HAWAII EXTENDED FORECAST DISCUSSION NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 729 AM EST MON FEB 17 2014 VALID 00Z TUE FEB 18 2014 - 00Z TUE FEB 25 2014 HAWAI'I WEATHER REMAINS UNDER THE INFLUENCE OF A CUTOFF MID-LEVEL CIRCULATION AND ITS EMERGING 'COLD FRONT' THROUGH WEDNESDAY. WE RECOMMEND A BLEND OF THE 17/00Z ECENS-GEFS MEAN. WHAT TREND HAS EMERGED FROM THE MEDIUM RANGE GUIDANCE OVER THE PACIFIC DURING THE PAST 2-3 DAYS...IS THE APPEARANCE OF A FAST-MOVING AND PROGRESSIVE 'NEGATIVE-TILT' TROUGH CONFIGURATION ALOFT IN THE EAST CENTRAL PACIFIC AND ALONG THE MAINLAND'S WEST COAST. THIS DOES HAVE MORE OF A MARCH-APRIL LOOK AND AMPLIFIED...BUT PROGRESSIVE PATTERN TO THE UPPER-LEVEL FLOW. VOJTESAK