HAWAII EXTENDED FORECAST DISCUSSION NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD 710 AM EDT FRI SEP 16 2011 VALID 00Z SAT SEP 17 2011 - 00Z SAT SEP 24 2011 MODELS/ENSEMBLES SHOW MOSTLY MODERATE TRADES SETTLING IN AS POTENT SHOWER AREA VACATES THE ISLANDS BY THIS EVENING. FAIRLY FLAT ZONAL FLOW AT MIDLATITUDES ACROSS THE PACIFIC SHOULD HAVE LITTLE IMPACT ON THE SUBTROPICAL RIDGE TO ITS S UNTIL NEXT FRI WHEN THE RIDGE MAY BEGIN TO WEAKEN. A FAIRLY TYPICAL REGIME OF MAUKA AND WINDWARD SHOWERS WILL TAKE OVER BY MON. VERY WEAK TROFS IN THE EASTERLIES SAT/SUN...AND AGAIN LATE NEXT WEEK... WILL ENACT ONLY MINOR INCREASES IN THE WINDWARD SHOWER ACTIVITY. ON THE OTHER HAND...PW VALUES GRADUALLY DECREASING TO 1.00-1.25 EARLY NEXT WEEK SUGGEST AN ACCOMPANYING GRADUAL DECREASE IN SHOWER INTENSITY. PRECIPITATION TOTALS WILL BE ABOVE NORMAL NEXT TWO DAYS THEN DECREASE TO LIGHT TO MODERATE THE REMAINDER OF THE PERIOD. FLOOD