HAWAII EXTENDED FORECAST DISCUSSION NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 757 AM EDT FRI MAY 10 2013 VALID 00Z SAT MAY 11 2013 - 00Z SAT MAY 18 2013 RETURN TO SEASONAL WEATHER PATTERN ACROSS HAWAI'I WITH NORMAL TEMPERATURES AND A NOTEWORTHY INCREASE IN TRADE WND INTENSITY NEXT WEEK. STRONGEST TRADES LOOK TO SET UP NEXT WED/THU. 10/00Z GEFS/EC ENSEMBLES MEAN PACKAGES ARE IN MUCH BETTER AGREEMENT THROUGH 15/12Z WITH NORTH PACIFIC FLOW PATTERN...SHORTWAVE DEVELOPMENT ACROSS CENTRAL ALEUTIANS INVOF 170W AND WITH THE OVERALL DEPTH/POSITION OF THE UPPER-LEVEL TROUGH STRUCTURE OVER ALASKA. THIS IN TURN...ALLOWING FOR CONSIDERABLY BETTER DETAIL FOR THE SUBTROPICS AS THE SHORTWAVE ENERGY MIGRATES ACROSS THE MID-LATITUDE PACIFIC INVOF 150W BY 17/12Z. WITH MORE OF A FAST-ZONAL FLOW PATTERN ALONG AND NORTH OF 45N LATITUDE FROM THE DATELINE EASTWARD INTO THE MAINLAND AND SOUTHWEST CANADA...THIS MID-LATITUDE SHORTWAVE IS LIKELY TO PRODUCE FEWER SENSIBLE WEATHER IMPACTS FOR HAWAI'I THAN PREVIOUS TROUGHS/FRONTS THIS SPRING. VOJTESAK