HAWAII EXTENDED FORECAST DISCUSSION NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 708 AM EST FRI DEC 06 2013 VALID 00Z SAT DEC 07 2013 - 00Z SAT DEC 14 2013 6/00Z DETERMINISTIC GFS/ECMWF AND THEIR MEANS WERE DECENT GUIDANCE TOOLS FOR THE 7-DAY FORECAST PERIOD. MEDIUM RANGE GUIDANCE SUGGESTS A SLIGHTLY MORE PROGRESSIVE FLOW PATTERN ACROSS THE NORTHERN PACIFIC. AS A RESULT OF CHANGES OCCURRING AT HIGH LATITUDE...THE CURRENT FORECAST FOR ANOTHER PROGRESSIVE SHORTWAVE TO APPROACH HAWAI'I FROM THE NORTHWEST AROUND MID WEEK (DAY 6-7) SEEMS APPROPRIATE. WILL MONITOR/TRACK ITS PROGRESS FOR ADDITIONAL DETAILS IN UPCOMING DAYS. UNTIL THEN...LIGHT TRADES AND SEASONAL TEMPERATURES SHOULD BE THE RULE ACROSS THE 50TH STATE. A WEAK DISTURBANCE IN THE TROPICS STILL IS ON TRACK (PER THE 6/00Z GFS/ECMWF) TO GENERATE SOME ADDITIONAL MID-LEVEL CLOUDINESS AND LOCALLY UNSETTLED CONDITIONS FOR EASTERN PORTIONS AROUND SATURDAY (7/18Z TIME FRAME). THIS DISTURBANCE APPROACHES FROM THE SOUTH...AND PRIMARILY IMPACTS THE HIGHEST ELEVATIONS (MAUI-BIG ISLAND). VOJTESAK