OF FRESH TO STRONG WINDS (NE-E TRADES) EXISTS WELL SW OF THE DECAYING FRONT FROM 09N TO 21N W OF 123W...ALONG WITH SEAS TO 11 FT. THIS AREA WILL MERGE WITH THE WINDS BEHIND THE FRONTAL BOUNDARY/SHEAR LINE BY FRI...AND WILL BE MAINTAINED BY AND BETWEEN A STRENGTHENING RIDGE ACROSS THE NW WATERS AND LOWER PRES ALONG THE ITCZ TO THE S. GAP WINDS...THE GULF OF PAPAGAYO WILL PULSE ON A DIURNAL CYCLE TONIGHT AND AGAIN FRI NIGHT...THEN WILL DIMINISH TO 20 KT OR LESS BY SAT NIGHT. EXPECT NE-E WINDS AT 20-25 KT AND SEAS TO 8 FT ACROSS THE WATERS E OF 91W...PRIMARILY DURING THE LATE NIGHT AND EARLY MORNING HOURS. A MINOR NORTHERLY 20-25 KT WIND EVENT IS NOW FORECAST IN THE GULF OF TEHUANTEPEC LATER TONIGHT DURING PEAK DRAINAGE FLOW... DIMINISHING BY FRI EVENING AS WINDS VEER E-SE NORTH OF THE AREA IN THE SW GULF OF MEXICO...AND EVENTUALLY IN THE GULF OF TEHUANTEPEC ITSELF BY THE END OF THE UPCOMING WEEKEND. $$ LEWITSKY