000 AXPZ20 KNHC 222207 TWDEP TROPICAL WEATHER DISCUSSION NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 2205 UTC THU MAY 22 2008 TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM THE EQUATOR TO 32N...EAST OF 140W. BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 2145 UTC. ...TROPICAL WAVES... TROPICAL WAVE N OF 3N ALONG 80W MOVING W AT 10 KT. WAVE ENCOUNTERING BROAD AREA OF WLY LOW LEVEL FLOW AND VERY DIFFICULT TO TRACK. BROAD CYCLONIC TURNING NEAR WAVE AXIS UNDER RIDGE ALOFT WITH ASSOCIATED UPPER DIFFLUENCE ENHANCING CONVECTION OVER ENTIRE AREA FROM 03N IN E PAC TO ALONG 15N IN WRN CARIBBEAN SPREADING W OVER CENTRAL AMERICA TO ALONG 92W. ...ITCZ... AXIS ALONG 08N83W TO 09N100W TO 11N118W TO 04N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION FROM 03N TO 08N E OF 88W AND WITHIN 90-120 NM OF AXIS FROM 110W TO 126W. SCATTERED MODERATE WITHIN 120 NM OF AXIS FROM 88W TO 100W. ...DISCUSSION... UPPER LEVEL CYCLONIC VORTEX OVER SRN NEVADA HAS BROAD TROUGH MAINTAINING A DRY FLOW OVER BASIN N OF 20N FROM 90W-130W. TROUGH SPLITS E PAC RIDGING INTO TWO SEPARATE ANTICYCLONES WITH THE WESTERNMOST GYRE NEAR 07N142W AND THE EASTERNMOST ONE OVER THE WRN CARIBBEAN NEAR 18N81W. MODERATE DIFFLUENT PATTERN ENHANCING DEEP CONVECTION NEAR 10N122W BUT NO SIGNIFICANT CYCLONIC TURNING NOR ORGANIZATION HAS BEEN DETECTED. SECOND AREA OF DIFFLUENT AIR MASS SEEN BETWEEN BROAD TROUGH AND CARIBBEAN RIDGE NEAR 10N113W WITH SMALL AREA OF DEEP CONVECTION ALSO LACKING ORGANIZATION. OTHER CONVECTIVE ACTIVITY NOTED ALONG ITCZ E OF 100W AS CARIBBEAN RIDGE DRAWS WARM TRPCL MOISTURE INTO E PAC. ONLY SCATTERED TSTMS NOTED BUT WITH TRPCL WAVE ENTERING BASIN THAT RIDGE ALOFT MIGHT HELP ITS DEVELOPMENT. AT THE SURFACE... STRONG HIGH PRES CENTER WELL TOO FAR N OF AREA TO SUPPORT NELY TRADES HAS NEVERTHELESS EXTENDED THE FETCH OF STRONG NLY WINDS ALONG CALIFORNIA COAST WITH GALE FORCE JUST N OF 30N AND OCNL GUSTS TO GALES S OF 30N. LARGE LONG PERIOD SWELL..RANGING FROM 9 TO 12 SECONDS...OBSERVED AS HIGH AS 20 FT ENCROACHED INTO E PAC N OF 20N AND EVENTUALLY REACH 15N. STRONG GUSTY WINDS ALSO SPILLING INTO GULF OF CALIFORNIA THROUGH MOUNTAIN GAPS. $$ WALLY BARNES