HAWAII EXTENDED FORECAST DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 635 AM EST SUN FEB 19 2012 VALID 00Z MON FEB 20 2012 - 00Z MON FEB 27 2012 STRONG SURFACE HIGH PRESSURE NORTHEAST OF THE ISLANDS WILL REMAIN UNTIL LATE WEEK BEFORE WEAKENING KEEPING UP MODERATE TO LOCALLY BRISK ISLAND TRADES. THIS HIGH WEAKENS BUT GENERAL WIDESPREAD TRADE FLOW CONTINUES INTO THE WEEKEND. POSSIBLE MID LEVEL TROF DEVELOPMENT OCCURS ALONG 160W-165W BY FRI-SAT WITH SOME SFC REFLECTION.THIS SHOULD INCREASE THE CHANCE OF SOME HEAVIER SHOWERS OVER THE REGION AS PWS INCREASE AS THE FLOW BECOMES MORE SERLY. A POTENTIALL FOR MUCH STRONGER MID LEVEL CLOSED TO CUTOFF LOW DEVELOPMENT AS SEEN BY ECMWF OVER THE WEEKEND. ROSENSTEIN