HAWAII EXTENDED FORECAST DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 625 AM EST WED FEB 01 2012 VALID 00Z THU FEB 02 2012 - 00Z THU FEB 09 2012 FAST DEEP ZONAL PACIFIC FLOW CONTINUES JUST NORTH OF THE ISLAND THIS PERIOD WITH A TREND TOWARDS LOWERING HTS OVER AND EAST OF THE REGION OVER THE EPAC LATE PERIOD OVER THE WEEKEND AS THE FAST ZONAL FLOW ENCOUNTERS A BLOCKING RIDGE OVER THE EPAC AND NWRN NOAM. BY LATE WEEKEND AND EARLY NEXT WEEK THE STRONG PACIFIC WESTERLIES WILL SHIFT WELL SWD TO OR BELOW 20N INTO TROPICAL WATERS. THIS WILL ALLOW SEVERAL FRONTS IN THE WESTERLY FLOW TO PUSH THRU THE REGION KEEPING TRADES DISRUPTED. LACK OF BUILDING HIGH PRESSURE WILL KEEP TRADES DISRUPTED INTO THE WEEKEND WITH ANOTHER STRONGER FRONTAL APPROACH SUNDAY AND MONDAY WITH ANOTHER RE INFORCING FRONTAL APPROACH BY TUESDAY. ROSENSTEIN