HAWAII EXTENDED FORECAST DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 708 AM EDT MON APR 09 2012 VALID 00Z TUE APR 10 2012 - 00Z TUE APR 17 2012 SFC HIGH PRESSURE CURRENTLY TO THE NORTH OF HAWAII WILL WEAKEN AND SLIDE SOUTHEASTWARD THIS WEEK AHEAD OF AN UPPER TROUGH CENTERED ALONG 165W BY 12Z/13. TRADES WILL SUBSIDE THROUGH THE WEEK AND MOISTURE WILL BE LIMITED WITH PWS NEAR 0.75 IN. THE 00Z GFS/GEFS MEAN ARE A BIT QUICKER WITH THE TROUGH THAN THE 00Z ECMWF/EC ENS MEAN ALONG 40N WHICH WOULD BRING THE TAIL END OF THE FRONT TOWARD KAUAI BY SATURDAY OR EARLY SUNDAY. REGARDLESS... MOISTURE INCREASES OVER THE WEEKEND OVER THE STATE BUT FRONTAL PRECIPITATION STAYS NORTH OF THE ISLANDS IN THE ECMWF FORECAST WHILE THE GFS BRINGS IT FARTHER SOUTH. FRACASSO