HAWAII EXTENDED FORECAST DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 717 AM EDT MON MAY 21 2012 VALID 00Z TUE MAY 22 2012 - 00Z TUE MAY 29 2012 MODELS AND ENSEMBLES FORECAST UPPER RIDGING TO THE NORTH OF THE STATE TO STRENGTHEN THROUGH THURSDAY NEAR 35N/145W. SFC HIGH SHOULD DEEPEN TO NEAR 1033MB WHICH WILL INCREASE TRADES THROUGH THE WEEK. A WEAK UPPER LOW IS STILL FORECAST TO DRIFT WESTWARD SOUTH OF THE BIG ISLAND WEDNESDAY... BUT ONLY A SLIGHT INCREASE IN MOISTURE IS EXPECTED... WITH NO PRONOUNCED EFFECTS. TRADES WILL SLACKEN SOMEWHAT OVER THE WEEKEND AS THE HIGH WEAKENS A BIT. ANY SUBSTANTIAL MOISTURE IS FORECAST TO STAY WELL WEST AND SOUTH OF THE AREA SO ONLY LIGHT WINDWARD SHOWERS CAN BE EXPECTED THIS PERIOD. FRACASSO