000 AXPZ20 KNHC 260345 TWDEP TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 0405 UTC TUE JAN 26 2010 TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM THE EQUATOR TO 32N...EAST OF 140W. BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 0315 UTC. ...ITCZ... AXIS ALONG 05N77W TO 03N92W TO 06N111W TO 02N140W. SCATTERED MODERATE WITHIN 30 NM OF 05N104W. ...DISCUSSION... LARGE AMPLITUDE UPPER LEVEL TROUGH DIG S FROM 32N126W TO 07N140W QUICKLY TILTING NEGATIVELY AS POWERFUL SHORTWAVE WRAPS AROUND AXIS N OF 30N WITH 140 KT JET CORE. BROAD DOWNSTREAM RIDGE CREST ADVECTING LARGE AMOUNTS OF MOISTURE INTO NRN HALF OF CALIFORNIA AND OREGON AS DIVERGENCE PROMPTED BY SHORTWAVE ACTIVATES CONVECTION AT THE SURFACE. BOTTOM PART OF RIDGE REMAINS DRY S OF 22N DUE TO MODERATE TO STRONG SUBSIDING AIR ACROSS MOST OF E PAC BASIN...EXCEPT AS MENTIONED BELOW. DIMINISHING AMOUNTS OF TROPICAL MOISTURE...CONVECTION DEBRIS FROM ITCZ...S OF 05N E OF 86W RIDES NE INTO PANAMA AND COLOMBIA ALONG RIDGE CENTERED OVER SOUTH AMERICA. ELSEWHERE AT THE SURFACE... COLD FRONT EXTEND FROM 32N131W TO 26N140W. HIGH PRES CENTER 1020 MB AT 27N124W WITH RIDGE SW TO 25N135W BLOCKING SE PROGRESSION OF APPROACHING FRONT. FRESH NE TRADES CONTINUE AROUND S AND SW PERIPHERY OF RIDGE W OF 120W-127W WITH NW SWELLS PROPAGATING SE ACROSS E PAC WATERS W OF 95W. FRESH NW BREEZE IN GULF OF CALIFORNIA DIMINISH LATE TONIGHT. GAP WINDS... FRESH N WIND EXPECTED TO BEGIN CROSSING INTO GULF OF TEHUANTEPEC TONIGHT INCREASING TO GALE FORCE LATE TONIGHT OR EARLY TUE FOR A SHORT PERIOD OF TIME THEN DIMINISH TO STRONG N BREEZE THROUGH REST OF FORECAST PERIOD. FRESH E-NE TRADES ACROSS WRN CARIBBEAN EXPECTED TO FILTER INTO E PAC ACROSS GULF OF PAPAGAYO EARLY TUE THEN SPREAD ACROSS GULF OF FONSECA. EVENTUALLY...GULF OF PANAMA GETS ITS SHARE OF STRONG N WINDS SEEPING INTO E PAC WITHIN 24 HRS AND CONTINUE INTO WED. FOR ADDITIONAL INFORMATION PLEASE VISIT HTTP://WWW.HURRICANES.GOV/MARINE $$ WALLY BARNES