HAWAII EXTENDED FORECAST DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 554 AM EDT TUE SEP 06 2011 VALID 00Z WED SEP 07 2011 - 00Z WED SEP 14 2011 NORTH PACIFIC PATTERN CONTINUES TO AGREE ON THE EVOLUTION INTO A HIGHLY AMPLFIED PATTERN OF A STRONG BUILDING WEST PAC RIDGE AND DEEP CENTRAL PACIFIC TROUGH BY MID WEEK WITH A BREAK DOWN OF THE AMPLITUDE LATE WEEKEND AND EARLY NEXT WEEK INTO A MORE ZONAL FLOW ACROSS THE NORTH PACIFIC AND A RETURN OF RIDGING ALONG 30N. OPERATIONAL MODELS INDICATE A MID LEVEL WEKNESS IN ABOUT A WEEK TO THE NORTHWEST OF THE REGION.. WEAK TRADE FLOW THIS ENTIRE PERIOD ESPECIALLY WEST PORTIONS WITH A STALLED FRONTAL BOUNDARY NE-SW JUST WEST OF THE REGION. INCREASING TRADE FLOW IN ABOUT A WEEK AS STRONGER SURFACE HIGHS DEVELOP IN BOTH BOTH THE NE AND NW PORTIONS OF THE NORTH PACIFIC. ONLY OCNL LIGHT WINDWARD SHOWERS THROUGH THE PERIOD. ROSENSTEIN