HAWAII EXTENDED FORECAST DISCUSSION NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 745 AM EDT THU AUG 15 2013 VALID 00Z FRI AUG 16 2013 - 00Z FRI AUG 23 2013 THE GLOBAL NUMERICAL GUIDANCE CONTINUES TO INDICATE THAT HAWAI'I WILL BE UNDER THE SUBTROPICAL RIDGE AXIS, WITH THE POLAR FRONT WELL TO THE NORTH, AND THE PARADE OF TROPICAL WAVES PASSING WESTWARD TO THE SOUTH. WINDWARD SHOWERS SHOULD DELIVER LESS RAINFALL THAN NORMAL, WITH DEEP-LAYER DRY AIR LOCKED AT THE STATE'S LATITUDE. THE MID- AND HIGH-LEVEL CLOUD SHIELD ASSOCIATED WITH THE PASSAGE OF ONE OF THE TROPICAL WAVES SHOULD CLIP THE SOUTHERN ISLANDS FRIDAY AFTERNOON AND NIGHT. PREFER THE EUROPEAN CENTRE GUIDANCE OVER THE GFS, BASED ON ITS BETTER HANDLING OF THE TROPICAL SYSTEMS DURING THE LAST TWO WEEKS. CISCO